tag:blogger.com,1999:blog-31430663563396169602024-03-13T19:00:46.236+00:00A Blog For Edderiofer's Logic PuzzlesThis is a blog for the discussing, solving, and creating of my logic puzzles.Edderioferhttp://www.blogger.com/profile/14154473591728134113noreply@blogger.comBlogger35125tag:blogger.com,1999:blog-3143066356339616960.post-65940568527123201512021-01-10T16:45:00.001+00:002021-01-10T16:45:10.325+00:00Puzzle #24<p>This is <b>The Terrifying Torus</b>, an original mashup puzzle. Rules are given below the image.</p><div style="margin-left: 1em; margin-right: 1em;"><div class="separator" style="clear: both; text-align: center;"><a href="https://i.imgur.com/kuFGb4F.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="800" data-original-width="800" height="640" src="https://i.imgur.com/kuFGb4F.png" width="640" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div><br />Difficulty: <b>hard</b></div><div style="margin-left: 1em; margin-right: 1em;"><br />Theme: <b>Secret Santa Gift for TheGreatEscaper</b><br /><br /><a href="https://www.dropbox.com/s/n7a2gbk7w1m1ixm/The_Terrifying_Torus.pdf?dl=0" rel="nofollow" target="_blank">PDF</a></div><div style="margin-left: 1em; margin-right: 1em;"><br /></div><div style="margin-left: 1em; margin-right: 1em;"><a href="https://git.io/JLj4g" rel="nofollow" target="_blank">Swaroop Penpa</a> (To have the answer checker confirm your solution, all lines, and only those lines, that lie in the centre 16x16 grid must be drawn.)</div><div style="margin-left: 1em; margin-right: 1em;"><div><br /></div><div><div>Rules: The puzzle is the centre 16x16 grid. It is divided into four 8x8 quadrants, and is <b>toroidal</b>, so the left and right sides connect to one another, as do the top and bottom sides. Faint copies of the adjacent grids are added for convenience.</div><div>Draw a single loop, whose vertices are grid vertices, that doesn't branch, <b>and whose segments may travel in any direction</b>, not just compass directions. Each visit of the loop to a region must contain a turn. Additionally, if any segment lies in a quadrant, then it must obey the rules of that quadrant:</div><div><ul style="text-align: left;"><li>The top left quadrant is <b>Kouchoku</b>: Every loop vertex in this quadrant must be at a clue. Every visit to this quadrant must begin and end on a dot. All copies of the same letter must be connected by a path passing through no other dots or letters, and different letters may not be connected. All dots and letters must be used by the loop. A 180° angle at a vertex is allowed in this quadrant. The loop may intersect itself in this quadrant, but ONLY at right angles. <i>(Colouring is for cosmetic purposes only.)</i></li><li>The top right quadrant is <b>Keima Loop</b>: Every loop vertex in this quadrant must be at a star. Pass through all stars, using only edges that are knight moves. A 180° angle at a vertex is allowed in this quadrant, but the loop may not intersect itself in this quadrant. Note that any loop segment going into or out of this region must be a knight move as well.</li><li>Bottom left quadrant is <b>Total Omnidirectional Midloop</b>: Pass through all dots, such that each dot is the midpoint of an edge. All dots are given. The loop is not allowed to have a 180° angle in this quadrant, nor may it intersect itself in this quadrant. <i>(Note that any loop segment going into or out of this region must be clued with a dot.)</i></li><li>Bottom right quadrant is <b>Angle Loop</b>: Every loop vertex in this quadrant must be at a clue and vice versa. A triangle indicates that the angle at that vertex is acute; a square, right; a pentagon, obtuse. The loop is not allowed to have a 180° angle in this quadrant, nor may it intersect itself in this quadrant.</li></ul></div></div></div><div style="margin-left: 1em; margin-right: 1em;"><br /><hr />Another Secret Solver puzzle from Puzzlers Club; this time for 2020 and TheGreatEscaper. No solution or example is provided this time, because frankly I can't be bothered.<br /><br />As with the previous one, I'm giving this a "hard" simply because two of these genres are novel, and non-orthogonal loops are generally not a thing people are fine with dealing with.<br /><br />Special thanks to SoftFro for typesetting this in Tikz, and to montelucci, rand_yosh314, jkittykitkat, Jamie Hargrove, boboquack, Deusovi, and SoftFro once again for testing this.</div>Edderioferhttp://www.blogger.com/profile/14154473591728134113noreply@blogger.com0tag:blogger.com,1999:blog-3143066356339616960.post-87791900537658813562020-09-28T07:02:00.003+01:002020-09-28T07:07:17.381+01:00Puzzle #23<p> This is a <a href="http://www.nikoli.co.jp/en/puzzles/where_is_black_cells.html">Kurodoko</a> puzzle.</p><div style="margin-left: 1em; margin-right: 1em;"><div class="separator" style="clear: both; text-align: center;"><div class="separator" style="clear: both; text-align: center;"><a href="https://i.imgur.com/csV0PrV.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="669" data-original-width="669" height="400" src="https://i.imgur.com/csV0PrV.png" width="400" /></a></div><div class="separator" style="clear: both; text-align: center;"><br /></div></div>Difficulty: <b>hard</b></div><div style="margin-left: 1em; margin-right: 1em;"><br />Theme: <b>logical</b><br /><br /><a href="https://puzz.link/p?kurodoko/9/9/3q2m7k5g9sdmcm7j8h9l9k9g">Puzz.link link. </a></div><div style="margin-left: 1em; margin-right: 1em;"><br />Found this one deduction in a different puzzle, made a puzzle to properly exploit it. If you know what you're looking for, though, this is a breeze.</div>Edderioferhttp://www.blogger.com/profile/14154473591728134113noreply@blogger.com0tag:blogger.com,1999:blog-3143066356339616960.post-44837259785349795802020-08-20T21:51:00.003+01:002020-09-28T07:07:27.231+01:00Puzzle #22<p> This is a <a href="https://www.gmpuzzles.com/blog/masyu-rules-and-info/" rel="nofollow" target="_blank">Masyu</a> puzzle.</p><div style="margin-left: 1em; margin-right: 1em;"><div class="separator" style="clear: both; text-align: center;"><a href="https://i.imgur.com/pizFlMT.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="741" data-original-width="741" height="400" src="https://i.imgur.com/pizFlMT.png" width="400" /></a></div><div class="separator" style="clear: both; text-align: center;"><br /></div>Difficulty: <b>extreme</b></div><div style="margin-left: 1em; margin-right: 1em;"><br />Theme: <b>None</b><br /><br /><a href="https://puzz.link/p?mashu/10/10/00113a00033b00a09a20a3113790a10000" rel="nofollow" target="_blank">Puzz.link link.</a> </div><div style="margin-left: 1em; margin-right: 1em;"><br />This was originally made to showcase one particular deduction, but I accidentally made it too hard and bashy while trying to remove cooks. Oops. Well, hopefully it's still not <i>too</i> bad...</div>Edderioferhttp://www.blogger.com/profile/14154473591728134113noreply@blogger.com0tag:blogger.com,1999:blog-3143066356339616960.post-82348374657439148652020-08-10T22:16:00.002+01:002020-09-28T07:07:37.854+01:00Puzzle #21<p> This is a <a href="https://www.gmpuzzles.com/blog/yajilin-rules-and-info/" rel="nofollow" target="_blank">Yajilin</a> puzzle.</p><div style="margin-left: 1em; margin-right: 1em;"><div class="separator" style="clear: both; text-align: center;"><a href="https://i.imgur.com/Hpcv5eP.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="669" data-original-width="741" height="361" src="https://i.imgur.com/Hpcv5eP.png" width="400" /></a></div><div class="separator" style="clear: both; text-align: center;"><br /></div>Difficulty: <b>medium</b></div><div style="margin-left: 1em; margin-right: 1em;"><br />Theme: <b>No Blacks?</b><br /><br /><a href="https://puzz.link/p?yajilin/b/10/9/40i40i40b0.0.b0.b40i40b0.b0.b0.40i40f0.b40f0.b4.i" rel="nofollow" target="_blank">Puzz.link link.</a> </div><div style="margin-left: 1em; margin-right: 1em;"><br />Inspired by two Yajilin puzzles on a similar theme by Twitter user @agnomy. There are two main ways people have found to get to the solution, and neither are <i>that</i> easy.</div>Edderioferhttp://www.blogger.com/profile/14154473591728134113noreply@blogger.com1tag:blogger.com,1999:blog-3143066356339616960.post-63798880833287669702020-08-09T01:37:00.006+01:002020-08-09T10:42:14.546+01:00Puzzle #20<p>This is an Numbered Arrows Mashup Loop puzzle, an original mashup genre. Rules are given below the image.</p><div style="margin-left: 1em; margin-right: 1em;"><div class="separator" style="clear: both; text-align: center;"><img height="640" src="https://i.imgur.com/NxxsEsn.png" width="539" /></div><br />Difficulty: <b>hard</b></div><div style="margin-left: 1em; margin-right: 1em;"><br />Theme: <b>Secret Santa Gift for <a href="https://ihnnpuzzles.blogspot.com/" rel="nofollow" target="_blank">IHNN</a></b><br /><br /><a href="https://www.dropbox.com/s/he5t1lwgpn6y3ri/IHNN_SecretSolver2019.pdf?dl=0" rel="nofollow" target="_blank">PDF</a></div><div style="margin-left: 1em; margin-right: 1em;"><br /></div><div style="margin-left: 1em; margin-right: 1em;"><a href="https://puzz.link/p?yajilin/b/20/20/zp112.0.114.42d0.0.b1011d310.0.0.0.0.d0.0.b0.0.f0.0.f0.0.2.2.0.0.f0.0.f0.0.0.250.0.d310.0.0.0.42d0.0.b0.0.d220.0.232221d2125b2.21zzzf0.d3.d14d14d0.11c43d0.0.c0.d0.a0.b14d33a12b0.d0.b0.a42d0.b0.a0.d0.c0.0.d0.c3245d0.d45d24d31zp" rel="nofollow" target="_blank">Puzz.link</a> (Note that the answer checking and clue colouring are nonexistent here, since this merely uses the Yajilin interface.)</div><div style="margin-left: 1em; margin-right: 1em;"><br />Rules: Draw a loop through non-clue cells and shade the unused cells. Shaded cells may not be
orthogonally adjacent (as in Yajilin). Each arrowed clue has a “line of sight” in the given
direction, up until the edge of the grid. In addition, each quadrant's clues behave
differently:</div><div style="margin-left: 1em; margin-right: 1em; text-align: left;"><ul><li>Clues in the top-left quadrant are <b>Yajilin</b> clues; they indicate the number of shaded
cells in the clue's line of sight.</li><li>Clues in the top-right are <b>Castle Wall</b> clues; they indicate the total length of the
loop segments along that clue's line of sight.</li><li>Clues in the bottom-left quadrant are <b>Slalom Count</b> clues; they indicate the
number of times the loop passes straight across the line of sight of the clue without
turning. <i>(Note that this type of clue does NOT count occurrences of the loop passing
through the line of sight when turning, and that the loop is allowed to behave in this
way regardless.)</i></li><li>Clues in the bottom-right quadrant are <b>First Seen Geradeweg</b> clues; they indicate
the length of the first-seen loop segment; if the first-seen cell used by the loop is a
corner, both segments incident to that corner must be of that length.</li></ul><div>(The small images around the puzzle are to remind you what each clue does.)</div><div><br /></div><div>Below is an example and its solution:</div><div style="text-align: center;"><img height="278" src="https://i.imgur.com/fWlkdLb.png" width="640" /></div></div><div style="margin-left: 1em; margin-right: 1em; text-align: left;"><br /><hr />I actually constructed this one for Puzzlers Club's annual Secret Solver event last year and only just got around to posting it now. Secret Solver is our version of Secret Santa, wherein everyone participating writes a puzzle for someone else. In this case, I had to write a puzzle for IHNN.<br /><br />A full walkthrough and writeup can be seen <a href="https://docs.google.com/document/d/1szvjcOwCi_3xMHby_q8pMKPLC5THJ282eJD2-N6dYkw/edit?usp=sharing" rel="nofollow" target="_blank">here</a> (but please don't read it until you've at least had a good crack at the puzzle). Many thanks to SoftFro for creating the images and PDF.<br /><br />Even though, having constructed it, I think it's a medium, I'm rating it as "hard" just in case, and in part due to the fact that two of these genres are novel.<br /><br />Anyway, I should probably get around to porting most of my puzzles to this blog (except maybe the ones I'm submitting elsewhere?). I've been constructing puzzles occasionally for the last 6 or so years, so I *should* have a pretty reasonable backlog. (Then again, a ton of them are "easy" by my standards and I don't necessarily want to flood the blog with them...)</div>Edderioferhttp://www.blogger.com/profile/14154473591728134113noreply@blogger.com0tag:blogger.com,1999:blog-3143066356339616960.post-43788513281562900712020-08-01T08:13:00.000+01:002020-08-01T08:13:18.593+01:00Puzzle #19<div style="margin-left: 1em; margin-right: 1em;">
<a href="https://www.blogger.com/blogger.g?blogID=3143066356339616960&useLegacyBlogger=true" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"></a><a href="https://www.blogger.com/blogger.g?blogID=3143066356339616960&useLegacyBlogger=true" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"></a>This is a <a href="http://www.cross-plus-a.com/html/cros7rukk.htm">Look-Air</a> puzzle.</div>
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<a href="https://i.imgur.com/7FtpINL.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="741" data-original-width="741" height="400" src="https://i.imgur.com/7FtpINL.png" width="400" /></a></div>
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Difficulty: <b>easy</b></div>
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Theme: <b>Algorithmically Generated</b><br />
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<a href="https://puzz.link/p?lookair/10/10/2a2b2a2d2j22a22e2g22i22a2c2g22i22t">Puzz.link link.</a> </div>
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Puzzlers Club has recently been experimenting with generating puzzles via the simple algorithm of "place a clue in the first spot where it can go, then repeat". Here's a Look-Air generated by placing a "2" in the first cell in reading order that could contain one legally (and which would give information).</div>
Edderioferhttp://www.blogger.com/profile/14154473591728134113noreply@blogger.com0tag:blogger.com,1999:blog-3143066356339616960.post-41061356705467684372020-05-10T14:48:00.002+01:002020-09-28T07:07:52.649+01:00Puzzle #18<div style="margin-left: 1em; margin-right: 1em;">
This is a <a href="http://edderiofer.blogspot.com/2015/04/rules-of-heyawake.html">Heyawake</a> puzzle. </div>
<div style="margin-left: 1em; margin-right: 1em; text-align: center;"><div class="separator" style="clear: both;"><br /></div><div class="separator" style="clear: both; text-align: center;"><a href="https://i.imgur.com/mizj23z.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="800" data-original-width="800" height="400" src="https://i.imgur.com/mizj23z.png" width="400" /></a></div><div class="separator" style="clear: both;"><br /></div></div>
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Difficulty: <b>extreme</b><br />
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Theme: <b>Filled Empty Space</b><br />
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<a href="https://puzz.link/p?heyawake/17/17/000000000000001g00000000c000000000o0000003800260jg0000000000000000040010000004001000000100080001c004gg1u40hg00-5f1l">Puzz.link link.</a> </div>
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Recently learned about an advanced Heyawake deduction. Here's my take on it. In addition, this puzzle requires bashing (or some deduction I haven't figured out yet). That's why this puzzle merits an "extreme" rating and not merely a "hard" rating. You have been warned.<br /><br />Many thanks to rob and Freddie Hand for proving this unique.</div>
Edderioferhttp://www.blogger.com/profile/14154473591728134113noreply@blogger.com0tag:blogger.com,1999:blog-3143066356339616960.post-20699011208561155082020-04-22T19:34:00.003+01:002020-09-28T07:09:08.702+01:00Puzzle #17<div style="margin-left: 1em; margin-right: 1em;">
This is a <a href="https://mellowmelon.wordpress.com/castle-wall/">Castle Wall</a> puzzle. </div>
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<a href="https://i.imgur.com/T3J5EkS.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="741" data-original-width="741" height="400" src="https://i.imgur.com/T3J5EkS.png" width="400" /></a></div>
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Difficulty: <b>medium</b><br />
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Theme: <b>Logical</b><br />
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<a href="https://puzz.link/p?castle/10/10/a223c20.c231i231i231i23124.d141d242m20.a10.e113g241i241e211211211211">Puzz.link link.</a> </div>
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Just a puzzle I decided to make, using a Castle Wall deduction I don't seem to see too often. In general, I find that most Castle Walls available tend to use only deductions I consider "easy", so hopefully this will introduce you to a deduction you might not have known. Then again, given who likely reads this blog, I'm guessing that most of you already do know this deduction...<br /><br />Rules link is to MellowMelon's blog; he created this puzzle genre. I'm sure there's MUCH more potential in this genre than the deductions I already know of and have seen elsewhere, though.</div>
Edderioferhttp://www.blogger.com/profile/14154473591728134113noreply@blogger.com1tag:blogger.com,1999:blog-3143066356339616960.post-23481915302036303752020-04-01T04:40:00.003+01:002020-09-28T07:09:34.177+01:00Puzzle #16<div style="margin-left: 1em; margin-right: 1em;">
This is a Cipher Hashiwokakero puzzle, a variant of <a href="http://edderiofer.blogspot.com/2017/01/rules-of-hashiwokakero.html">Hashiwokakero</a>. In addition to the rules of Hashiwokakero, each number has been replaced by a letter. Different letters refer to different numbers, and the same letters refer to the same number.</div>
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<a href="https://i.imgur.com/A8htPAi.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="800" data-original-width="800" height="400" src="https://i.imgur.com/A8htPAi.png" width="400" /></a></div>
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Difficulty: <b>medium (not actually an <a href="http://mathgrant.blogspot.co.uk/2009/05/evil-zinger-2-process-of-illumination.html">Evil Zinger</a>)</b><br />
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Theme: <b>Bridge X-tension</b><br />
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<a href="https://puzz.link/p?hashi/v:/13/13/.g.m.g.s.o.g.w.i.zm.g.w.i.i.s.q.s.g.g.k.g./">Puzz.link link.</a> (Note: Because Puz-PRE does not use letters in Hashiwokakero, all Xs in the puzzle have been replaced by blank islands in the link. Puz-PRE does not have the "same letters refer to the same clues" constraint programmed in, so the solver may mark incorrect answers as correct.)</div>
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Puzz.link does not support letters in Hashiwokakero, I had to manually add all the Xs in Paint.NET.<br />
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So yeah, this puzzle isn't quite as EZ as a normal Evil Zinger as I would have liked. Shame.</div>
Edderioferhttp://www.blogger.com/profile/14154473591728134113noreply@blogger.com1tag:blogger.com,1999:blog-3143066356339616960.post-57631639445393002372020-03-18T04:41:00.003+00:002020-09-28T07:09:40.766+01:00Puzzle #15<div style="margin-left: 1em; margin-right: 1em;">
This is a <a href="http://edderiofer.blogspot.com/2016/09/rules-of-masyu.html" target="_blank">Masyu</a> puzzle.<br />
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<a href="https://i.imgur.com/FcTwHjv.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="800" data-original-width="800" height="400" src="https://i.imgur.com/FcTwHjv.png" width="400" /></a></div>
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Difficulty: <b>medium</b><br />
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Theme: <b>Logical</b></div>
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<a href="https://puzz.link/p?mashu/11/11/0000300002026i9b0909i90i309a6300013390000">Puzz.link link.</a></div>
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Have a Masyu puzzle I constructed on request from an acquaintance. No clue how often I'll keep updating this blog, but I think I have something for here that I should probably post at some point.</div>
Edderioferhttp://www.blogger.com/profile/14154473591728134113noreply@blogger.com0tag:blogger.com,1999:blog-3143066356339616960.post-8144930462058938642020-02-14T00:00:00.001+00:002020-09-28T07:09:47.048+01:00Puzzle #14<div style="margin-left: 1em; margin-right: 1em;">
This is a Double Choco puzzle. I can't be bothered to write rules pages for every single genre that I come across any more, so the rules are below.<br />
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<a href="https://i.imgur.com/CqApmqX.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="729" data-original-width="800" height="363" src="https://i.imgur.com/CqApmqX.png" width="400" /></a></div>
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Difficulty: <b>hard</b><br />
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Theme: <b>Valentine's Day</b></div>
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<a href="https://puzz.link/p?dbchoco/11/10/00333rpvsvufv3v0v07010zo2k2g3g2n4h3n3l6q1k5y7j" target="_blank">Puzz.link link.</a><br />
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Divide the grid along the grid lines into orthogonally-connected regions. Each region should have exactly one grey half and exactly one white half; each half-region should be orthogonally connected, and the two halves should be exactly congruent. Numbers indicate the size of the half-region containing them; a region can have zero, one, two, or more numbers inside it.<br />
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Apparently Japanese Puzzle Twitter is making a bunch of these for Valentine's Day, so I thought I'd join in the fun. However, the latter half of the puzzle was difficult to finish off and I ended up enlisting the help of Puzzlers Club. Thanks to ManyPinkHats for coming up with a good end. It's still quite casebashy, though, so you have been warned.</div>
Edderioferhttp://www.blogger.com/profile/14154473591728134113noreply@blogger.com0tag:blogger.com,1999:blog-3143066356339616960.post-71642382286535960492018-08-18T20:49:00.002+01:002020-09-28T07:10:46.402+01:00Puzzle #13<div style="margin-left: 1em; margin-right: 1em;">
This is a Go puzzle.<br />
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Oh wait no, it's actually a <a href="http://edderiofer.blogspot.co.uk/2016/09/rules-of-masyu.html">Masyu</a>. (Click on image to get a Masyu grid. With hope, this will work, though I'm not immediately sure as Blogspot's "Preview" option doesn't allow you to click on links.)</div>
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<a href="https://i.imgur.com/nkav31a.png" target="_blank"><img alt="Yes, that's right, just click on this and you'll get a version of the puzzle that's on an actual Masyu grid instead of a Go board." border="0" data-original-height="548" data-original-width="548" height="400" src="https://i.imgur.com/6jbWEdP.png" width="400" /></a></div>
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Difficulty: <b>hard</b><br />
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Theme: <b>White Wins</b></div>
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<a href="http://pzv.jp/p.html?mashu/19/19/093001393443093a19140a1190c110401a110c141009a0a0aa93a1300c9c0900a9111991304031191409c10343a343c311a0c1a311994410300011090">Puz-PRE link.</a></div>
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I made a joke when watching someone stream Go (aka Baduk, aka Weiqi), about Go positions actually being Masyu positions. Several weeks later, the idea was still bobbing around in my head, so I made this weird puzzle to go in <a href="https://old.reddit.com/r/badukshitposting/comments/988al9/senseis_definitions_rules_of_go/" target="_blank">a post on /r/badukshitposting</a>. It also involves repeated application of a trick that should be known to all intermediate/advanced Masyu solvers.<br />
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(To save you unnecessary checking, there are no "3-white-circles-in-a-row" configurations in this position.)</div>
Edderioferhttp://www.blogger.com/profile/14154473591728134113noreply@blogger.com0tag:blogger.com,1999:blog-3143066356339616960.post-88506469308476787482018-04-30T07:22:00.003+01:002020-09-28T07:10:53.394+01:00Puzzle #12<div style="margin-left: 1em; margin-right: 1em;">
This is a <i>The Witness</i> puzzle-- Hey, someone's peeled all the stickers off this one!</div>
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<a href="https://i.imgur.com/zf5PXEG.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="556" data-original-width="478" height="400" src="https://i.imgur.com/zf5PXEG.png" width="344" /></a></div>
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Difficulty: <b>Medium</b><br />
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Theme: <b>Solvable</b></div>
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<a href="https://windmill.thefifthmatt.com/build"><i>The Windmill</i> link</a> (Note: Due to the nature of this puzzle, you will have to input the polyominoes yourself.)</div>
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Just something I came up with this morning. Hopefully it's enjoyable and sufficiently within the spirit of the game.</div>
Edderioferhttp://www.blogger.com/profile/14154473591728134113noreply@blogger.com0tag:blogger.com,1999:blog-3143066356339616960.post-67704370419946206792018-04-19T03:06:00.001+01:002020-09-28T07:11:01.628+01:00Hunt Puzzle #2: Deceptive Diagramless<div class="separator" style="clear: both;">
This is not a logic puzzle. Yes, I've jumped the shark again (for another post).</div>
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Note: You will probably want some form of graph paper, square paper, crossword-constructing program, spreadsheet software, or some tool for inputting things into a grid to solve this. Some blank 25x25 grids are provided with the PDF download, but this does not imply that the size of the grid is 25x25; the size of the grid is for the solver to determine.<br />
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The final answer is a single word, thematic to the puzzle.<br />
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Difficulty: <b>Hard</b><br />
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Theme: <b>(To be discovered while solving.)<br /><br />ERRATUM: At 19/04/2018, 08:33, the clues 17A, 34A and 1D were amended, as an earlier version of the puzzle was uploaded by accident. The PDF has been updated to match. Your progress should not have been affected.<br /><br /><a href="https://www.dropbox.com/s/pwg4ek33gadgtll/Hunt%20Puzzle%20%232.pdf?dl=0">PDF download here.</a></b><br />
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<a href="https://i.imgur.com/rKJleu4.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="800" data-original-width="800" height="400" src="https://i.imgur.com/rKJleu4.png" width="400" /></a></div>
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<b>ACROSS:</b><br />
1 Make dark mountain hold deficiency<br />
4 Environment Secretary meeting with nurse, or politician?<br />
7 Save money for a radio<br />
9 Papers for chart in steel amalgamate<br />
10 I taunt lad; it breaks down, feeling related<br />
11 Enrage badly, without end!<br />
12 Boba to wiretap iocaine smuggler<br />
14 Laved due, unfortunately, went down in price<br />
15 Froth from sclera fluid<br />
17 Poetry menace Cyril<br />
18 Opening found in print roller<br />
20 Reminder of right speed, in hindsight<br />
22 Snitches, captured: point values?<br />
24 Later, behind protections<br />
26 Repairs what we hear mongrel destroys<br />
27 Chaos from left changing direction, amidst yen collapse<br />
29 Hero-destroyed clothing: wear it<br />
30 For example, Snapchat collage? Ideal mosaic! (2 wds)<br />
32 Incorrectly label ricin as "glitter"<br />
34 Outlines of pruned shrubs<br />
35 Repeating without one answering<br />
36 Tool on German submarine? Silent? Worrisome<br />
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<b>DOWN:</b><br />
1 Two nibbles by the heartless<br />
2 Speed up treacle ace? Difficult<br />
3 Student ran tirelessly, hid contestant<br />
4 Germanic people, rating, shot wildly<br />
5 Unpredictably, Eric ate rodent companion<br />
6 Circuit's gate with some data<br />
7 King or Queen in mix-up, slain? That's murder, for one (2 wds)<br />
8 Foreshadowed queen of the gods led five-hundred within<br />
11 Newer hay, tossed around, is in every place<br />
13 Phone a friend who's a clown, maybe?<br />
14 Sensitive operator #99 had lunch, for example<br />
16 Draws anti-tank plots<br />
19 The Reverend reports a patchwork car near the pavement<br />
21 Understands rises<br />
23 Basically, the Spanish sent me all year<br />
24 Chocolate bar's ultra-erotic contents<br />
25 Large pipes swat airmen in battle (2 wds)<br />
26 Comforted criminal put bottom on shoe<br />
28 Cry loudly, "Why, behead the moral traitor!" (2 wds)<br />
31 Length of weather office's reply<br />
32 Radical type's second organization?<br />
33 Prison square<br />
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Exams are coming up in a month (again), so expect what little output there is now to dwindle (again). Hopefully I can get back to making more puzzles afterwards (but don't count on it, again).<br />
<br />
Yes, I just copy-pasted most of this from the previous Hunt Puzzle. :PEdderioferhttp://www.blogger.com/profile/14154473591728134113noreply@blogger.com0tag:blogger.com,1999:blog-3143066356339616960.post-53120053370262474922018-04-01T00:00:00.001+01:002020-09-28T07:11:12.205+01:00 Puzzle #11<div style="margin-left: 1em; margin-right: 1em;">
This is a Ciphered Clue Tapa puzzle, a variant of <a href="https://edderiofer.blogspot.com/2018/03/rules-of-tapa.html">Tapa</a>. In addition to the rules of Tapa, each clue has been replaced by a letter. Different letters refer to different clues, and the same letters refer to the same clues. (Note that a clue may be composed of multiple numbers, unlike in regular Cipher Tapa where each letter corresponds to a single number.)</div>
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<a href="https://i.imgur.com/RInOQEs.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="800" data-original-width="800" height="400" src="https://i.imgur.com/RInOQEs.png" width="400" /></a></div>
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Difficulty: <b><a href="http://mathgrant.blogspot.co.uk/2009/05/evil-zinger-2-process-of-illumination.html">Evil Zinger</a></b><br />
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Theme: <b>The most X-hausting Ciphered Clue Tapa ever!</b></div>
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<a href="http://pzv.jp/p.html?tapa/10/10/q.h.h.m.h.r.h..g.j.k.l..j.o.h.g.g.q">Puz-PRE link.</a> (Note: Because Puz-PRE does not use letters in Tapa, all Xs in the puzzle have been replaced by question marks in the link. Puz-PRE interprets "?" as meaning "a single number", and does not have the "same letters refer to the same clues" constraint programmed in, so the solver may mark incorrect answers as correct and correct answers as incorrect.)</div>
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Because Puz-PRE does not use letters in Tapa, I had to manually go in and edit all the ?s into Xs. Bleugh.<br />
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Anyway, as with <a href="http://edderiofer.blogspot.co.uk/2017/04/puzzle-7.html">my previous Evil Zinger</a>, I don't blame you if you've stopped trying after 10 seconds. Remember to prove uniqueness!</div>
Edderioferhttp://www.blogger.com/profile/14154473591728134113noreply@blogger.com0tag:blogger.com,1999:blog-3143066356339616960.post-35369300610520722912018-03-31T23:22:00.000+01:002018-03-31T23:22:22.047+01:00Rules of TapaShade some empty cells (at least one) such that:<br />
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1. All shaded cells are orthogonally connected.<br />
2. No 2x2 block of cells is entirely shaded.<br />
3. Numbers indicate the length of consecutive shaded blocks in the 8 neighbouring cells. (For instance, a "2 2 1" clue indicates that in the 8 cells surrounding the clue, there is a block of 2 consecutive shaded cells, a block of 2 consecutive shaded cells, and a block of 1 consecutive shaded cell, with blocks being separated from each other by empty cells.)<br />
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Below is an example and its answer.<br />
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<a href="https://i.imgur.com/mtMyA42.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="184" data-original-width="343" height="171" src="https://i.imgur.com/mtMyA42.png" width="320" /></a></div>
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Edderioferhttp://www.blogger.com/profile/14154473591728134113noreply@blogger.com0tag:blogger.com,1999:blog-3143066356339616960.post-1293293681826581272018-02-24T09:41:00.000+00:002018-02-24T09:43:54.148+00:00Puzzle #10<div style="margin-left: 1em; margin-right: 1em;">
This is a Quadrant Clue Placement Masyu puzzle, a variant of <a href="http://edderiofer.blogspot.co.uk/2016/09/rules-of-masyu.html">Masyu</a>. In addition to the rules of Masyu, within each quadrant, add the corresponding given 3x2 arrangement of clues, given at right. Blank squares within the arrangement must lie within the quadrant, and should be treated as "transparent" in that if they overlap an existing clue, the existing clue continues to exist. Arrangements may NOT be rotated.</div>
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<a href="https://i.imgur.com/aO6El5i.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="497" data-original-width="733" height="270" src="https://i.imgur.com/aO6El5i.png" width="400" /></a></div>
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Difficulty: <b>Medium</b><br />
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Theme: <b>Two by Two</b></div>
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<a href="http://pzv.jp/p.html?mashu_edit/10/10/3000090000000309000000000000000000">Puz-PRE link.</a> (Note that this is a link to the editor, not the solver. This is so that you can add the clues yourself.)</div>
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So... I dreamt that I was solving a puzzle of this genre. Then I woke up halfway through solving and got really pissed off that I couldn't finish the job. So I got up and constructed this puzzle. (Turns out the puzzle I was solving in my dream was either a Liar Quadrant Placement Masyu puzzle, or I'd made some really stupid false deductions in my dream. Funny how my subconscious was able to determine that we'd need a ton of black circles in the arrangements to force things, but wasn't able to make good deductions?<br />
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This one probably has a bit more case-bashing than my puzzles usually do.</div>
<script src="https://thegriddle.net/api/api.js" type="text/javascript"></script>Edderioferhttp://www.blogger.com/profile/14154473591728134113noreply@blogger.com0tag:blogger.com,1999:blog-3143066356339616960.post-46040396244515428992017-07-26T04:03:00.002+01:002017-08-02T18:45:36.264+01:00Puzzle #9<div style="margin-left: 1em; margin-right: 1em;">
This is a <a href="http://edderiofer.blogspot.co.uk/2016/09/rules-of-masyu.html">Masyu</a> puzzle.</div>
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<a href="http://i.imgur.com/Qa0QurY.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="398" data-original-width="398" height="320" src="https://i.imgur.com/Qa0QurY.png" width="320" /></a></div>
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Difficulty: <b>trivial</b><br />
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Theme: <b>Diagonal... Symmetry?!</b></div>
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<a href="http://pzv.jp/p.html?mashu/8/8/0016l003i09136009b9c30">Puz-PRE link.</a></div>
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Alright, so I took my Shindanmaker result a little too literally with "must have one line of symmetry". But it never said the line of symmetry had to go through the centre!<br />
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An alternate theme name I could have gone with is "Mostly-White Spade". But I think this current theme stands out best. :P</div>
Edderioferhttp://www.blogger.com/profile/14154473591728134113noreply@blogger.com0tag:blogger.com,1999:blog-3143066356339616960.post-72089913260602633532017-07-26T02:04:00.001+01:002017-08-02T18:45:21.636+01:00Puzzle #8<div style="margin-left: 1em; margin-right: 1em;">
This is a <a href="http://edderiofer.blogspot.co.uk/2016/09/rules-of-masyu.html">Masyu</a> puzzle.</div>
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<a href="http://i.imgur.com/tqj5wzD.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="494" data-original-width="494" height="320" src="https://i.imgur.com/tqj5wzD.png" width="320" /></a></div>
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Difficulty: <b>trivial</b><br />
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Theme: <b>Diagonal Antisymmetry</b></div>
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<b><br /></b></div>
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<a href="http://pzv.jp/p.html?mashu/10/10/20100011l020k09ii6a30b0000b1fi0000">Puz-PRE link.</a></div>
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What's this? A simple Masyu puzzle for my first post in ages? Yes.<br />
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On Twitter right now, a few Japanese puzzlemakers are using a <a href="https://shindanmaker.com/737304">Shindanmaker</a> to decide what puzzles to create. My task was to create an 8-by-8 Masyu that had givens with linear symmetry. Naturally, I decided to make one with antisymmetry because antisymmetric Masyus are considered beautiful.<br />
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And of course, I forgot about the size of the grid when making it. And it also turned out way easier than I'd have liked it. Ugh.<br />
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Oh well, I'm still posting it here for content because I still think it's a nice theme. Thanks go to mathgrant for helping me place a pair of givens to give a unique solution when I thought I'd run into something unfixable.<br />
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Hmm, the word "run" in "I thought I'd run into" could be in either past perfect tense or present conditional tense. Interesting.<br />
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Anyway, I think I'll post the 8x8 Masyu if I construct it. Which I hopefully will.</div>
Edderioferhttp://www.blogger.com/profile/14154473591728134113noreply@blogger.com0tag:blogger.com,1999:blog-3143066356339616960.post-9884206586493024352017-05-08T19:39:00.000+01:002017-08-02T18:45:01.586+01:00Hunt Puzzle #1<div class="separator" style="clear: both; text-align: left;">
This is not a logic puzzle. Yes, I've jumped the shark (just for this one post). The final answer is a single word.</div>
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Difficulty: <b>Medium</b><br />
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Theme: <b>Anything Puzzler Media can do, I can do better!<br /><br /><a href="https://www.dropbox.com/s/xvhmjgjj79dfeda/Hunt%20Puzzle%20%231.pdf?dl=0">PDF download here.</a></b><br />
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<a href="http://i.imgur.com/e6iCOZb.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="400" src="https://i.imgur.com/e6iCOZb.png" width="400" /></a></div>
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<ul>
<li>A cure, mixed for a rocket</li>
<li>Accidental smart</li>
<li>Add two to ice container</li>
<li>Against a part of a poem</li>
<li>Aged eccentric's exclamation</li>
<li>An algebra falsehood</li>
<li>Attempt street meeting</li>
<li>Be angry with half of triangle</li>
<li>Be next to one; however...</li>
<li>Copper search going from 2 to 8</li>
<li>Crossdresser's "opposite part"</li>
<li>Detailed tree confusion</li>
<li>Endlessly diddled about!</li>
<li>Endlessly walk through water glob</li>
<li>Erodes alternative pass</li>
<li>Even Seymour's bird</li>
<li>Fail a second time? Careless!</li>
<li>Grace, confused, entering A&E area</li>
<li>Hash mag'd ENE e.g. KPvK</li>
<li>Healing and processing, I calmed</li>
<li>Hostile leaders of Iraq, Cambodia, and Yemen</li>
<li>Imaginary friend put Al in distress</li>
<li>Includes irritated dads</li>
<li>Lunatic's ole' cat</li>
<li>Make a mistake and boo Caesar</li>
<li>Middle-Eastern whaling ship captain switches out head of harpoon, for reals</li>
<li>Parasite digested leaf</li>
<li>Pee jumps back; strange</li>
<li>Planning and including partner</li>
<li>Pod #12 rots sandwich</li>
<li>Rear's after front part</li>
<li>Recited poetry overdue</li>
<li>Recruit's partially tan</li>
<li>River cove opens up beginnings</li>
<li>Ruth et al.'s sample letter</li>
<li>Scientist's endless test lab</li>
<li>Skins masks</li>
<li>Sledge-hammered windowsills</li>
<li>Soaked tweeds, ruined</li>
<li>Study at regional advisory headquarters</li>
<li>Uzi 'n' cannon to hide copper's partner for battery</li>
<li>Walked around setter in street</li>
<li>Weasley character goes back to a gate</li>
<li>Wheeze in big aspen </li>
<li>Whole-some, I hear</li>
<li>Without sex, start to cum with speed</li>
<li>Wrecks head half and tail of common bird</li>
</ul>
<hr />
Exams are coming up in a month, so expect what little output there is now to dwindle. Hopefully I can get back to making more puzzles afterwards (but don't count on it).Edderioferhttp://www.blogger.com/profile/14154473591728134113noreply@blogger.com0tag:blogger.com,1999:blog-3143066356339616960.post-6333344961349386562017-04-01T00:00:00.000+01:002017-04-01T00:00:00.832+01:00Puzzle #7<div style="margin-left: 1em; margin-right: 1em;">
This is a <a href="https://www.gmpuzzles.com/blog/2017/03/masyu-deformable-serkan-yurekli/">Deformable</a> <a href="http://www.gmpuzzles.com/blog/2013/05/dr-sudoku-prescribes-93-masyu-total/">Total Masyu</a> puzzle, a variant of <a href="http://edderiofer.blogspot.com/2016/09/rules-of-masyu.html">Masyu</a>. In addition to the rules of Masyu, all possible circles have been given; i.e. it is not possible to add any more circles to the grid so that it is consistent with the solution. Further, any white circle may instead behave as a black circle.</div>
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<a href="http://i.imgur.com/kMv3hxu.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="https://i.imgur.com/kMv3hxu.png" width="320" /></a></div>
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Difficulty: <b><a href="http://mathgrant.blogspot.co.uk/2009/05/evil-zinger-2-process-of-illumination.html">Evil Zinger</a></b><br />
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Theme: <b>The most evil Deformable Total Masyu ever!</b></div>
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<a href="http://pzv.jp/p.html?mashu/10/10/0000000000000000000000000000300100">Puz-PRE link.</a> (Note: Puz-PRE has neither the "total" nor "deformable" constraints programmed in. The solver may incorrectly mark incorrect answers as correct, and may mark a valid answer as incorrect.)</div>
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This is truly the most evil puzzle on my blog so far. Expect to use every single constraint in the rules, along with a bunch of techniques you may have not encountered before. I honestly don't blame you if you stop trying after 10 seconds.<br /><br />And remember, you have to prove uniqueness!</div>
Edderioferhttp://www.blogger.com/profile/14154473591728134113noreply@blogger.com0tag:blogger.com,1999:blog-3143066356339616960.post-55261058819440111972017-01-27T16:53:00.000+00:002017-01-27T16:57:03.759+00:00Puzzle #6<div style="margin-left: 1em; margin-right: 1em;">
This is a <a href="http://edderiofer.blogspot.co.uk/2017/01/rules-of-hashiwokakero.html">Hashiwokakero</a> puzzle.</div>
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<a href="http://i.imgur.com/wsIGrfh.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="https://i.imgur.com/wsIGrfh.png" width="320" /></a></div>
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Difficulty: <b>medium</b><br />
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Theme: <b>Clue overload and logic.</b></div>
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<a href="http://pzv.jp/p.html?hashi/18/18/2g3g4i2i3g4g2h3g2g3g2g3g2g2g1g23g2g3i2i3g2g2h3g5g5g3g3g3g4g1g34g3o3g4g3h2g2o2g2g33g4q3g3h4g4h3i2m4g3q3g2h3q3g3g43g3q3g3m2i3m2g2q3g4h4g5o5g3g43g2g2i5g3g2g3g3h2g3g5g3g2g3g2g2g33g4g1i2g2g4g4g2h1g2g3g3g4g4g3g4g3">Puz-PRE link.</a></div>
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This puzzle is dedicated to my friend Akira, who hates Hashiwokakero puzzles after he was forced to speedsolve them in a ridiculously short amount of time.<br />
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How ridiculous? 100 puzzles in 20 minutes.<br />
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That equates to 12 seconds per puzzle. Maybe Ulrich Voigt might be able to do that on one puzzle or two. But I doubt even he could keep up that pace for a full 20 minutes.<br />
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Anyway, the 3-2-3-2 pattern in the centre is surprisingly common in Japanese-made Hashiwokakero puzzles. In any case, enjoy.</div>
Edderioferhttp://www.blogger.com/profile/14154473591728134113noreply@blogger.com0tag:blogger.com,1999:blog-3143066356339616960.post-3096416998882130892017-01-27T16:52:00.000+00:002017-01-27T16:52:31.128+00:00Rules of HashiwokakeroDraw horizontal and vertical lines (bridges) connecting circles (islands) such that:<br />
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1. Between any two islands, there are at most two such bridges connecting them.<br />
2. Bridges may not cross each other or pass over an island.<br />
3. A number on an island indicates how many bridges connect it to some other island.<br />
4. All islands are bridge-connected; i.e. it is possible to move from any island to any other island by only moving across bridges and islands.<br />
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Below is an example and its answer.<br />
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<a href="http://i.imgur.com/7T6huon.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="172" src="https://i.imgur.com/7T6huon.png" width="320" /></a></div>
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Edderioferhttp://www.blogger.com/profile/14154473591728134113noreply@blogger.com0tag:blogger.com,1999:blog-3143066356339616960.post-66183433942734614632016-09-16T17:39:00.006+01:002017-01-07T16:23:00.899+00:00Puzzle #5<div class="separator" style="clear: both; text-align: center;">
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This is a <a href="http://www.gmpuzzles.com/blog/2013/05/dr-sudoku-prescribes-93-masyu-total/">Total Masyu</a> puzzle, a variant of <a href="http://edderiofer.blogspot.com/2016/09/rules-of-masyu.html">Masyu</a>. In addition to the rules of Masyu, all possible circles have been given; i.e. it is not possible to add any more circles to the grid so that it is consistent with the solution.</div>
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Difficulty: <b>hard</b><br />
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Theme: <b>Clue minimalism and logic.</b></div>
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<a href="http://pzv.jp/p.html?mashu/10/10/000000030000000000000000000c000000">Puz-PRE link.</a> (Note: While a valid solution to this puzzle will be marked as correct, Puz-PRE does not have the "total" constraint programmed in. The solver may incorrectly mark incorrect answers as correct.)</div>
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This is one of the most stunning puzzles I've ever made, I think. The break-in is almost completely original (in that I came up with it and then found that it was already used by <a href="https://jacoblance.wordpress.com/2015/04/08/puzzle-88-masyu-all-givens/">someone else</a>, like two other break-ins I've "discovered"). While this puzzle <i>still</i> isn't MellowMelon-difficulty (it'll take a long while before I get there!), and it doesn't require excessive trial and error, it's definitely not a Total Masyu for the uninitiated.<br />
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<b>EDIT: </b>Twitter user @That_Scar has asked the following question:</div>
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<a href="https://twitter.com/edderiofer">@edderiofer</a> Am I stupid or is this pretty easy? [SOLUTION IMAGE REDACTED]</div>
— ThatScar (@That_Scar) <a href="https://twitter.com/That_Scar/status/776849266476220416">September 16, 2016</a></blockquote>
To this, I respond that I don't consider a logic puzzle to be solved unless one has proven uniqueness of solution. Finding a solution may be easy, but proving that it's unique is the hard part.Edderioferhttp://www.blogger.com/profile/14154473591728134113noreply@blogger.com3tag:blogger.com,1999:blog-3143066356339616960.post-77109298076208914092016-09-16T17:39:00.004+01:002017-02-12T12:19:14.139+00:00Rules of MasyuDraw a single loop through the centres of some cells according to the following rules:<br />
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1. The loop may only travel horizontally or vertically, never diagonally; all turns are right-angled turns. The loop may only turn at the centers of grid cells. The loop may not cross itself or branch off; that is, from any cell centre, there can be only 0 or 2 loop segments extending from it.<br />
2. The loop must pass through every circle.<br />
3. The loop may not turn at a white circle, but must turn at at least one of the adjacent cells in the loop.<br />
4. The loop must turn at a black circle, but may not turn at either of the adjacent cells in the loop.<br />
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Below is an example and its answer.<br />
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<a href="http://i.imgur.com/k3rXovB.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="171" src="https://i.imgur.com/k3rXovB.png" width="320" /></a></div>
<br />Edderioferhttp://www.blogger.com/profile/14154473591728134113noreply@blogger.com0