Masyu

Updated on (created ) — Filed under: 90 List Paper Ported Puzzle loop monoline pearl アセトニトリル
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This is part of a Nikakoku Doppel Pair:

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Thomas Snyder (Dr. Sudoku) shared the first three Total Masyu puzzles at his blog.

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By Jack Lance:

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By Sophie (Edderiofer):

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This Masyu variant was invented by Serkan Yürekli in 2009 and named by Kamer Alyanakyan. Independently, Stingby12 suggested the grey pearl idea, which later on turned out to be equivalent to this established variant.

Thus this implementation contains the separate symbol half-white pearls for deformable white pearls, while normal white pearls are kept undeformable .

By Stingby12:

This set was named "Double Pearl's".

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This variant was first made by Bram de Laat's In and Out puzzle. This and Jamie Hargrove's Masyu (Castle Wall) puzzle,could be transcribed in the future.

By Jack Lance:

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By dohz:

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Anurag Sahay kindly shared these full Masyus:

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By PinkHoodie:

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The earliest version of this genre seems to be by Matúš Demiger, 2014, then named Reverse Masyu.

Teal independently re-created this variant in 2022, naming it better as Fullish Masyu:

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Here are two optional-blacks Masyus by Palmer Mebane (Mellow Mellon):

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By Walker Anderson:

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This variant was created by Prasanna Seshadri in 2014.

By Prasanna Seshadri:

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By Pedro:

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By Palmer Mebane (Mellow Mellon):

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PinkHoodie made a semi-complete Masyu ( a theory driven puzzle where you can make no progress without the variant):

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By Anurag Sahay:

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Anurag Sahay invented Double Masyu in November 2021.

By PinkHoodie:

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This puzzle by PinkHoodie combines the new dual variant with double, a great combo.

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By PinkHoodie:

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The rules of hex masyu follow the convention of the Toketa Magazine vol.11 (2023).

By PinkHoodie:

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By 5381:

This pair is a classic-variant-doppel by 5381, one using the vertigo variant and another just classic rules:

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Myopia arrows can be added to Masyu ましゅ puzzles with great effect:

By PinkHoodie:

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By Anurag Sahay:

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By PinkHoodie:

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By PinkHoodie:

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By PinkHoodie:

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By PinkHoodie:

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By PinkHoodie:

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By PinkHoodie:

hope32 2021-11-09 Thanks dohz for helping track variant origins, going through every puzzle (twice), finding a non-uniqueness, and suggesting the variants be consolidated in a single page. 2023-01-18 thanks to Jack Lance, Jeffrey Bardon (IHNN) for detecting an encoding error in some of the puzzles, now corrected 2023-02-26 thanks to Soni for finding yet another error, now corrected 2023-06-03 The two variants (Total and Deformable) were merged in this single page 2023-06-24 A huge amount of variants was added to this page. Thanks to dohz, Zimodo, Rever, David Millar, Thomas Luo (tluo) for suggestions and Teal for kindly transcribing two puzzles that represent one variant each. 2023-06-25 Fixed a problem with variants interference (dohz) 2023-06-26 Thanks to Walker Anderson for transcribing the Crossing Masyu puzzle! 2023-07-03 Added the Syuma atomic variants - thanks dohz for feedback! 2023-07-04 Thanks to Prasanna Seshadri for transcribing the Syuma puzzle! 2023-07-11 RB Masyu added (ゆき❄ (Yu-ri)) 2023-08-05 Dynasty Masyu added (dohz) 2023-09-05 Castle Wall Masyu puzzle added (dohz) 2023-09-19 Added variants Pentomino and snake-edge (takmu (たくあん)) 2023-10-26 Added a 4-coloured checkerboard grid to Total Masyu (Seren) 2023-12-06 Fixed a regression on the Nurikabe-loop variant (PinkHoodie) 2024-02-21 A classic Masyu ましゅ was made by Anurag Sahay - thank you! 2024-02-23 A semi-complete Masyu ましゅ was made by PinkHoodie - thank you! 2024-02-25 A unequal-lengths Masyu ましゅ was made by Anurag Sahay - thank you! 2024-02-26 The rule panels for Masyu ましゅ were brought to the modern format by Anurag Sahay, who also sent a full puzzle. Thank you! 2024-02-28 Variant hex Masyu ましゅ was added - thanks Jeffrey Bardon (IHNN) for help finding the appropriate ruleset 2024-02-28 Variant double Masyu ましゅ by Anurag Sahay was added 2024-02-29 A double, hex and alternate Masyu ましゅ puzzles were added by PinkHoodie, who also made the variant rule panel for double - thank you! 2024-03-01 Style tweaks to the double variant after feedback from Anurag Sahay 2024-03-07 Two additional hex puzzles were shared by PinkHoodie, one of them for Enigmarch 2024 2024-03-11 A classic-variant-doppel pair was made by 5381, named a "mutation puzzle". The chosen variant is vertigo. 2024-03-29 Anurag Sahay made a 10x0 unequal lengths Masyu ましゅ - thank you! 2024-04-04 Variant dual by Paletron was added. 2024-04-05 A dual,double and a myopia masyu puzzles by PinkHoodie were added. Thank you! 2024-04-12 puzzletters A myopia Masyu ましゅ plus a second classic by Anurag Sahay - thank you. 2024-04-19 puzzletters PinkHoodie sent 2 puzzles using variants kiki and inturnal! 2024-05-18 puzzletters full Masyu ましゅ puzzles were shared by Anurag Sahay and PinkHoodie! 2024-05-19 A regression affecting the dynasty variant, reported by PinkHoodie, was fixed (cause: missing unit test) 2024-05-20 A unit test url sent by PinkHoodie helped correct a regression in the syuma variants (cause: few unit tests and conflicts with a more recent variant) 2024-05-24 puzzletters PinkHoodie sent 1 puzzle using variant dynasty,syuma! 2024-07-19 puzzletters PinkHoodie sent 1 classic - thank you! 2024-09-01 puzzletters PinkHoodie sent 2 puzzles using variants ice,no-crossing and ice,ice-zone-visited,no-crossing! 2024-09-07 puzzletters PinkHoodie sent 5 classics - thank you! 2024-09-07 Masyu RB was fixed (cause: renamed template). Thanks Random 8 for noticing 2024-09-12 A trancription error spotted by Random 8 was corrected by PinkHoodie. Thank you! 2024-09-21 puzzletters PinkHoodie sent 4 classics - thank you! 2024-09-29 puzzletters PinkHoodie sent 2 classics - thank you! 2024-11-16 puzzletters PinkHoodie dispatched 1 Masyu ましゅ (classic) puzzle - gracias! 2024-11-22 A regression detected by Random 8 was corrected (cause: incomplete template file renaming) 2024-12-01 Incorrect highlighting for the fullish,syuma combo, detected by PinkHoodie, was corrected, and unit tests were added. Thank you! 2024-12-07 puzzletters PinkHoodie made an impressive Masyu ましゅ puzzle using variants castle,fullish,syuma,dynasty,alternate and a classic Masyu ましゅ (aprt of the size series)! 2024-12-28 puzzletters PinkHoodie sent 1 Masyu ましゅ (classic) puzzle - grazie! 2025-02-04 Masyu ましゅ page reorganized to align it with the format in other pages. Also, a problem with the rb variant was corrected. 2025-02-05 Subsequent issues noted by PinkHoodie were corrected. 2025-04-10 Removed the introductory variant table, which is not present in other genre pages, and simplified the lateral index, like in Yajilin ヤジリン