Logic Masters Deutschland e.V.

2021 Unpainted Masyu

(Published on 4. January 2021, 07:00 by athin)

Rules of Masyu:
  • Make a single loop with lines passing through the centers of cells, horizontally or vertically. The loop never crosses itself, branches off, or goes through the same cell twice.
  • Lines must pass through all cells with black and white circles.
  • Lines passing through white circles must pass straight through its cell, and make a right-angled turn in at least one of the cells next to the white circle.
  • Lines passing through black circles must make a right-angled turn in its cell, then it must go straight through the next cell (till the middle of the second cell) on both sides.

The standard Masyu rules apply. However, paint some white circles to black such that the Masyu will be uniquely solvable and:

  • Exactly 2 of 11 white circles on the left forming '2' should be painted black.
  • Exactly 0 of 12 white circles on the middle-left forming '0' should be painted black.
  • Exactly 2 of 11 white circles on the middle-right forming '2' should be painted black.
  • Exactly 1 of 11 white circles on the right forming '1' should be painted black.

Solution code: For every row from top to bottom enter the number of cells with a bend in the loop. Only use the last digit for two-digits number.

Last changed on -

Solved by H1324851344, karen_birgitta, jessica6, saskia-daniela, cdwg2000, MrWutki, Dandelo, Jesper, Nusi, Statistica, ManuH, ropeko, Uhu, CJK, CHalb, Raistlen, Rollo, NikolaZ, adam001, smckinley, karzym, Zzzyxas, Lizzy01, Zoidzerg, Toastbrot, bob, sandmoppe, rimodech, skywalker, zorant, Alex, Matt, misko, moss, GrabeR, Joo M.Y, FzFeather, supertinito10, Exodust, ildiko, ffricke, Mark Sweep, Echatsum, jkuo7
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Comments

on 7. January 2021, 14:57 by glum_hippo
Penpa link: https://git.io/JLxOc

on 5. January 2021, 13:04 by CHalb
Great! Athin, I've enjoyed many of your puzzles and especially this one. I have a special affection to unpainted (aka variable) Masyus and this one adds a fine new twist. Thanks a lot!

Difficulty:2
Rating:94 %
Solved:44 times
Observed:5 times
ID:000537

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