Masyu - Two Extra Circles
(Published on 2. June 2020, 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, there are exactly two extra circles. You have to remove those extra circles first so that the result is a uniquely solvable masyu.
Solution code: Row 4 (left-right) and Column 4 (top-down). Use L for cells with a bend in the loop, I for cells with a straight in the loop, and X for cells without loop.
Last changed on -
Solved by dm_litv, CHalb, zorant, cdwg2000, Zzzyxas, pirx, Luigi, zhergan, Rollo, Uhu, HaSe, skywalker, lutzreimer, NikolaZ, rimodech, saskia-daniela, moss, jessica6, sf2l, ropeko, ch1983, Nothere, sandmoppe, Dandelo, amitsowani, ildiko, ManuH, NogBolog, Dotty, ffricke, Realshaggy, uvo, Queteimp, Alex, SPREVVIE, Raistlen, Toastbrot, misko, Joo M.Y, Saskia, Dugong, marsigel, Mark Sweep, Echatsum