Masyu (Deformable) by JinHoo Ahn
This is a bonus Sunday puzzle for Valentine’s Day, and one more puzzle to conclude a full week of puzzles from JinHoo Ahn.
or solve online (using our beta test of Penpa-Edit tools in linex mode where left click+drag draws lines and right click marks X’s)
Theme: Valentine
Author/Opus: This is the 18th puzzle from our contributing puzzlemaster JinHoo Ahn.
Rules: Standard Masyu rules. Also, some white circles may be shaded to become black circles. (Stylistically, here the white circles are white with red borders and the black circles are filled, red circles.)
Difficulty: 4 stars
Time Standards (highlight to view): Grandmaster = 3:30, Master = 8:00, Expert = 16:00
Solution: PDF
Note: Follow this link for other Masyu variations and this link for classic Masyu. If you are new to this puzzle type, here are our easiest Masyu to get started on. More Masyu puzzles can be found in The Art of Puzzles.
I found this a bit difficult to solve in penpa due to the shapes being “in front of lines” and not “behind lines”- here’s a quick comparison image I made a last month: https://cdn.discordapp.com/attachments/379130621424828416/797210708835565578/unknown.png
Thanks for the feedback — I’ve updated the link to now be “behind lines” and put it into our style guide for Masyu on Penpa-edit so we will use this more solver-friendly mode in the future.