github.com/joshprzybyszewski/masyu@v0.0.0-20230508015604-f31a025f6e7e/puzzles (about) 10x10_easy.txt 10x10_hard.txt 10x10_medium.txt 15x15_easy.txt 15x15_hard.txt 15x15_medium.txt 20x20_easy.txt 20x20_hard.txt 20x20_medium.txt 25x25_easy.txt 25x25_hard.txt 25x25_medium.txt 30x30_hard.txt 35x35_hard.txt 40x40_hard.txt 6x6_easy.txt 8x8_easy.txt 8x8_hard.txt 8x8_medium.txt