% masyu 160 by Otto Janko, http://www.janko.at/Raetsel/Masyu/160.a.htm
masyu
very hard
36 20
.*....o...........o..o....oo..*.....
......oo..oo.......*.o..o.........*.
...o...o.*....o.*....oo..o.o..*.o...
....*........*...o..o....o.o...oo...
*..*...o.....*..o.o...oo...........o
*.o...oo.*.............o..oo...*.*..
....o...o*....*...oo...o.....oo.....
*....oo.........o..o.o....**...o..o.
.oo..oo..o..*.o.*..oo....o......o.o.
.o....o......o........oo....*.......
..*..o....*.....**..**..o.....o....o
...*........**..*......o.......*.*..
..*..o.**........o......*..*..*.....
......*...*.**.......*.*..*..*.*ooo.
.......o...*.*..oo.*..............o.
.oo*..*..........o.....*..oo........
oo.....*.o...o*.........*.*o...o....
...*.....oo......o.*..o.......*ooo.o
..o....*......*...o.*.......oo......
......o...*.*........o..*.*........*
