% masyu 90 by Halflength Sleeve, http://www.janko.at/Raetsel/Masyu/090.a.htm
masyu
medium
18 10
.*.....*.o...*.o..
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*....o.o..*.o....o
..o...............
......o....o.o.*..
...o.o............
..*...*.o*...*..o*
...*.o......*.....
