% masyu 279 by Grant Fikes, http://www.janko.at/Raetsel/Masyu/279.a.htm
masyu
medium-
17 17
.......**.....oo.
oo.oo.....*o.....
......*o.....o*..
...oo......*o....
...*o..........oo
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..*o*.*oo.*.**o..
....o.o.*.*.o.o..
..*oo.o.*.o.o.o..
..o...o.o.o.*.o..
..**o.*o*.*.o**..
.................
........**...**..
*o..oo......**...
.oo....*o......o*
.................
*o..oo....o*.....
