% kuromasu 260 by Otto Janko, http://www.janko.at/Raetsel/Kuromasu/260.a.htm
kuromasu
unknown
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.2..7........c........b............7
...8..b.........6....7....4.......4.
..3........ca...........f......c....
b..a...d..........e....78......5....
..4......c...b.6...6....7....a......
.75......p......l......u........a7.d
b.......c...................9...b..g
..........4.g..........e.......f...j
.3....9..........8......5.....6.....
..a3..........g.....a.....d.g..a....
....d..a.c.....7.....i..........af..
.....d.....i......v..........k....q.
6...9.......l..........d.a..........
b..a...7...................7.......d
6.eb........g......e......b......c4.
......7....b....c...d.i...a......i..
....2......ci....7..........f...5..3
....6......k...........gk........f..
.4.......8....6....9.........7..9...
5............6........8........3..2.
