webpbn.org #1: Demo Puzzle from Front Page
Copyright 2004 by Jan Wolter
#d
   0:   #FFFFFF   white
   g:X  #000000   black
: rows
2g
2g 1g
1g 1g
3g
1g 1g
1g 1g
2g
1g 1g
1g 2g
2g
: columns
2g 1g
2g 1g 3g
7g
1g 3g
2g 1g