matrix field=11 rows=16 cols=16
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  0  0  0  0  0 10  0  0  0  0  0  0  0  0  0  0
  0  0  0  0 10  0  0  0  0  0  0  0  0  0  0  0
  0  0  0  0  0  0  0  0 10  0  0  0  0  0  0  0
  0  0  0  0  0  0  0  0  0 10  0  0  0  0  0  0
  0  0  0  0  0  0 10  0  0  0  0  0  0  0  0  0
  0  0  0  0  0  0  0 10  0  0  0  0  0  0  0  0
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  4  4  8  8  2  2  0  2  0  2  1  1  0  1  0  0
  8  8  7  7  8  8  5  9  5  9  5  0  1  5  0  0
  0  0  0  0  0  0  0  0  0  0 10  0  0  0  0  0
  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0 10
  0  0  0  0  0  0  0  0  0  0  0  0  0  0 10  0