0 ominoes placed.
 0 0 0 0 0
 0 0 0 0 0
 0 0 0 0 0
 0 0 0 0 0
 0 0 0 0 0

Done with "pent-x" 
1 solutions found for 0 pieces.
0 solutions found for 1 pieces.
0 solutions found for 2 pieces.
0 solutions found for 3 pieces.
0 solutions found for 4 pieces.
0 solutions found for 5 pieces.