Problem: N4-N5
Solution:
 Bag1: N4
  -- 04 
  04 04 
  04 03 
  03 03 
  03 02 
  02 02 
  02 01 
  01 01 
  01 00 
  00 00 
  00 -- 
 Bag2: N5
  -- 06 
  06 06 
  06 05 
  06 05 
  05 05 
  05 01 
  01 01 
  01 00 
  01 00 
  00 00 
  00 -- 
#squares: 20
#pieces:
 Bag1: 5
 Bag2: 4
CPU Time: 6949.834s
Optimum: yes
Board Size: 15x15
Threads: 16
Choices: 272681112
Conflicts: 191839688
Restarts: 109852
Variables: 7692
Constraints: 24931