Problem: I4-F5
Solution:
 Bag1: I4
  -- -- -- 03 -- 
  00 -- 02 03 04 
  00 01 02 03 04 
  00 01 02 03 04 
  00 01 02 -- 04 
  -- 01 -- -- -- 
 Bag2: F5
  -- -- -- 07 -- 
  05 -- 07 07 07 
  05 05 05 06 07 
  00 05 06 06 06 
  00 00 00 -- 06 
  -- 00 -- -- -- 
#squares: 20
#pieces:
 Bag1: 5
 Bag2: 4
CPU Time: 44.312s
Optimum: yes
Board Size: 30x30
Threads: 16
Choices: 3456336
Conflicts: 1606001
Restarts: 1550
Variables: 25689
Constraints: 89960