Problem: P5-W5-I4
Solution:
 Bag1: P5
  -- -- -- -- 03 
  -- 01 01 03 03 
  01 01 01 03 03 
  00 00 02 02 02 
  00 00 02 02 -- 
  00 -- -- -- -- 
 Bag2: W5
  -- -- -- -- 05 
  -- 04 04 05 05 
  04 04 05 05 02 
  04 00 00 02 02 
  00 00 02 02 -- 
  00 -- -- -- -- 
 Bag3: I4
  -- -- -- -- 08 
  -- 06 02 07 08 
  00 06 02 07 08 
  00 06 02 07 08 
  00 06 02 07 -- 
  00 -- -- -- -- 
#squares: 20
#pieces:
 Bag1: 4
 Bag2: 4
 Bag3: 5
CPU Time: 76.280s
Optimum: yes
Board Size: 30x30
Threads: 16
Choices: 3254280
Conflicts: 1421180
Restarts: 1240
Variables: 42653
Constraints: 144403