Problem: P5-L5-Q4
Solution:
 Bag1: P5
  03 03 
  03 03 
  02 03 
  02 02 
  02 02 
  01 01 
  01 01 
  01 00 
  00 00 
  00 00 
 Bag2: L5
  05 05 
  02 05 
  02 05 
  02 05 
  02 02 
  04 04 
  04 00 
  04 00 
  04 00 
  00 00 
 Bag3: Q4
  03 03 
  03 03 
  07 07 
  07 07 
  06 06 
  06 06 
  01 01 
  01 01 
  00 00 
  00 00 
#squares: 20
#pieces:
 Bag1: 4
 Bag2: 4
 Bag3: 5
CPU Time: 113.108s
Optimum: yes
Board Size: 30x30
Threads: 16
Choices: 3921123
Conflicts: 1451360
Restarts: 1244
Variables: 44780
Constraints: 159703