P P B R B

P R B B B

B R R R B

B R R R B

B G G B B

##</code><code>##

P P|B|R|B
 +-+ +-+
P|R|B B B
-+ +---+
B|R R R|B
 |     |
B|R R R|B
 +---+-+
B|G G|B B

##</code><code>##

   | | | 
 +-+ +-+
 | |     
-+ +---+
 |     | 
 |     |
 |     | 
 +---+-+
 |   |