Level 1.   X S K J   4 O O 4 
           4 R O D   D O L 2

Level 2.   X S 1 N   8 O 5 O 
           K 3 4 D   D 2 1 3 

Level 3.   8 S 1 D   D O 7 4
           S B 4 G   D O 6 3