Talk:SKULL-8/@comment-25299801-20130628133634/@comment-4642998-20130628171844

Only Skull-6 left

Skull 4 = Skull 5 + Skull 3 assembled [4 = (5+3) / 2]

Skull 8 = Skull 7 + Skull 9 assembled [8 = (7+9) / 2]

=> Skull 6 = Skull 11 + Skull 1 [6 = (11+1) / 2]