Pull guide C = column R = row (top 1 bottom 3 middle 2) C1 R1— C2 R1, C3 R1 C1 R2— C4 R2, C1 R3 C4 R3— C3 R3, C3 R2, C2 R2 C1 R1— C2 R1, C3 R1
C2a
