(;GM[1]FF[4]SZ[19]
GN[Moves 12 to 21]
PC[http://senseis.xmp.net/?PushingFromBehind]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?PushingFromBehind

Moves 12 to 21]
PL[W]

AB[cd][qd][pi][nm][om][qn]
AW[ol][pl][cp][pp][nq]

;W[nl]C[W1]MN[1]
;B[mm]C[B2]MN[2]
;W[ml]C[W3]MN[3]
;B[lm]C[B4]MN[4]
;W[ll]C[W5]MN[5]
;B[km]C[B6]MN[6]
;W[kl]C[W7]MN[7]
;B[jm]C[B8]MN[8]
;W[jl]C[W9]MN[9]
;B[il]C[B10]MN[10]

;
)
