(;GM[1]FF[4]SZ[19]
GN[Push, extend]
PC[http://senseis.xmp.net/?PreventingEscapeOnTheFirstLine]AP[GoWiki:2009]
DT[2014-06-18]
C[Diagram from http://senseis.xmp.net/?PreventingEscapeOnTheFirstLine

Push, extend]
PL[W]

AB[da][ea][fa][ab][bb][cb][db]
AW[ba][eb][gb][bc][cc][dc][ec][be]
CR[ea][fa]

;W[ga]C[W3]MN[3]
;B[fb]C[B4]MN[4]
;W[fc]C[W5]MN[5]
;B[gc]C[B6]MN[6]
;W[hc]C[W7]MN[7]
;B[gd]C[B8]MN[8]
;W[ib]C[W9]MN[9]

;CR[ea][fa]
)
