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

Ko]
PL[W]

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

;W[ga]C[W1]MN[1]
;B[gb]C[B2]MN[2]
;W[ea]C[W3]MN[3]

;CR[fa]
)
