(;GM[1]FF[4]SZ[19]
GN[Failure: ko]
PC[https://senseis.xmp.net/?BeginnerExercise128/Solution]AP[GoWiki:2009]
DT[2024-09-10]
C[Diagram from https://senseis.xmp.net/?BeginnerExercise128/Solution

Failure: ko]
PL[W]

AB[bb][cb][db][bc][dc][cd][dd]
AW[da][eb][gb][ec][ad][bd][ed][ce][de][ee][bf]
LB[ca:a]

;W[ab]C[W1]MN[1]
;B[ac]C[B2]MN[2]
;W[ba]C[W3]MN[3]
;B[aa]C[B4]MN[4]

;LB[ca:a]
)
