(;GM[1]FF[4]SZ[5]
GN[Efficient perfect play]
PC[https://senseis.xmp.net/?PassFightsInUltimateGo]AP[GoWiki:2009]
DT[2020-05-28]
C[Diagram from https://senseis.xmp.net/?PassFightsInUltimateGo

Efficient perfect play]
PL[B]

AB[ba][ca][da][ea][ab][bb][cb][dc][ec]
AW[ac][bc][cc][ad][cd][dd][ed][be][de]

;W[ee]C[W2]MN[2]
;B[db]C[B3]MN[3]
;W[ce]C[W4]MN[4]

;
)
