(;GM[1]FF[4]SZ[19]
GN[Third attack: crush 1]
PC[https://senseis.xmp.net/?TripodGroup]AP[GoWiki:2009]
DT[2020-08-20]
C[Diagram from https://senseis.xmp.net/?TripodGroup

Third attack: crush 1]
PL[W]

AB[aa][bb][cb][cc][ad][bd]
AW[ab][ac][dc][ec][gc][cd][be][ce][cg]

;W[db]C[W1]MN[1]
;B[ca]C[B2]MN[2]
;W[ba]C[W3]MN[3]
;B[bc]C[B4]MN[4]

;
)
