(;GM[1]FF[4]SZ[9]
GN[Mutual damage -- better for b?]
PC[https://senseis.xmp.net/?MutualDamage]AP[GoWiki:2009]
DT[2021-02-08]
C[Diagram from https://senseis.xmp.net/?MutualDamage

Mutual damage -- better for b?]
PL[B]

AB[db][dc][dd][de][cf][ef][eg][eh]
AW[eb][ec][ed][ee][ge][ff][fg][fh]
SQ[db]
LB[ae:b][be:b][ce:b][gf:a][hf:a][if:a]

;B[fi]C[B1]MN[1]
;W[da]C[W2]MN[2]

;SQ[db]
LB[ae:b][be:b][ce:b][gf:a][hf:a][if:a]
)
