(;GM[1]FF[4]SZ[19]
GN[corner]
PC[https://senseis.xmp.net/?GokyoShumyoSection2Problem4/Attempts]AP[GoWiki:2009]
DT[2023-01-06]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection2Problem4/Attempts

corner]
PL[W]

AB[db][dc][bd][cd]
AW[eb][ec][dd][ce][de][cg]
LB[aa:b][cc:a]

;W[ad]C[W1]MN[1]
;B[bb]C[B2]MN[2]

;LB[aa:b][cc:a]
)
