(;GM[1]FF[4]SZ[8:19]
GN[Solution on goproblems.com is wrong!]
PC[https://senseis.xmp.net/?KyuExercise22/Attempts]AP[GoWiki:2009]
DT[2022-01-11]
C[Diagram from https://senseis.xmp.net/?KyuExercise22/Attempts

Solution on goproblems.com is wrong!]
PL[B]

AB[db][eb][fc][dd][ed][ce][bf][cf][bh]
AW[ab][cb][dc][bd][cd][be][af]
CR[af]
LB[bb:a][ac:c][bc:b][ad:d]

;B[ba]C[B1]MN[1]
;W[ca]C[W2]MN[2]
;B[ae]C[B3]MN[3]
;W[cc]C[W4]MN[4]

;CR[af]
LB[bb:a][ac:c][bc:b][ad:d]
)
