(;GM[1]FF[4]SZ[19]
GN[White mistake]
PC[https://senseis.xmp.net/?GokyoShumyoSection2Problem29/Solution]AP[GoWiki:2009]
DT[2023-01-10]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection2Problem29/Solution

White mistake]
PL[W]

AB[cc][ec][cd][dd][be]
AW[db][fc][hc][bd][fd][ce][ee][cf][ch]

;W[eb]C[W1]MN[1]
;B[ad]C[B2]MN[2]
;W[bf]C[W3]MN[3]
;B[bc]C[B4]MN[4]

;
)
