(;GM[1]FF[4]SZ[19]
GN[Book solution:ko]
PC[https://senseis.xmp.net/?GokyoSeimyoVolume3Problem52/Solution]AP[GoWiki:2009]
DT[2023-02-16]
C[Diagram from https://senseis.xmp.net/?GokyoSeimyoVolume3Problem52/Solution

Book solution:ko]
PL[W]

AB[aa][ca][bb][bc][cd][ce][de][cf][df][dg][eg]
AW[cb][db][cc][ec][bd][dd][ee][ef][cg][fg][ch][fh][di]

;W[ag]C[W1]MN[1]
;B[ae]C[B2]MN[2]
;W[da]C[W3]MN[3]

;
)
