(;GM[1]FF[4]SZ[19]
GN[Variation at move 15]
PC[http://senseis.xmp.net/?GokyoShumyoSection1Problem52/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection1Problem52/Solution

Variation at move 15]
PL[B]

AB[dm][em][cn][en][ao][co][do][fo][bp][cq][ar][bs]
AW[bl][cl][dl][el][am][cm][fm][bn][fn][bo][go][ap][aq][dq][fq][br][dr]
CR[br]

;B[bq]C[B1]MN[1]
;W[cr]C[W2]MN[2]

;CR[br]
)
