(;GM[1]FF[4]SZ[19]
GN[Variation at move 14]
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 14]
PL[W]

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][dr]
LB[br:a]

;W[an]C[W1]MN[1]
;B[cr]C[B2]MN[2]
;W[bq]C[W3]MN[3]
;B[cp]C[B4]MN[4]

;LB[br:a]
)
