(;GM[1]FF[4]SZ[19]
GN[19x19 Vol. 1. Oki, No. 81]
PC[http://senseis.xmp.net/?SegoeTesujiProblem1]AP[GoWiki:2009]
DT[2010-02-20]
C[Diagram from http://senseis.xmp.net/?SegoeTesujiProblem1

19x19 Vol. 1. Oki, No. 81]
PL[B]

AB[dn][fn][go][ho][dp][pp][dq][eq][mq][dr]
AW[cl][el][ep][gp][ip][fq][kq][er]

;B[hp]C[B1]MN[1]
;W[hq]C[W2]MN[2]
;B[gr]C[B3]MN[3]
;W[fr]C[W4]MN[4]

;
)
