(;GM[1]FF[4]SZ[19]
GN[Go Seigen's recommendation (II)]
PC[http://senseis.xmp.net/?TwoSpaceExtensionUnobviousAnswers]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?TwoSpaceExtensionUnobviousAnswers

Go Seigen's recommendation (II)]
PL[B]

AB[oc][qd][cf][ci][qp][fq][iq][pq]
AW[dc][cd][dg][ck][qk][qn][dp][dq]
LB[bh:a]

;B[df]C[B1]MN[1]
;W[cg]C[W2]MN[2]
;B[bf]C[B3]MN[3]
;W[di]C[W4]MN[4]
;B[bg]C[B5]MN[5]

;LB[bh:a]
)
