(;GM[1]FF[4]SZ[19]
GN[The vital point]
PC[http://senseis.xmp.net/?CompletelyArtificialProblem/Discussion]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?CompletelyArtificialProblem/Discussion

The vital point]
PL[B]

AB[on][pn][qn][rn][oo][ro][so][np][nq][nr][ss]
AW[pp][sp][pq][sq][pr][sr][ps]

;B[rq]C[B1]MN[1]
;W[rp]C[W2]MN[2]
;B[qp]C[B3]MN[3]
;W[rr]C[W4]MN[4]
;B[qq]C[B5]MN[5]
;W[qr]C[W6]MN[6]
;B[qo]C[B7]MN[7]
;W[rs]C[W8]MN[8]

;
)
