(;GM[1]FF[4]SZ[19]
GN[Moves 21 to 23]
PC[http://senseis.xmp.net/?BQM250/Discussion]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BQM250/Discussion

Moves 21 to 23]
PL[B]

AB[oc][qd][dm][dn][qn][ep][cq][dq][hq][pq]
AW[dc][qg][qj][cl][cm][bo][cp][bq][jq][mq]

;B[ce]C[B1]MN[1]
;W[ch]C[W2]MN[2]
;B[dd]C[B3]MN[3]

;
)
