(;GM[1]FF[4]SZ[19]
GN[Forcing sequence]
PC[http://senseis.xmp.net/?BQM304]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BQM304

Forcing sequence]
PL[B]

AB[qc][bd][pd][cf][qf][ch][ci][dk][qk][dl][cn][po][bp][pq]
AW[pb][cc][fc][nc][dd][kd][df][dh][ej][dp][jp][mp][cq][fq]
LB[qh:c][ok:d][qm:c][kq:b]

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

;LB[qh:c][ok:d][qm:c][kq:b]
)
