(;GM[1]FF[4]SZ[19]
GN[the threat to escape]
PC[http://senseis.xmp.net/?BQM251]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BQM251

the threat to escape]
PL[B]

AB[op][pp][qp][rp][pq][rq][nr][or][rr]
AW[on][qn][no][ro][np][sp][nq][sq][pr][qr][sr]

;B[mr]C[B1]MN[1]
;W[rs]C[W2]MN[2]
;B[qs]C[B3]MN[3]
;W[ps]C[W4]MN[4]
;B[os]C[B5]MN[5]

;
)
