(;GM[1]FF[4]SZ[19]
GN[can black live unconditionally?]
PC[http://senseis.xmp.net/?BQM251]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BQM251

can black live unconditionally?]
PL[B]

AB[op][pp][qp][rp][pq][rr]
AW[on][qn][no][ro][np][nq][pr][qr]
LB[sp:d][sq:a][qs:c][rs:b]

;B[or]C[B1]MN[1]
;W[sr]C[W2]MN[2]

;LB[sp:d][sq:a][qs:c][rs:b]
)
