(;GM[1]FF[4]SZ[19]
GN[Ko? W3 @ W1, B4 @ WC]
PC[http://senseis.xmp.net/?RTGProblem51/Attempts]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?RTGProblem51/Attempts

Ko? W3 @ W1, B4 @ WC]
PL[W]

AB[on][qn][no][ro][lp][np][rp][kq][nq][qq][kr][nr][pr][rr][ps]
AW[pp][qp][mq][oq][rq][sq][mr][or][ns][os][qs]
CR[qq][qs]
LB[sp:a]

;W[qr]C[W1]MN[1]
;B[rs]C[B2]MN[2]
;W[pq]C[W5]MN[5]

;CR[qq][qs]
LB[sp:a]
)
