(;GM[1]FF[4]SZ[19]
GN[Black gets ko, II - moves 11-13]
PC[http://senseis.xmp.net/?RTGProblem4/Attempts]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?RTGProblem4/Attempts

Black gets ko, II - moves 11-13]
PL[W]

AB[oq][pq][qq][nr][pr][qr][rr][sr][os][ss]
AW[mp][op][pp][qp][rp][lq][nq][rq][kr][mr][ms]

;W[ns]C[W1]MN[1]
;B[qs]C[B2]MN[2]
;W[or]C[W3]MN[3]

;
)
