(;GM[1]FF[4]SZ[19]
GN[Unfavorable ko]
PC[http://senseis.xmp.net/?TsumegoFromGames33/Attempts]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?TsumegoFromGames33/Attempts

Unfavorable ko]
PL[W]

AB[nq][oq][pq][qq][rq][sq][nr][or][ns]
AW[mp][np][op][pp][qp][rp][sp][mq][mr][pr][ms][os][qs]

;W[rr]C[W1]MN[1]
;B[ps]C[B2]MN[2]
;W[qr]C[W3]MN[3]
;B[sr]C[B4]MN[4]

;
)
