(;GM[1]
FF[4]
AP[Hibiscus:2.1]
SZ[11]
ST[3]
;AB[ag][ai][bg][bh][cb][cc][ci][da][dc][dg][di][ec][eg][fc][fd][fe][fg][fh][gd][gf][gh][hf][hh][ih][je][jg][jh][ke][kg]
AW[aj][bi][bj][cj][db][dj][eb][eh][ei][fb][ff][fi][gb][gc][ge][hd][he][hj][ib][ic][ie][ii][jd][ji][kd][kh][ki]
PL[B]
C[Black to play and win!]
(;B[gj]
;W[gi]
;B[hi]
;W[ij]
(;B[ej]
C[Key move!]
;W[fj]
;B[dh]
;W[gk]
;B[if]
;W[ea]
;B[ca]
;W[ah]
C[White starts the ko but...]
(;B[hc]
;W[hb]
;B[ai]
;W[jf]
;B[kf]
;W[ah]
;B[fk]
;W[ek]
C[Black had more threats and wins the game! (Take the
ko)]
;B[ai]
C[RIGHT]
)(;B[fk]
;W[ek]
;B[ai]
;W[jf]
;B[kf]
;W[ah]
;B[hc]
;W[hb]
C[Black had more threats and wins the game! (Take the
ko)]
;B[ai]
C[RIGHT]
))(;B[dh]
;W[ej]
;B[if]
;W[ea]
;B[ca]
;W[ah]
;B[hc]
;W[hb]
;B[ai]
;W[jf]
;B[kf]
;W[ah]
C[Almost there but not good enough. White wins the ko
and the game!]
))(;B[gi]
;W[gj]
C[Bad style leads to a loss....]
;B[if]
;W[dh]
;B[ch]
;W[ea]
;B[ca]
;W[ah]
C[White wins the game without winning the ko!]
)(;B[dh]
;W[gj]
;B[if]
;W[ea]
;B[ca]
;W[ah]
;B[hc]
;W[hb]
;B[ai]
;W[jf]
;B[kf]
;W[ah]
C[Better style leads to improvment but not good
enough. White wins the ko and the game!]
))