(;GM[1] FF[4] AP[Hibiscus:2.1] SZ[13] ST[3] ;AB[bb][bk][cb][cc][cj][ck][dd][dh][di][dl][ec][ed][ee][ei][ek][fb][fc][fh][fk][gb][gd][ge][gf][gl][hf][hh][hj][hl][id][if][ij][ik][il][im][jf][jg][jh][jj][ke][ki][ld][le][li][lm] AW[ab][ac][bc][be][bi][bj][cd][ch][ci][dc][de][df][dg][ef][fe][ff][fg][fi][fj][gg][gh][gi][gk][hb][hc][hd][he][hg][hi][hk][ie][ii][jc][je][ji][jk][jl][jm][kd][kj][kl][lc][lj][ll] PL[B] C[Black to win. Please play the the moves in order of decreasing value. White has no komi.] ;B[mj] MN[1] ;W[mk] ;B[mi] (;W[lk] (;B[kb] (;W[kc] (;B[ha] ;W[ia] ;B[ga] ;W[ib] ;B[mc] ;W[mb] ;B[md] ;W[lb] (;B[ak] (;W[aj] ;B[gj] ;W[ba] (;B[da] ;W[ej] ;B[dj] ;W[eh] ;B[ih] C[RIGHT Black wins by 1 point.] )(;B[db] C[Sorry, but you've just suffered a half point loss.] ))(;W[gj] C[If white plays here...] ;B[ai] C[black can play here in sente!] ;W[ah] ;B[aj] ;W[bg] ))(;B[aj] ;W[ai] ;B[ak] C[Black has won a point but lost sente.] ))(;B[mc] ;W[mb] ;B[md] ;W[lb] ;B[ha] ;W[ia] ;B[ga] ;W[ib] ;B[ak] ;W[aj] ;B[gj] ;W[ba] ;B[da] ;W[ej] ;B[dj] ;W[eh] ;B[ih] C[RIGHT Black wins by 1 point.] ))(;W[lb] ;B[kc] ;W[jd] ;B[mb] ;W[jb] ;B[mc] ;W[ka] ))(;B[ha] ;W[ia] ;B[ga] ;W[kb] C[Black lost points here.] )(;B[mc] ;W[mb] ;B[md] ;W[lb] C[Black lost points here.] ))(;W[ak] ;B[lk] ;W[kk] ;B[ml] C[This ko is too dangerous to play for white.] ))