(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2] RU[Japanese]SZ[13]KM[0.00] PW[White]PB[Black]AW[cj][dj][ej][ek][fk][hk][el][gl][jl][kl][em][fm][km]AB[eg][eh][jh][bi][ci][di][ei][fi][hi][aj][bj][jj][ak][ck][dk][kk][al][bl][ll][cm][dm][lm]TR[km][lm]C[B plays the marked stone and W hastily responds with his own marked stone. How should B punish?] (;B[il]CR[il] ;W[ik]CR[ik] ;B[jk]CR[jk]C[RIGHT]C[Black captures three stones.]) (;B[jk]CR[jk] ;W[il]CR[il]) (;B[lk]CR[lk]C[No effect on white]) (;B[ik]CR[ik] ;W[il]CR[il]) (;B[im]CR[im] ;W[ik]CR[ik]) (;B[jm]CR[jm] ;W[im]CR[im] (;B[jk]CR[jk] ;W[ik]CR[ik]) (;B[ik]CR[ik] ;W[il]CR[il]) (;B[il]CR[il] ;W[ik]CR[ik])))