(;C[classic tsumego was created at 1347,china.white first ,aliveCHOICE]AW[pb]AW[pc]AW[od]AW[nd]AW[md]AW[lc]AW[lb]AW[ka]AB[kb]AB[kc]AB[ld]AB[ke]AB[me]AB[ne]AB[oe]AB[pd]AB[qc]AB[qb]AB[qe]AB[ja]AB[ib]AP[goproblems] (;W[nb];B[pa] (;W[na];B[la];W[nc]C[RIGHT]) (;W[nc];B[ob];W[oc];B[oa]) (;W[oa];B[oc];W[ob];B[la] (;W[nc];B[mb];W[mc];B[ma]) (;W[ma];B[mc] (;W[mb];B[nc]) (;W[nc];B[mb])) (;W[mb];B[nc];W[mc];B[ma])) (;W[ob];B[la];W[ma];B[mc];W[mb];B[nc])) (;W[ob];B[mc] (;W[mb];B[nc];W[oc];B[pa] (;W[oa];B[la]) (;W[nb];B[la]) (;W[la];B[na])) (;W[nc];B[mb])))