(;AW[rq]AW[sq]AW[qq]AW[pq]AW[oq]AW[or]AW[os]AB[ns]AB[nr]AB[nq]AB[np]AB[op]AB[pp]AB[qp]AB[rp]AB[sp]LB[lq:T]C[As the ko master, what's the best Black can get here? Tenuki at M3 if you think it's a waste of time...]AB[sr]AP[goproblems] (;B[qr];W[rr];B[rs]C[Well done! No way to avoid the ko! :)RIGHT]) (;B[rr];W[qr]C[:(]) (;B[rs] (;W[qr]C[Only leads to seki! :(]TR[qs]TR[ps]) (;W[rr];B[qr]C[Would lead to ko but Black's the ko master...]) (;W[qs];B[qr];W[rr];B[ps];W[ss]C[Would lead to a ko but Black's the ko master...]MA[sr])) (;B[qs];W[rs]C[:(]) (;B[ss]C[Great... Now white has an extra prisoner, unconditional life... Ohh yea and sente! ;)]) (;B[pr];W[qs]C[:(]) (;B[ps];W[rs]C[:(]) (;B[lq]C[Black can get a ko! :(]))