Trying a simple problem for a change. Saw this come up in one of my games. I played as white and lived because of my opponent's mistake, but you can do better!
(;AW[sr]AW[rr]AW[qq]AW[pr]AW[oq]AW[or]AW[os]AB[qs]AW[pp]AB[ns]AB[nr]AB[nq]AB[op]AB[oo]AB[po]AB[qo]AB[qp]AB[rp]AB[sp]AW[rq]AB[sq]C[Black to kill.]AP[goproblems]
(;B[rs]C[Correct. In this position white is dead.RIGHT])
(;B[qr];W[rs];B[pq];W[ps]C[White lives. :(])
(;B[pq];W[rs]C[White lives! D:])
(;B[ps];W[rs]C[White lives! D:]))