(;AB[pr]AB[qr]AB[nr]AB[mr]AB[nq]AB[np]AB[pq]AW[rr]AW[qq]AW[pp]AW[qp]AB[op]AW[mo]AW[mp]AW[mq]AW[lq]AW[lr]C[If black went at A thinking he'd live... What would white do?FORCE]LB[op:A]AW[on]AW[pn]AP[goproblems]
(;W[ms];B[qs]
(;W[os];B[ns]
(;W[or]C[Yup.. The correct move would be P1 instead of P4 for black to live..RIGHT])
(;W[ls];B[or]C[Black'd live..])
(;W[rs];B[or]C[Black'd live..]))
(;W[ns];B[os]C[Black'd live..])
(;W[ls];B[ns]C[Black'd live..]TR[or]TR[os])
(;W[or];B[os]C[Black'd live..])
(;W[rs];B[os]C[Black'd live..]))
(;W[qs];B[ms]
(;W[os];B[or]
(;W[ps];B[rs];W[ss];B[ns]C[Black'd live..])
(;W[rs];B[ps]C[Black'd live..]))
(;W[ps];B[os]C[Black'd live..])
(;W[rs];B[os]C[Black'd live..])
(;W[or];B[os]C[Black'd live..]))
(;W[os]C[Black might consider playing at S1 first... See white oppenning at M1 for the variations.];B[or]C[Black'd live..]TR[ms]TR[ns]MA[qs]MA[ps])
(;W[or]C[Black might consider playing at S1 first... See white oppenning at M1 for the variations.];B[os]C[Black'd live..]TR[ms]TR[qs])
(;W[ns];B[ms]C[Black'd live..]TR[or]TR[os])
(;W[ps];B[qs]C[Black'd live..]TR[os]TR[or])
(;W[rs];B[qs]C[Black'd live..]TR[os]TR[or])
(;W[ls];B[rs]
(;W[qs];B[ps]
(;W[ms];B[rq]C[Black'd live..])
(;W[ns];B[rq]C[Black'd live..])
(;W[os];B[rq]C[Black'd live..])
(;W[or];B[rq]C[Black'd live..])
(;W[sr];B[ms]C[Black'd live..]TR[os]TR[or])
(;W[sq];B[ms]C[Black'd live..]TR[os]TR[or])
(;W[rq];B[ms]C[Black'd live..]TR[os]TR[or]))
(;W[os];B[rq]C[Black'd live..])
(;W[or];B[rq]C[Black'd live..])
(;W[ms];B[rq]C[Black'd live..])
(;W[ns];B[rq]C[Black'd live..])
(;W[ps];B[rq]C[Black'd live..])
(;W[rq];B[ms]C[Black'd live..]TR[os]TR[or])
(;W[sr];B[ms]C[Black'd live..]TR[os]TR[or])
(;W[sq];B[ms]C[Black'd live..]TR[os]TR[or]))
(;W[oq]C[Black might consider playing at S1 first... See white oppenning at M1 for the variations.];B[os]C[Black'd live..]TR[ms]TR[qs])
(;W[no]C[Black might consider playing at S1 first... See white oppenning at M1 for the variations.];B[os]C[Black'd live..]TR[ms]TR[qs])
(;W[oo]C[Black might consider playing at S1 first... See white oppenning at M1 for the variations.];B[os]C[Black'd live..]TR[ms]TR[qs])
(;W[po]C[Black might consider playing at S1 first... See white oppenning at M1 for the variations.];B[os]C[Black'd live..]TR[ms]TR[qs])
(;W[sr];B[os]C[Black'd live..]TR[ms]TR[qs])
(;W[sq];B[os]C[Black'd live..]TR[ms]TR[qs])
(;W[rq];B[os]C[Black'd live..]TR[ms]TR[qs]))