(;AP[goproblems]AW[is]AW[ir]AW[iq]AW[ip]AB[js]AB[jr]AB[jq]AB[kp]AB[lp]AB[lq]AB[lr]AB[ms]AW[mr]AW[mq]AW[ks]AW[mp]AW[mo]AW[lo]AW[ko]AW[jp]AW[or]C[Can black live?](;B[kr]C[];W[ns]C[Yes, white can't pushRIGHT](;B[ls]C[RIGHT])(;B[nq];W[ls];B[ms];W[ls]))(;B[ls];W[kr]C[No, this is mistake. Black can't make 2 eyes at now.])(;B[nr];W[ls](;B[kr];W[ls];B[ks];W[nq])(;B[ns];W[nq];B[kr];W[ls])))