(;AB[ks]AB[jr]AB[jq]AB[jp]AB[ko]AB[lo]AB[ln]AB[mm]AB[nm]AB[om]AB[pm]AB[qm]AB[rm]AB[sm]AB[lp]AB[mp]AB[nq]AB[nr]AB[mr]AB[ms]AB[os]AW[js]AW[is]AW[ir]AW[iq]AW[ip]AW[io]AW[jo]AW[jn]AW[kn]AW[mo]AW[no]AW[nn]AW[np]AW[oq]AW[or]AW[pq]AW[qq]AW[qp]AW[pp]AW[po]AW[pn]AW[rn]AW[ro]AW[sn]AW[rr]AW[rs]AW[rp]AW[kr]C[White attacked, defend yourself. What is on the rest of the board will not influence this pozition]AW[ps]AB[ns]AP[goproblems] (;B[kq] (;W[ls] (;B[lr];W[ks]C[Lost only 4 points this way.RIGHT]) (;B[lq]C[You lost 5 points in gote.]) (;B[pr];W[lq] (;B[kp];W[qr]) (;B[lr];W[mq]) (;B[qs];W[kp]) (;B[mq];W[kp])) (;B[qs];W[lq] (;B[kp];W[qr]) (;B[lr];W[mq]) (;B[pr];W[kp]) (;B[mq];W[kp])) (;B[mq]C[That move costs you a point. Now White can take another point away at M2 or just tenuki.])) (;W[lr];B[lq];W[ls];B[ks]C[White cannot play like this of course.RIGHT])) (;B[ls];W[lq] (;B[kp];W[mq]C[]) (;B[mq];W[kp]C[Snapback. In fact this is the position that inspired the problem. This is much worse for Black than the correct solution.]MA[jp]MA[jq]MA[jr]) (;B[kq];W[kp]) (;B[lr];W[mq])) (;B[lr]C[] (;W[kq] (;B[kp];W[ls] (;B[pr] (;W[ks] (;B[qs];W[lq] (;B[mq]C[There is no territory left, but at least you took 4 points away from White.RIGHT]) (;B[ps];W[mq])) (;B[lq];W[qr]C[There is hardly any territory left.])) (;W[qr];B[ks]C[As the rest of the board does not influence the problem, White has no ko threat and loses the ko. White will not play like this.RIGHT])) (;B[lq];W[ks]C[There's hardly any territory left.])) (;B[ls];W[kp]) (;B[lq];W[kp]) (;B[pr];W[kp]) (;B[qs];W[kp])) (;W[ls] (;B[qs];W[lq] (;B[pr];W[kp]) (;B[kq];W[mq]) (;B[kp];W[mq]) (;B[ks];W[kq] (;B[kp];W[ls] (;B[mq];W[ks];B[pr]C[You took 4 points away from White.RIGHT]) (;B[pr];W[ks] (;B[ps];W[mq]) (;B[mq]C[4 points to Black.RIGHT]))) (;B[pr];W[kp]) (;B[mq];W[kp])) (;B[mq];W[kq] (;B[kp];W[ks];B[pr]C[You took 4 points away from White.RIGHT]) (;B[pr];W[kp]))) (;B[pr];W[lq] (;B[ks];W[kq] (;B[kp];W[ls] (;B[mq];W[ks];B[qs]C[4 points to Black.RIGHT]) (;B[qs];W[ks] (;B[ps]) (;B[mq]C[4 points to Black.RIGHT]))) (;B[qs];W[kp]) (;B[mq];W[kp]) (;B[ls];W[mq])) (;B[mq];W[kq] (;B[ks];W[kp]) (;B[kp];W[ks];B[qs]C[4 points to Black.RIGHT]) (;B[qs];W[kp])) (;B[qs];W[kp]) (;B[kp];W[mq]) (;B[kq];W[mq])) (;B[kq];W[ks]C[Lost only 4 points this way.RIGHT]) (;B[lq];W[kq] (;B[kp];W[ks]C[There's hardly any territory left.]) (;B[ks];W[kp])))) (;B[lq];W[kq] (;B[kp];W[ls]) (;B[lr];W[kp])))