(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2] RU[Japanese]SZ[19]KM[0.50]TM[] AW[qn][so][rp][sp][lq][mq][qq][nr][rr]AB[rn][sn][qo][ro][np][pp][qp]C[Black to move!] (;B[pr]CR[pr] (;W[pq]CR[pq] (;B[oq]CR[oq] ;W[or]CR[or] (;B[rq]CR[rq] ;W[qr]CR[qr] (;B[sr]CR[sr]C[RIGHT CHOICE]) (;B[sq]LB[sr:A]CR[sq]C[A is better!])) (;B[qr]CR[qr] ;W[rq]CR[rq] ;B[rs]CR[rs] ;W[ps]CR[ps]C[Black is a liberty short])) (;B[sr]CR[sr] ;W[rq]CR[rq] ;B[oq]CR[oq] ;W[or]CR[or] ;B[qr]CR[qr] ;W[ps]CR[ps])) (;W[qr]CR[qr] ;B[sr]CR[sr] ;W[pq]CR[pq] ;B[oq]CR[oq] ;W[or]CR[or] ;B[rq]CR[rq]C[RIGHT CHOICE])) (;B[pq]CR[pq] ;W[pr]CR[pr]) (;B[oq]CR[oq] ;W[pr]CR[pr] ;B[or]CR[or] ;W[os]CR[os]C[This is not good enough]) (;B[rq]CR[rq] ;W[sq]CR[sq] ;B[pr]CR[pr] ;W[qr]CR[qr] ;B[or]CR[or]C[This is not as good as the solution]) (;B[sr]CR[sr] ;W[rq]CR[rq] ;B[pr]CR[pr] ;W[pq]CR[pq] ;B[oq]CR[oq] ;W[or]CR[or] ;B[qr]CR[qr] ;W[ps]CR[ps]) (;B[or]CR[or] ;W[oq]CR[oq] ;B[pr]CR[pr] ;W[pq]CR[pq] ;B[nq]CR[nq] ;W[mr]CR[mr] (;B[qr]CR[qr] ;W[rq]CR[rq] ;B[rs]CR[rs] ;W[os]CR[os]) (;B[rq]CR[rq] ;W[sq]CR[sq] ;B[qr]CR[qr] ;W[qs]CR[qs])))