(;SZ[19]GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]AW[pq]AW[qq]AW[sq]AW[or]AW[qr]AW[sr]AW[os]AB[op]AB[pp]AB[qp]AB[rp]AB[sp]AB[mq]AB[oq]AB[nr]AB[qs]RU[Japanese]SO[http://gogameguru.com/]C[From go game guru weekly problem 1 - easy problem](;B[rs];W[rr](;B[ns]C[RIGHT])(;B[ps]LB[ns:A]C[Playing this move at A is usually better style because it leaves less bad aji (potential for bad things to happen) on the outside.RIGHT])(;B[pr];W[ps];B[ns];W[ss])(;B[rq];W[ps];B[ns];W[ss]))(;B[rq];W[rr](;B[ns];W[rs](;B[ps];W[pr])(;B[pr];W[ps]))(;B[rs];W[ps])(;B[ps];W[rs]))(;B[ns];W[rs](;B[rq];W[rr](;B[ps];W[pr])(;B[pr];W[ps]))(;B[ps];W[pr])(;B[pr];W[ps]))(;B[ps];W[rs])(;B[pr];W[ps](;B[rq];W[rr])(;B[rr];W[rq])(;B[ns];W[rs](;B[rq];W[rr])(;B[rr];W[rq])))(;B[rr];W[rq](;B[rs];W[ps])(;B[ns];W[rs])(;B[pr];W[rs];B[ns];W[ps])))