(;GM[1]FF[4]AP[Drago:4.22.03]SZ[19]CA[UTF-8]AW[rr][rq][qp][qo][op][np][mp][lp][lq][kr][jq][pr][or][nr]AB[ps][qr][qq][pq][oq][nq][mq][mr][lr]C[Black to play and live.]
(;B[ns]C[Incorrect.];W[ls];B[os]
;W[or]C[Black cannot make two eyes.])
(;B[ls]C[Correct];W[ns]
(;B[ms]C[Black has enough liberties to play here and the group lives.])
(;B[qs]C[This is a mistake as now the group dies.];W[os])))
