(;GM[1]FF[4]AP[Drago:4.22.03]SZ[19]CA[UTF-8]AB[rq][qr][pq][or][pp][qp][op][np][mp][lp][kq][jq][iq]AW[kr][lq][mq][nq][oq][pr][ps][qs][rs]C[Black to play and kill]
(;B[ns]C[This move looks the sort of move to ruin White's shape.];W[mr];B[jr];W[ms];B[ls]
;W[os]C[However White has enough corner liberties to live by playing here.])
(;B[mr]C[This is the killing move.]
(;W[lr];B[nr]
(;W[ms]C[If White plays to capture the three stones..];B[jr]C[...then this stops the other edge eye.];W[os];B[ks];W[ns];B[nr])
(;W[jr]C[White extending does not help the liberties nor the eye-shape.];B[ir];W[ms];B[js])
(;W[rr]C[Note there is no eye in the corner.];B[sr]))
(;W[nr]C[Playing here White quickly dies.];B[lr];W[ns];B[jr])))
