(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[0.00]
PB[Black to play and rescue 3 stones]AW[ro][lp][qp][rp][kq][mq][nq][qq][rq][or][pr][rr]AB[qm][rn][po][qo][so][mp][np][pp][oq][pq][qr][qs][rs]C[Black to play and rescue 3 stones]
(;B[sr]C[If black fills one of the white liberties...]
;W[ps]C[...White just plays atarri]
;B[ss]
;W[sq]C[Black is doomed.])
(;B[sp]C[All three liberties are the same]
;W[ps])
(;B[nr]C[The trick is to sacriface a stone here to slow white down.]
(;W[ps]C[White here is self-atari now.])
(;W[mr]
(;B[sr]
;W[ns]
;B[sq]
;W[ps]
;B[sp]C[Black now wins the race to capture.])
(;B[sp]C[This is a slightly better liberty to fill as it reduces the
size of ko threats here.]
;W[ns]
;B[sq]
;W[ps]
;B[sr]))
(;W[sr]C[Playing from the corner is too slow for white too.]
;B[os]
;W[ss]
;B[ps])))
