(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[0.00]
PB[Black to rescue 2 stones]AW[np][op][pp][kq][lq][mq][oq][pr][ps][qs]AB[on][qn][no][lp][mp][qp][nq][qq][nr][qr][rr][rs]
(;)
(;B[pq]C[Black runs short of liberties if this is played first.]
;W[or]
;B[po]
;W[mr])
(;B[or]C[This is the way that reduces a white liberty without reducing any black.]
;W[pq]
;B[po]
;W[mr]
;B[oo]))
