(;AB[pd]AB[pc]AB[qd]AB[rd]AB[od]AB[ne]AB[me]AB[ld]AB[mc]AB[kd]AB[kc]AW[lc]AW[lb]AW[kb]AW[jc]AW[jd]AW[ke]AW[kf]AW[lg]AW[ng]AW[of]AW[oe]AW[qf]AW[re]AW[nd]AW[nc]AW[oc]TR[nc]TR[nd]TR[oc]C[Balck to capture the marked stones]AP[goproblems]
(;B[ob];W[nb]
(;B[mb];W[ma]
(;B[md];W[na]
(;B[oa];W[la];B[jb]C[RIGHT])
(;B[la];W[ka];B[oa];W[la];B[jb]C[RIGHT])
(;B[jb];W[pb];B[qb];W[oa];B[ka];W[la];B[ib];W[nf]))
(;B[na];W[md])
(;B[pb];W[md])
(;B[jb];W[md])
(;B[la];W[md]))
(;B[md];W[mb])
(;B[pb];W[mb])
(;B[jb];W[mb]))
(;B[mb];W[md]
(;B[le];W[nb])
(;B[nb]
(;W[ob];B[le]
(;W[ma])
(;W[na]))
(;W[le])))
(;B[nb];W[ob]
(;B[pb];W[mb]
(;B[md];W[na])
(;B[na];W[md]
(;B[le];W[oa])
(;B[oa];W[le]))
(;B[oa];W[na];B[md];W[nb]))
(;B[mb];W[md];B[le]
(;W[ma])
(;W[na]))
(;B[oa];W[mb]
(;B[pb];W[na];B[md];W[pa])
(;B[md];W[na];B[pb]
(;W[pa])
(;W[nb]))
(;B[na];W[md];B[pb];W[le])))
(;B[pb];W[md];B[le];W[mb]))