(;AB[qc]AB[qb]AB[rd]AB[pd]AB[od]AB[nd]AB[md]AB[lc]AW[mc]AW[nc]AW[pc]AW[pb]AW[qd]AW[qe]AW[qf]AW[of]AW[me]AW[le]AW[ld]TR[md]TR[nd]TR[od]TR[pd]C[black to save the marked stones]AP[goproblems]
(;B[mb];W[nb]
(;B[na]
(;W[lb]
(;B[ob];W[kc]
(;B[oc]C[RIGHT])
(;B[pa];W[lc];B[oc]C[RIGHT]))
(;B[pa];W[ob]
(;B[oa];W[kc])
(;B[kc];W[ma])
(;B[ma]
(;W[la])
(;W[kc];B[oa];W[lc])))
(;B[kc];W[ma])
(;B[ma];W[kc])
(;B[oa];W[kc])
(;B[oc];W[ob]
(;B[pa];W[ma])
(;B[ma];W[kc])
(;B[kc];W[ma])))
(;W[ob];B[lb];W[ne]
(;B[pa];W[pe];B[oa];W[oe];B[oc]C[RIGHT])
(;B[oa];W[pe];B[pa];W[oe];B[oc]C[RIGHT])))
(;B[oc];W[ob]
(;B[lb];W[ne];B[pa];W[pe];B[na];W[oe])
(;B[na];W[lb]
(;B[pa];W[ma])
(;B[ma];W[kc])
(;B[kc];W[ma])))
(;B[ob];W[oc]
(;B[oa];W[na];B[lb];W[ne];B[ma];W[pa];B[qa];W[pe])
(;B[na];W[oa]
(;B[ma];W[lb])
(;B[lb];W[ne]))
(;B[pa];W[oa];B[qa];W[ne])
(;B[lb];W[ne]
(;B[na];W[oa])
(;B[pa];W[oa])
(;B[oa];W[pa])))
(;B[lb];W[oc]
(;B[oa];W[ne];B[na];W[oe];B[pa];W[pe])
(;B[na];W[oa]
(;B[ma];W[ne])
(;B[qa];W[ma]
(;B[pa];W[ne])
(;B[la];W[ne])))
(;B[pa];W[oa]
(;B[qa];W[ne])
(;B[ma];W[qa]
(;B[na];W[rb])
(;B[ra];W[ne]))))
(;B[pa];W[ob]
(;B[lb];W[ne]
(;B[na];W[pe];B[oa];W[oe];B[oc]C[RIGHT])
(;B[oa];W[oe];B[na]C[RIGHT]))
(;B[na];W[lb]
(;B[oa];W[kc])
(;B[kc];W[ma])
(;B[ma]
(;W[la])
(;W[kc];B[oa];W[lc])))
(;B[oa];W[lb])))
(;B[oc];W[ob]
(;B[mb];W[nb]
(;B[lb];W[ne];B[pa];W[pe];B[na];W[oe])
(;B[na];W[lb]))
(;B[lb];W[nb]C[White has one liberty more.])
(;B[nb];W[mb];B[lb];W[na];B[la];W[ma];B[pa];W[ne]))
(;B[nb];W[mb]
(;B[oc];W[ob];B[lb];W[na];B[la];W[ma];B[pa];W[ne])
(;B[ob];W[oc];B[lb];W[na]
(;B[la];W[ne];B[ma];W[oa];B[qa];W[pe])
(;B[pa];W[oa]))
(;B[lb];W[na]
(;B[ob];W[oc]
(;B[la];W[ne];B[ma];W[oa];B[qa];W[pe])
(;B[pa];W[oa]))
(;B[pa];W[ob])
(;B[oc];W[ob];B[la];W[ma];B[pa];W[ne])))
(;B[ob];W[oc]
(;B[mb];W[nb]
(;B[oa];W[na];B[lb];W[ne];B[ma];W[pa];B[qa];W[pe])
(;B[na];W[oa]
(;B[ma];W[lb])
(;B[lb];W[ne]))
(;B[pa];W[oa];B[qa];W[ne])
(;B[lb];W[ne]
(;B[na];W[oa])
(;B[pa];W[oa])
(;B[oa];W[pa])))
(;B[pa];W[nb];B[oa];W[na];B[qa];W[lb];B[kc];W[kb]))
(;B[pa];W[oc]
(;B[mb];W[lb];B[kc];W[nb])
(;B[lb];W[ne])
(;B[nb];W[lb];B[kc];W[mb])
(;B[ob];W[nb];B[oa];W[na];B[qa];W[lb];B[kc];W[kb])))