(;AB[mc]AB[nc]AB[md]AB[me]AB[ng]AB[ph]AB[qh]AB[rg]AB[rf]AB[re]AB[rd]AB[qd]AW[qe]AW[qf]AW[qg]AW[of]AW[nd]AW[od]AW[pd]AW[qc]AW[rc]C[White's stones are not completely settled. Black to attack.FORCE]AP[goproblems]
(;B[rb]
(;W[ob]
(;B[qb];W[sc]
(;B[oc]C[White is dead!RIGHT])
(;B[pc]C[White is dead!RIGHT]))
(;B[sc];W[qb]TR[pb]C[White is alive.]TR[pe])
(;B[pc]
(;W[oc];B[qb]C[White is dead!RIGHT])
(;W[qb];B[oc];W[sb];B[ra];W[pb];B[nb]C[White is dead!RIGHT])
(;W[pb];B[oc]
(;W[sc];B[qb]C[RIGHT])
(;W[qb];B[sc]C[RIGHT])))
(;B[oc]
(;W[pc];B[qb]C[White is dead!RIGHT])
(;W[qb];B[pc])
(;W[pb];B[sc]C[White is dead!RIGHT]))
(;B[pb];W[qb]))
(;W[pb];B[sc];W[oc]
(;B[qb];W[nb];B[mb];W[oa])
(;B[nb]
(;W[qb];B[ob]C[White is dead!RIGHT])
(;W[ob];B[qb]C[White is dead!RIGHT])))
(;W[qb]
(;B[sc];W[ob])
(;B[ob];W[sb]
(;B[ra];W[pb]C[White is alive.])
(;B[pc];W[ra]C[Black captures 7 stones in sente. This is the best result for both sides.CHOICERIGHT]))
(;B[oc];W[pc];B[sc];W[qa]C[White is alive.])
(;B[pc];W[oc];B[ob];W[pb]TR[nb]TR[sc]C[White is alive.]))
(;W[sc];B[pb]
(;W[qb];B[pc]C[White is dead.RIGHT])
(;W[pc];B[qb]C[White is dead.RIGHT])))
(;B[pb];W[ob]
(;B[pc];W[oc]C[White is alive.])
(;B[oc];W[pc]
(;B[qb];W[rb];B[nb];W[ra]C[White is alive.])
(;B[nb];W[qb]C[White is alive.])))
(;B[qb];W[pb]C[White is alive.])
(;B[sc];W[ob]
(;B[rb])
(;B[oc];W[pc]
(;B[nb];W[pa]C[White is alive.])
(;B[rb];W[qb])
(;B[sb];W[rb]))
(;B[qb];W[rb]C[White is alive.])
(;B[pc];W[oc]
(;B[qb];W[rb]C[White is alive.])
(;B[rb];W[qb]C[White is alive.])))
(;B[ob];W[pb]C[White is alive.])
(;B[pc];W[oc]
(;B[pb];W[ob])
(;B[rb];W[pb];B[sc];W[nb]C[White is alive.]))
(;B[oc];W[pc];B[sc];W[sb]C[White is alive.]))