(;AB[oc]AB[ma]AB[mb]AB[mc]AB[md]AB[me]AB[nf]AB[of]AB[pf]AB[qg]AB[rg]AB[sg]AW[qf]AW[rf]AW[sf]AW[qc]AW[pe]AP[goproblems]
(;B[rd];W[qd]
(;B[ra];W[re];B[sd];W[rc];B[pd];W[pb])
(;B[pa];W[re];B[sd];W[rc])
(;B[rb];W[qb]
(;B[ra];W[qa];B[rc];W[re];B[sd];W[sb])
(;B[qa];W[pa];B[ra];W[pb]
(;B[rc];W[re];B[sd];W[sb])
(;B[se];W[qe];B[rc];W[re];B[sc]C[three move approach ko])))
(;B[qa];W[re];B[sd];W[rc];B[pd];W[pb])
(;B[re];W[qe]
(;B[rb];W[qb])
(;B[ra];W[pb]
(;B[rb];W[qb];B[rc];W[se])
(;B[pa];W[oa]
(;B[rb];W[qb])
(;B[ob];W[qa];B[rb];W[qb];B[rc];W[se])))
(;B[pa];W[pb]
(;B[qa];W[oa];B[rb];W[qb];B[ra];W[ob];B[rc];W[se])
(;B[ra];W[oa]
(;B[rb];W[qb])
(;B[ob];W[qa];B[rb];W[qb];B[rc];W[se]))))
(;B[se];W[qe]
(;B[rb];W[qb];B[ra];W[qa];B[rc];W[sb];B[sc];W[re]C[three move approach ko])
(;B[pa];W[qb];B[qa];W[ra];B[rb];W[rc];B[sa];W[sd];B[sc];W[re];B[sd];W[sb])
(;B[ra];W[pb];B[rb];W[qb];B[rc];W[re];B[sc];W[sd]C[two move approach ko]))
(;B[qb];W[rb];B[pb];W[ra]))
(;B[rb];W[qb]
(;B[rd];W[qd]
(;B[ra];W[qa];B[rc];W[re];B[sd];W[sb])
(;B[qa];W[pa];B[ra];W[pb]
(;B[rc];W[re];B[sd];W[sb])
(;B[se];W[qe];B[rc];W[re];B[sc]C[three move approach ko])))
(;B[ra];W[qa];B[rd];W[qd];B[rc];W[re];B[sd];W[sb])
(;B[qa];W[pa];B[ra];W[pb];B[rd];W[qd]
(;B[rc];W[re];B[sd];W[sb])
(;B[se];W[qe];B[rc];W[re];B[sc]C[three move approach ko])))
(;B[qb];W[rb]
(;B[pb];W[rd];B[ra];W[pd])
(;B[rd];W[qd];B[pb];W[ra]))
(;B[qa];W[pb]
(;B[rd];W[qd];B[rb];W[qb];B[rc];W[pa];B[ra];W[re];B[sd];W[sb])
(;B[rb];W[qb]
(;B[rd];W[qd];B[rc];W[pa];B[ra])
(;B[ra];W[pa];B[rd];W[qd])))
(;B[pa];W[pb]
(;B[qa];W[oa];B[rd];W[qd]
(;B[rb];W[qb];B[ra];W[ob];B[rc];W[re])
(;B[se];W[qe];B[rb];W[rc];B[ob];W[qb]
(;B[na];W[sd];B[sc];W[re];B[sd];W[sb])
(;B[ra];W[sd];B[sc];W[re];B[sd];W[sb])))
(;B[rb];W[qb]
(;B[ra];W[ob];B[rd];W[qd];B[rc];W[re];B[sd];W[sb])
(;B[rd];W[qd];B[ra];W[ob];B[rc];W[re];B[sd];W[sb]))
(;B[rd];W[qd]
(;B[rb];W[qb];B[ra];W[ob])
(;B[ra];W[re]
(;B[rc];W[rb])
(;B[sd];W[rc];B[pd];W[oa]))
(;B[qa];W[oa]
(;B[rb];W[qb];B[ra];W[ob];B[rc];W[re])
(;B[se];W[qe];B[rb];W[rc];B[ob];W[qb]
(;B[na];W[sd];B[sc];W[re];B[sd];W[sb])
(;B[ra];W[sd];B[sc];W[re];B[sd];W[sb]))))
(;B[ra];W[oa]
(;B[rb];W[rc]
(;B[ob];W[qa]
(;B[qb];W[pc];B[pa];W[re]
(;B[qd];W[pd];B[sd];W[sc];B[rd];W[sb])
(;B[sd];W[sc];B[qd];W[pd];B[rd];W[sb]))
(;B[rd];W[re];B[qd];W[pd];B[sd];W[sc]
(;B[pc];W[qb])
(;B[qb];W[pc];B[pa];W[sb])))
(;B[rd];W[re];B[qd];W[pd];B[sd];W[sc]
(;B[pc];W[qb];B[ob];W[qa])
(;B[ob];W[qa]
(;B[pc];W[qb])
(;B[qb];W[pc];B[pa];W[sb]))))
(;B[rd];W[rc]
(;B[ob];W[qa];B[rb];W[re];B[qd];W[pd];B[sd];W[sc]
(;B[pc];W[qb])
(;B[qb];W[pc];B[pa];W[sb]))
(;B[rb];W[re];B[qd];W[pd];B[sd];W[sc]
(;B[pc];W[qb];B[ob];W[qa])
(;B[ob];W[qa]))
(;B[qe];W[ob]
(;B[qa];W[sc])
(;B[sc];W[qa]
(;B[rb];W[sb])
(;B[sb];W[rb];B[pc];W[sa]C[one move approach ko]))))
(;B[rc];W[rb];B[sb];W[qb];B[qd];W[rd];B[sd];W[pd];B[re];W[qe])))
(;B[ra]
(;W[pb]C[CHOICE]
(;B[pa];W[oa]
(;B[rb];W[rc]
(;B[ob];W[qa]
(;B[qb];W[pc];B[pa];W[re]
(;B[qd];W[pd];B[sd];W[sc];B[rd];W[sb])
(;B[sd];W[sc];B[qd];W[pd];B[rd];W[sb]))
(;B[rd];W[re];B[qd];W[pd];B[sd];W[sc]
(;B[pc];W[qb])
(;B[qb];W[pc];B[pa];W[sb])))
(;B[rd];W[re];B[qd];W[pd];B[sd];W[sc]
(;B[pc];W[qb];B[ob];W[qa])
(;B[ob];W[qa])))
(;B[rd];W[rc]
(;B[ob];W[qa];B[rb])
(;B[rb])
(;B[qe];W[ob]
(;B[qa];W[sc])
(;B[sc];W[qa]
(;B[rb];W[sb])
(;B[sb];W[rb];B[pc];W[sa]C[one move approach ko]))))
(;B[rc];W[rb];B[sb];W[qb];B[qd];W[rd];B[sd];W[pd];B[re];W[qe]))
(;B[rb];W[rc]
(;B[pa];W[oa]
(;B[ob];W[qa]
(;B[qb];W[pc];B[pa];W[re]
(;B[qd];W[pd];B[sd];W[sc];B[rd];W[sb])
(;B[sd];W[sc];B[qd];W[pd];B[rd];W[sb]))
(;B[rd];W[re];B[qd];W[pd];B[sd];W[sc]
(;B[pc];W[qb])
(;B[qb];W[pc];B[pa];W[sb])))
(;B[rd];W[re];B[qd];W[pd];B[sd];W[sc]
(;B[pc];W[qb];B[ob];W[qa])
(;B[ob];W[qa])))
(;B[rd];W[re];B[qd];W[pd];B[sd];W[sc];B[pa];W[oa]
(;B[pc];W[qb];B[ob];W[qa])
(;B[ob];W[qa])))
(;B[rd];W[qd]
(;B[pa];W[re]
(;B[rc];W[rb])
(;B[sd];W[rc];B[pd];W[oa]))
(;B[rb]
(;W[qb];B[rc];W[sb]
(;B[sd]C[RIGHT])
(;B[ob];W[sd];B[re];W[qe];B[se];W[sc])
(;B[se];W[qe];B[sc];W[re];B[ob];W[qa]C[two move approach ko])
(;B[re];W[qe];B[se];W[sc];B[ob];W[qa]))
(;W[rc]C[CHOICE]
(;B[re];W[sd]
(;B[pa];W[oa]
(;B[ob];W[qa];B[qb];W[pc];B[pa]C[RIGHT])
(;B[qb];W[pc];B[ob]C[RIGHT]))
(;B[qb];W[pc];B[pa];W[ob];B[oa];W[od]))
(;B[pa];W[re];B[sd];W[sb];B[pd];W[qb])
(;B[se];W[qe];B[pa];W[sd];B[sc];W[re];B[sd];W[sb];B[sd];W[qb])))))
(;W[rb];B[rd]
(;W[qd];B[se];W[qe];B[pb];W[qa];B[qb]C[RIGHT])
(;W[qa];B[pb]
(;W[qd];B[se];W[qe];B[qb]C[RIGHT])
(;W[qe];B[qb]
(;W[rc];B[sc];W[pc]
(;B[ob];W[pd];B[pa];W[sb];B[se]C[RIGHT])
(;B[pa];W[sb];B[sd];W[od];B[ob];W[oe]))
(;W[sa];B[sc];W[pc];B[ob]
(;W[sd];B[se];W[re];B[sd];W[pd];B[rc]C[RIGHT])
(;W[rc];B[pd];W[qd];B[se]C[RIGHT]))
(;W[pc]
(;B[pa];W[rc];B[sd];W[od];B[ob];W[oe];B[qd]
(;W[re];B[sb]C[RIGHT])
(;W[sb];B[pd];W[re];B[nd]C[RIGHT]))
(;B[ob];W[sd];B[rc];W[sa];B[sc];W[re]))))
(;W[qe];B[qa];W[sd];B[sc];W[re]C[RIGHT]))
(;W[rd];B[rb];W[pb];B[pa];W[oa];B[ob];W[qa];B[qb];W[pc];B[pa]C[RIGHT])
(;W[pc];B[rd];W[rc];B[qe];W[ob];B[sc];W[sb];B[oa];W[pa];B[na]C[RIGHT])))