(;AB[ma]AB[mb]AB[mc]AB[nd]AB[ne]AB[of]AB[pf]AB[qe]AB[re]AB[se]AB[pd]AW[la]AW[lb]AW[lc]AW[md]AW[me]AW[nf]AW[og]AW[pg]AW[qf]AW[rf]AW[sf]AW[qh]AW[mg]AB[qd]AP[goproblems]
(;W[nc]
(;B[nb]C[Black shouldn't do this, but if he does...CHOICE]
(;W[oe];B[od]
(;W[pe]C[];B[oc]C[White can do better.])
(;W[oc];B[ob]C[You can only capture 2 stones this way.]))
(;W[oc]C[];B[ob]
(;W[pc];B[pb]
(;W[od];B[qc];W[oe]C[Not bad, even though you have not yet taken the max out of Black's mistake.RIGHT])
(;W[qc];B[rc]
(;W[od];B[qb];W[oe]C[You even get those 2 stones for free.RIGHT]MA[sd]TR[of]TR[pf]MA[pe])
(;W[oe];B[od]C[Just too small.])
(;W[qb];B[od]))
(;W[oe];B[od]C[Just too small]))
(;W[pb];B[pc]
(;W[oe];B[od];W[pe]C[Just too small.])
(;W[od];B[oe]))
(;W[od];B[pc];W[oe])
(;W[oe];B[od]C[Just too small.]))
(;W[od];B[oc]))
(;B[oc]C[]
(;W[nb]C[]
(;B[ob]C[CHOICE]
(;W[oe];B[na]C[Nope, not enough.])
(;W[na];B[oa]LB[oe:A]C[You can capture the gote points at A now];W[oe]C[RIGHT]))
(;B[od]C[CHOICE]
(;W[ob];B[pb]C[RIGHT])
(;W[oa];B[ob];W[na];B[qb]C[A very nice reduction.RIGHT])
(;W[na];B[pb]C[RIGHT])
(;W[pb];B[ob];W[na];B[oa]C[Thanks for the free stone.])))
(;W[oe];B[nb]C[Just too small.]))
(;B[od]
(;W[ob];B[pb]C[Nice sente reduction.CHOICERIGHT])
(;W[nb]C[OK.RIGHT])
(;W[na];B[ob];W[nb];B[pb]C[RIGHT])
(;W[oc];B[pc]
(;W[pb];B[ob])
(;W[ob];B[pb]
(;W[na]C[RIGHT])
(;W[nb]C[RIGHT])
(;W[oa];B[pa]C[An unnecessary seki.])
(;W[pa];B[qa]
(;W[na]C[RIGHT])
(;W[oa];B[qb]C[An unnecessary seki.])
(;W[nb];B[oa];W[na]C[Correct but uglyRIGHT])))
(;W[nb];B[ob];W[na]C[RIGHT])
(;W[oa];B[ob])
(;W[na];B[ob];W[nb]C[RIGHT]))
(;W[pb];B[ob];W[nb];B[oc];W[na];B[oa]C[Thanks for the free stone.])
(;W[oa];B[nb])
(;W[pc];B[oc];W[nb];B[ob];W[na];B[oa]C[That corner still looks awfully big.])
(;W[oe];B[nb]
(;W[pe]C[];B[oc]C[White can do better.])
(;W[oc];B[ob]C[You can only capture 2 stones this way.]))
(;W[pe];B[nb]C[Just too small.])))
(;W[oe];B[od]C[White can do a bit better.])
(;W[pe];B[oe];W[nc];B[nb]C[O17 came too late.];W[oc];B[ob];W[pc];B[pb])
(;W[od];B[oc]C[Now what?]))