(;AW[si]AW[rh]AW[qh]AW[qg]AW[pf]AW[of]AW[nf]AW[mg]AW[mh]AW[oh]AW[lj]AW[lk]AW[li]AW[ll]AW[mn]AW[mm]AW[ln]AW[no]AW[op]AW[po]AW[qn]AW[qm]AW[ql]AW[rl]AW[sm]AB[rm]AB[rn]AB[ro]AB[qo]AB[qp]AB[pq]AB[oq]AB[mq]AB[mp]AB[lo]AB[ko]AB[kn]AB[lm]AB[kl]AB[jm]AW[kk]AB[jk]AB[jj]AB[kj]AB[ih]AB[jh]AB[kh]AB[lh]AB[lg]AB[lf]AB[mf]AB[ne]AB[oe]AB[pe]AB[qf]AB[sh]AB[sg]AB[rg]AB[qe]AB[re]AB[sk]C[Black tries to invade. Defend! Thanks to MeleeNewb and Field Mouse for the correction.]AW[on]AW[om]MA[sk]AP[goproblems]
(;W[sj];B[rk]
(;W[qk];B[ri]C[: (])
(;W[rj]C[CHOICE]
(;B[qk]C[CHOICE]
(;W[pk];B[qj]
(;W[ri];B[sl]C[: (])
(;W[pj];B[ri]C[: (])
(;W[qi];B[ri]C[: (])
(;W[sl];B[ri]C[: (]))
(;W[qj];B[pk];W[sl]C[Excellent.RIGHT])
(;W[sl]C[RIGHT]))
(;B[qj];W[ri];B[qk];W[sl]C[Excellent.RIGHT]))
(;W[qj];B[sl]C[: (]))
(;W[rk];B[ri]
(;W[sj];B[rj]C[: (])
(;W[rj];B[sj]C[: (])
(;W[sl];B[sj]C[: (]))
(;W[sl];B[ri]
(;W[sj];B[rj]C[: (])
(;W[rk];B[sj]C[: (])
(;W[rj];B[sj]C[: (])
(;W[qi]C[: (]))
(;W[rj];B[sl]C[: (])
(;W[ri];B[sl]C[: (]))