Can black use the aji of his stones in white territory and reduce it?
(;AW[rp]AW[qp]AW[sq]AW[rr]AW[pp]AW[oo]AW[po]AW[pq]AW[oq]AW[nr]AW[or]AW[ms]AW[lr]AW[lq]AW[kq]AW[jq]AW[jr]AW[ir]AW[hq]AW[hp]AW[fq]AW[go]AW[fo]AW[dq]AB[sp]AB[so]AB[ro]AB[qo]AB[qn]AB[pn]AB[on]AB[nn]AB[no]AB[np]AB[op]AB[nq]AB[mq]AB[mr]AB[lp]AB[kp]AB[jp]AB[iq]AB[ip]AB[io]AB[ho]AB[hr]AB[gr]AB[os]AB[ps]C[B to reduce lower side.]AB[gn]AB[fn]AB[em]AB[dm]AB[cm]AB[bm]AB[an]AB[am]AW[en]AW[dn]AW[cn]AW[bn]AW[bo]AW[ao]AP[goproblems]
(;B[ns];W[ls]
(;B[rq];W[qq];B[rs]
(;W[qr];B[sr];W[ss]
(;B[gq];W[gp];B[sr];W[qs];B[rq]C[W can't really ignore this ko, so he calmly connects with Q2. Well done!RIGHT])
(;B[gp];W[gq];B[sr];W[qs];B[rq]C[W can't really ignore this ko, so he calmly connects with Q2. Well done!RIGHT])
(;B[eo];W[gq];B[sr];W[qs];B[rq]C[W can't really ignore this ko, so he calmly connects with Q2. Well done!RIGHT])
(;B[fp];W[gq];B[sr];W[qs];B[rq]C[W can't really ignore this ko, so he calmly connects with Q2. Well done!RIGHT])
(;B[fr];W[er];B[sr];W[qs];B[rq]C[W can't really ignore this ko, so he calmly connects with Q2. Well done!RIGHT])
(;B[ep];W[gq];B[sr];W[qs];B[rq]C[W can't really ignore this ko, so he calmly connects with Q2. Well done!RIGHT]))
(;W[pr];B[sr];W[ss]C[Please play G3 as a ko threat here.];B[gq];W[gp];B[sr];W[qs];B[rq]C[This might be better for W as stakes of this ko are not as high as in other variation. Thanks for delapra for pointing this move out!RIGHT]))
(;B[qr];W[rs]C[This is how the actual game went (on byo-yomi though). Black achieves nothing.])
(;B[rs];W[qr]
(;B[sr];W[rq];B[qs];W[fr]C[Nothing for black here.])
(;B[rq];W[sr])))
(;B[rq];W[qq];B[ns];W[ls];B[rs];W[qr];B[sr];W[ss]C[Please play G3 as ko threat. Other threats in variation.];B[gq];W[gp];B[sr]
(;W[qs];B[rq]C[W can't really ignore this ko, so he calmly connects with Q2. Well done!RIGHT])
(;W[rq];B[qs]C[This leads to troublematic ko for W...])))