(;AB[iq]AB[io]AB[fr]AB[fq]AB[fp]AB[ep]AB[er]AW[eq]AW[dq]AW[dp]AW[dr]AW[bp]AW[bn]AB[do]AB[dn]AB[en]AB[em]AB[el]AB[ek]AB[dj]AB[di]AB[ci]AW[ej]AW[fj]AW[gk]AW[gm]AW[fo]AW[eo]AW[go]AW[dk]AW[dl]AW[dm]AW[cj]AB[cf]AB[cp]AW[dd]AW[fc]AW[ic]AB[bd]AB[cc]AW[bc]AB[bb]AW[ab]AB[ca]AB[db]C[Based on my game: black just played the C4 stone. Defend with no ko!]AP[goproblems]
(;W[co];B[cn];W[cq];B[bl])
(;W[bq];B[cm];W[bl];B[cl];W[ck];B[bk];W[bj];B[bm];W[ak];B[cn];W[bo];B[am];W[bi];B[bh];W[ch];B[dh];W[cg];B[bg];W[dg];B[eh];W[bf];B[af];W[fg];B[fh];W[gh];B[gi];W[gg];B[fi];W[hi];B[gj];W[fk];B[hj];W[al];B[ai];W[an];B[be];W[fl];B[ah];W[fm];B[aj])
(;W[bo]
(;B[cm]C[CHOICE];W[bl]
(;B[cl]C[CHOICE];W[ck];B[bk];W[bj];B[bm];W[ak];B[cn]
(;W[am];B[an]
(;W[ao];B[cq];W[cr];B[bq];W[br];B[aq];W[co];B[ar])
(;W[co];B[al]C[This results only in ko]))
(;W[co];B[am];W[bi];B[bh]
(;W[ch];B[dh];W[cg];B[bg];W[dg];B[eh]
(;W[al];B[ai]
(;W[bf];B[eg];W[df];B[af];W[ce];B[be];W[an];B[ah]
(;W[fk];B[cf];W[fl];B[aj])
(;W[cf];B[ae];W[fk];B[ag];W[fl];B[aj]))
(;W[eg];B[fh];W[an];B[ah];W[bf];B[be];W[fk];B[af]))
(;W[bf]
(;B[af]C[CHOICE]
(;W[fg]
(;B[eg];W[df];B[ef]
(;W[ce];B[be]
(;W[ah])
(;W[cf])
(;W[ai]
(;B[al];W[cf];B[ag];W[ae];B[ad];W[ah];B[ae];W[cd]C[RIGHT])
(;B[cf];W[al]C[RIGHT])))
(;W[ai];B[al];W[ce];B[be];W[cf];B[ag];W[ae];B[ad];W[ah];B[ae];W[cd]C[RIGHT]))
(;B[fh]C[CHOICE]
(;W[gh]
(;B[gi]C[CHOICE]
(;W[gg];B[fi]
(;W[hi];B[gj]
(;W[fk];B[hj]
(;W[al];B[ai]
(;W[an];B[ah]
(;W[fl];B[be]
(;W[fm]C[RIGHT])
(;W[fn]C[RIGHT]))
(;W[fm]C[RIGHT];B[be]
(;W[fl]C[RIGHT])
(;W[fn]C[RIGHT]))
(;W[fn]C[RIGHT];B[be]
(;W[fl]C[RIGHT])
(;W[fm]C[RIGHT])))
(;W[fl];B[ah]
(;W[fm]
(;B[be];W[fn]C[RIGHT])
(;B[an]C[RIGHT]))
(;W[fn];B[be]
(;W[fm]C[RIGHT])
(;W[an]C[RIGHT])))
(;W[fm];B[ah]
(;W[fl]
(;B[be];W[fn]C[RIGHT])
(;B[an]C[RIGHT]))
(;W[fn];B[be]
(;W[fl]C[RIGHT])
(;W[an]C[RIGHT])))
(;W[fn];B[ah]
(;W[fm];B[be]
(;W[fl]C[RIGHT])
(;W[an]C[RIGHT]))
(;W[fl];B[be]
(;W[fm]C[RIGHT])
(;W[an]C[RIGHT]))
(;W[an];B[be]
(;W[fl]C[RIGHT])
(;W[fm]C[RIGHT])))
(;W[df];B[be];W[an];B[ah];W[fl];B[aj])
(;W[ah];B[be]
(;W[an]C[RIGHT])
(;W[fl]C[RIGHT])
(;W[fm]C[RIGHT])
(;W[fn]C[RIGHT]))
(;W[be];B[ce]
(;W[an]C[RIGHT])
(;W[fl]C[RIGHT])
(;W[fm]C[RIGHT])
(;W[fn]C[RIGHT])
(;W[ah];B[ae]
(;W[an]C[RIGHT])
(;W[fl]C[RIGHT])
(;W[fm]C[RIGHT])
(;W[fn]C[RIGHT]))))
(;W[ah];B[be];W[al];B[ai]
(;W[an]C[RIGHT])
(;W[fl]C[RIGHT])
(;W[fm]C[RIGHT])
(;W[fn]C[RIGHT])))
(;W[ah];B[fk];W[ag];B[hj]C[You could do better!]))
(;W[fk];B[al])
(;W[ah];B[be];W[hi];B[eg];W[df];B[ef];W[de];B[al]))
(;W[eg];B[hh];W[gg];B[fi];W[hi];B[hj];W[ii];B[gj];W[fk];B[al])
(;W[hg];B[hh];W[gg];B[fi];W[hi];B[hj];W[ih];B[gj];W[fk];B[al])
(;W[hh];B[fi]
(;W[hi];B[gj];W[fk];B[hj]
(;W[al];B[ai]
(;W[an]C[RIGHT])
(;W[fl]C[RIGHT])
(;W[fm]C[RIGHT])
(;W[fn]C[RIGHT])
(;W[ah];B[be]
(;W[an]C[RIGHT])
(;W[fl]C[RIGHT])
(;W[fm]C[RIGHT])
(;W[fn]C[RIGHT]))
(;W[be];B[ce]
(;W[an]C[RIGHT])
(;W[fl]C[RIGHT])
(;W[fm]C[RIGHT])
(;W[fn]C[RIGHT])
(;W[ah];B[ae]
(;W[an]C[RIGHT])
(;W[fl]C[RIGHT])
(;W[fm]C[RIGHT])
(;W[fn]C[RIGHT]))))
(;W[ah];B[be];W[al];B[ai]
(;W[an]C[RIGHT])
(;W[fl]C[RIGHT])
(;W[fm]C[RIGHT])
(;W[fn]C[RIGHT])))
(;W[fk];B[al]))
(;W[ah];B[be];W[gg];B[eg];W[df];B[ef];W[de];B[al]))
(;B[eg];W[df]
(;B[ce];W[ef];B[gg];W[ff];B[gi];W[hh];B[fi];W[hi]C[RIGHT])
(;B[ef];W[ce];B[be];W[ai];B[al];W[cf];B[ag];W[ae];B[ad];W[ah];B[ae];W[cd]C[RIGHT])))
(;W[ah];B[be];W[gh];B[eg];W[df];B[ef];W[de];B[al])))
(;W[df];B[be];W[fg];B[fh];W[gh];B[gi];W[gg];B[fi];W[hi];B[gj];W[fk];B[hj];W[al];B[ai];W[an];B[ah];W[fl];B[aj])
(;W[ai];B[al];W[fg];B[fh];W[gh];B[gi];W[gg];B[fi];W[hi];B[gj];W[fk];B[hj])
(;W[ah];B[be];W[fg];B[eg];W[df];B[ef];W[de];B[al]))
(;B[be];W[af];B[ae];W[fg];B[fh];W[gh];B[gi];W[gg];B[fi];W[hi];B[gj];W[fk]
(;B[hj];W[al];B[ai];W[an];B[ah];W[fl]C[RIGHT])
(;B[eg];W[al];B[ai];W[an];B[ah];W[fl]C[RIGHT])))
(;W[df];B[bf];W[fg];B[fh];W[gh];B[gi]
(;W[gg];B[fi];W[hi];B[gj];W[fk];B[hj];W[al];B[ai];W[an];B[ah])
(;W[fi];B[gg];W[hh];B[eg];W[ff];B[ef];W[de];B[fe];W[gf];B[ge];W[hf];B[ee]))
(;W[fg];B[eg];W[df];B[ef];W[de];B[bf];W[al];B[ai]))
(;W[bg];B[ch];W[ah];B[cg];W[al];B[ai];W[aj];B[bf];W[ag];B[af];W[fk];B[ai];W[ah];B[ag];W[fl];B[ai]))
(;W[bq];B[am];W[bi];B[bh];W[ch];B[dh];W[cg];B[bg];W[dg];B[eh];W[bf];B[af];W[fg];B[fh];W[gh];B[gi];W[gg];B[fi];W[hi];B[gj];W[fk];B[hj];W[al];B[ai];W[an];B[be];W[fl];B[ah];W[fm];B[aj])
(;W[bi];B[cq];W[cr];B[bq];W[br];B[co]))
(;B[bm];W[cn]C[RIGHT])
(;B[cq];W[cr];B[bq];W[br];B[aq];W[co]
(;B[bm];W[cn]C[RIGHT])
(;B[cl];W[ck];B[bk];W[bj];B[bm];W[ak];B[cn];W[ar]C[Continues like the full solution...RIGHT])))
(;B[cq];W[cr];B[bq];W[br];B[aq];W[co];B[cm];W[bl];B[cl];W[ck];B[bk];W[bj];B[bm];W[ak];B[cn];W[ar]C[Continues like the full solution...RIGHT]))
(;W[cn];B[cq];W[cr];B[bq];W[br];B[co];W[aq];B[bo];W[ao];B[ap]C[Big problem here])
(;W[cq];B[cm];W[bl];B[cl];W[ck];B[bk];W[bj];B[bm];W[ak];B[cn];W[bi];B[bo]C[This will end in ko]
(;W[bq];B[br])
(;W[br];B[ap];W[bq];B[cs])
(;W[ap];B[br])))