(;AB[ac]AB[bc]AB[cb]AB[ba]AW[ad]AW[bd]AW[cc]AW[dc]AW[ge]AW[ff]AW[fd]AW[ef]AW[dg]AW[cg]AW[bh]AW[ah]AB[ai]AB[bi]AB[ch]AB[dh]AW[bg]AB[eg]AB[fg]AB[gf]AB[cj]AB[gg]AB[he]AB[if]AW[hd]AB[id]AW[ib]AB[jb]AB[ja]AB[jc]AB[hh]AB[ej]C[Black to play the best endgame.]AW[af]AW[ha]AW[ic]AW[hc]AP[goproblems] (;B[ab];W[db];B[da];W[ea];B[ca]C[]AW[ic];W[ia]C[13 point reducton. Nice.RIGHT]) (;B[db];W[ab] (;B[bb];W[da] (;B[ea];W[eb]C[-4 point reduction :(]) (;B[eb];W[ea] (;B[fb];W[fa];B[gb];W[ga]C[Please play at H18.] (;B[hb];W[ia]C[-4 point reduction :(] (;B[cd];W[dd];B[ce];W[de];B[be];W[ae];B[bf];W[ag];B[df];W[cf]) (;B[ce];W[cd];B[df];W[ee];B[bf];W[de];B[gd];W[gc];B[fc])) (;B[ia]C[NOTTHIS])) (;B[fa];W[fb];B[ca];W[ea] (;B[gb];W[fc];B[hb];W[gc]) (;B[fc];W[gb];B[ed];W[de];B[cd];W[dd];B[ce];W[be])))) (;B[eb];W[bb]C[-4 point reduction :(]) (;B[da];W[bb]C[-4 point reduction :(]) (;B[fb];W[bb]C[-4 point reduction :(])) (;B[da];W[ab];B[bb];W[db]C[-4 point reduction :(]) (;B[eb];W[db] (;B[da];W[ab];B[bb]C[-4 point reduction :(]) (;B[ab];W[da];B[ca]C[This is 2 points sub-optimal. White could also play D18 at A18 to kill unconditionally.])))