(;AW[cb]AW[db]AW[bc]AB[cc]AB[dc]AW[ec]AW[bd]AB[cd]AB[ed]AW[fd]AW[gd]AB[de]AB[fe]AW[cf]AW[df]AB[ef]AB[gf]AB[eg]AB[gi]AB[ab]AB[di]AB[bi]AB[ea]AB[da]AW[hc]AW[he]AB[hf] (;W[ce];B[dd];W[ee]C[The three upward stones which you now captured were in a so called oiotoshi - black had no option to rid you of the option to capture them. In a real game, black wouldn't actually play D16 to attempt to save them.RIGHT]) (;W[ge]C[This is not the trick. Black has the ability to easily escape if he wished.]) (;W[dh]C[This is not the trick. Black has the ability to easily escape if he wished.]) (;W[he]C[This is not the trick. Black has the ability to easily escape if he wished.]) (;W[ei]C[This is not the trick. Black has the ability to easily escape if he wished.]) (;W[fg]C[This is not the trick. Black has the ability to easily escape if he wished.]) (;W[ff]C[This is not the trick. Black has the ability to easily escape if he wished.]) (;W[eb]C[These stones are already dead and doesn't need to be captured at this moment.]TR[ea]TR[da]TR[ab]) (;W[fb]C[These stones are already dead and doesn't need to be captured at this moment.]TR[ea]TR[da]TR[ab]) (;W[ca]C[These stones are already dead and doesn't need to be captured at this moment.]TR[ab]TR[ea]TR[da]) (;W[ac]C[These stones are already dead and doesn't need to be captured at this moment.]TR[ab]TR[ea]TR[da]) (;W[bb]C[These stones are already dead and doesn't need to be captured at this moment.]TR[ab]TR[ea]TR[da]) (;W[fc]C[These stones are already dead and doesn't need to be captured at this moment.]TR[ab]TR[da]TR[ea]))