I was completely blind to the advantage white would have by taking the T12 position. As I worked through various sequences, that wasn't a move I gave you credit for, and it may have lured me into my false perception that I had a legitimate double threat working. I've got a lot to learn, because I was completely unaware of my losing position until that 17.t12 hammer. That's when I finally woke up and realized I had lost.
i was sure that after |15.k11 i had winning position becouse:
|16.n10 17.q6 18.r14 19.m17 20.i15 21.r13 22.p13 23.s15
|16.n10 17.q6 18.r14 19.m17 20.n14 21.i12