French blockade sac-part 2

I had posted a game yesterday featuring a French exchange sacrifice on c4. Today, I post a much more interesting game with the same theme, but here, we do not go for a draw, but aim to undermine via the diagonals. I play black as xombie. This was a FICS game played in the STC tournament last year under the 40/10 time control. Note the usage of long diagonals a8-h1, a7-g1 and f8-a3. The end was a little disappointing owing to mistakes made under time pressure, but I can't help but think that there were more prosaic wins that I had missed.