This is a neat combination from the end of a 10 min game I just played.  Maybe it's not 100% accurate; you decide.

Look's like a forced mate,27.RxQc1...RxRc1, 28.Be1...RxBe1, 29.Qf1...RxQf1#

This is probably something obvious that I'm missing, but what if 26.fxe3?

Clearly 26. Kg1 is a blunder, 26. fxe3 must be the best reply. Maybe black still has a decisive attack, but I doubt that was the plan when 25... Nxe3+ was played here.