maoam: <clocked>
On <21...
e5>, what if White tries 22.
xc6? Accepting the sacrifice with
22...
xc6? 23.
xc6+
c7 (not 23...
b8?? 24.
b7+ followed by
xa6+ or
c4+ etc.)
24.
xc7+
xc7 25.
xg4! hxg4 26.
xh8
loses immediately.
22...
c5 threatens
xf2# and forces the exchange of Queens, but this leaves White up a pawn with a safer king, and it doesn't seem to me like Black can compensate for this with active piece play.
Following 22...
b8 White has a few choices:
A: 23.
b3 followed up by
23...b5 24.axb6!?
xf5 25.
f3
e5 26.
c3 for example;
B: 23.
f3 defending the kingside;
C: 23.
g2!? attempting to bring the h1 rook into play with
23...bxc6 24.
b3+ followed by
b6!? perhaps?