Horrible Loss

LOST feebly in my last-round game at Guernsey this morning.

Position after 20.Nd6-f5 in Stephen Dilleigh (1986) - Spanton (1923)

The game has already gone badly wrong by this (early) stage, but I now made matters much worse:
20...Re8??
A blunder. I had to play something like 20...Bc5, but White has all the chances.
21.Rde1 Rxf2 22.Rxe7 Rb8??
This allows a quick finish. My original idea was 22...Rxe7 23.Nxe7 Rxh2, and struggle on.
23.Nh6 1-0
I finished the tournament with a score of +1=4-2 for a rating gain of 0.6 elo.