The opening is a space grabbing but cautious one. The address of each King is kept a secret for as long as possible. 10...c4 continues the smokescreen until move 15.

20...Bxf3 is a small mistake, The engines happy today to play 20...Qc6 21.Qg2 a5.

23.Qc6 would force me to play Qxg6 or suffer pressure on e6, a perpetual would follow. Alan keeps the game going with 23.Nh4, rather like modern football, going all the way back to the goalie. Best is 23.Qe4 with a long manoeuvre, doubling rooks on the e file and then moving the Queen aside to win the black e pawn. But that is an engine line.

I sent a draw offer with the last move of the game. Seems like a strange thing to have done in a rather interesting position. It was probably due the the large number of strong opponents in play at the same time.