An alternative was 21.Qe3 Qb6 22.Rf1 ... end of attack, maybe? With the text-move, Black gets a favourable early end game with 21.e5 Nxe5 22.dxe5 (White might be better advised here to play 22.Qe4) ...Bxe5, a continuation possibly going 23.Bxa7 Ra8 24.Bf2 Bxa1 25.Qxa1 Qxa2. With a rook and a couple of passers for two minor pieces, Black seems to obtain the edge in this line.

Yes I did look at this line, and saw that 21. e5 Nxe5 22. Qe4 with advantage to white, but I couldn't play 22. dxe5 Bxe5 23.Bxa7 Ra8 24.Bf2 Bxa1 25.Qxa1 Qxa2 with advantage to black.

why Bh6? big blunder ? Nxe5 or Rx f2 ? I'm very sad for black move

Better would have been 22...Qf7!, but White can hold: 23.Nh1! Be3 24.Bxe3 Nxe3 25.Qd3 ... Black's attack soon peters out, and White has kept his pawn surplus.

(!) Best.

Many thanks

I had the move order the other way round: 25.Qb8+ Kg7 26.Rf1 ... still works! I do like the forcing lines. They tend to reduce the opponent's defensive options. Not 25.Qe8+ Kg7 26.Rf1, though: White needs to have the e-pawn covered: 26...Qxe5+ (=).

Yes stockfish likes 25. Qb8+ first, but I don't think it makes much difference.

The alternate move order would pretty much have forced Black into the losing Q exchange line. That Black has other options, though, is no help to him here.

Black saw the mate in four coming, betimes. But after 26...Qxe5+ 27.Qxe5, Black goes into the ending the exchange and a pawn down. I like this game - kind of placid for much of it, but with a fine fiery denouement.

Many thanks!