Puzzle 92798

The solution is not the best one.
33...Re8 should be the answer but 33...g4, a good move, is given as the solution. This is a tough puzzle and it is disappointing to lose rating points for getting the correct answer, lol.

I think this is the first time I really have to agree that a solution is not quite correct.
When I tried I always chose the line of the puzzle, but actually I see no reason why Re8 should be damned. Both ways lead to a won game, anyways.

Some really good player thinking otherwise?

and why do you think 33...Re8 is better than 33...g4 ?

If you play Re8 on the analysis board, it is the recommended move and results in an evaluation of "-4.4", while g4 is "-3.3".
It is still possible that after deeper calculation g4 might be quite as good, but @dpcjsr's question is: Should Re8 be considered as "Puzzle failed"? In my opinion it shouldn't.

Well put, thank you.

In short, it's better than g4 because after 33...Re8 34. Qf2 g4 35. Kg1 black has the option of 35...Rxh3! with an irresistible attack. 33...g4 34. Kg1 Rxh3 fails to 35. Qxg4+.

33...g4 wins the exchange but allows white to trade the pair of rooks, leaving a Q+R vs. Q+B ending where black's king is wide open to checks. It's winning, but not very quickly.

Re8 initially wins two pawns (that were protecting white's king!) without having to exchange any pieces. Opposite-colored bishops favor the attacker. Black will win more material and convert into an easily winning endgame within 15 moves from the start of the puzzle.

but why 34.Qf2? can't white just play 34.Qd1 ?

That just makes black's attack even stronger. After 34...g4 35. Kg1 (Stockfish already wants to sacrifice the queen with Qxg4) Bxg3! black is crushing. I leave the details to Stockfish, but to begin with he can win the exchange whenever he wants (not that he really wants to).

34. Qd2 is slightly better, but the same line still works.

ok got it, thank you.