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Interesting Petroff game


This was quite a nice game I played just now with an interesting endgame. It also shows why sidelines against the Petroff aren't very effective as white had no advantage at all during the game - I'm not sure why people still insist on playing stuff like this and 3.Nc3. I feel that the Petroff is an underrated opening at club level and white players always seem to avoid the mainlines, similarly to the Sicilian.
Carlsen played this line in game 6 vs Caruana (4. Nd3), which is probably why you're seeing it.

Pretty sure that ended up with something like 12 of the first 20 moves being Knight moves which is of course not what happened here.
@MajorGiggles the other thing I keep seeing is 1.e4 e5 2.Nf3 Nf6 3.Nc3 Nc6 4.Bc4 Nxe4 5.Bxf7? I don't understand why people are playing this, since it's clearly not the same as the Italian Game, but I see it in about 20-30% of all my black games
That seems to be known as the Noa Gambit (and for the avoidance of doubt or me trying to look clever, I just used the Opening Explorer to find that out, never played it or seen it myself).

Stockfish says black clearly better and database says black wins over 80%. So not much of a gambit, however black does have to find an "only" move (6. ... d5) to keep the advantage so maybe it works at club level?
This indeed was a nice game and an interesting endgame.
White's mistake was 25 Nh5+ putting the knight on the rim instead of 25 hxg5+ Kxg5 26 Kf3 keeping the knight at the more central square f4.
White had no advantage at all during the game, but white gets no advantage at all in the main lines either. 3 Nd3 is a try to avoid the main lines that give nothing.
Petroff is an underrated opening at any level. Caruana and previously Karpov, Pillsbury have amply demonstrated the viability for black.
3 Nc3 may well be the best move, preferably with 4 Bb5, or 4 d4, or even 4 a3. 4 Bc4 is not bad either, only not give up the bishop's pair with 5 Bxf7+? but retain it with 5 Nxe4 d5 6 Bd3.

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