Caro-Kann - unknown variation

Does anyone know the name of the following Caro-Kann variation?

1. e4 c6 2. d4 d5 3. Nc3 Nxe4 4. d4

I should state that I'm currently playing against someone who has employed this variation, but the game is now in its late middlegame - I've only seen maybe two, three instances on rhp and I'm guessing its an unsound variation with surprise value, like the Sicilian Wing Gambit.

Originally posted by Amaurote
Does anyone know the name of the following Caro-Kann variation?

1. e4 c6 2. d4 d5 3. Nc3 Nxe4 4. d4

I should state that I'm currently playing against someone who has employed this variation, but the game is now in its late middlegame - I've only seen maybe two, three instances on rhp and I'm guessing its an unsound variation with surprise value, like the Sicilian Wing Gambit.

The moves you've given don't add up. Is this what you meant?

Yes, sorry about that, I must be snowblind - this is the variation my opponent (as White) played.

An instructive variation of this was played by dopamine and bucky65:

Originally posted by Amaurote
Yes, sorry about that, I must be snowblind - this is the variation my opponent (as White) played.


[pgn]1. e4 c6 2. d4 d5 3. Nb1c3 dxe4 4. d5 [/pgn]

It's a trap! based on the c7 square.
It does require a few slack though very plausible moves.

The move was first played in Steinitz-Von Popiel, Cologne 1898. It is not really a gambit as black wins the pawn back with 5.dxe5 Qa5+. White's best move is probably 5.Nf3 with a huge lead in development.

Thanks for this analysis - that's very informative.