Novelty discovered in the Berlin Defense

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Dyslexic_Goat

So far, looking at previous moves, 36. Rh1 and 26. Qc2 look to be the defining mistakes of that line. However, in both cases White couldn't claim to have an advantage even by that point, so it looks like I'll have to roll it back earlier.

Dyslexic_Goat

Working through a slightly more promising line. Game 1 allowed Black far too much counterplay on the kingside.

As always, feel free to provide any potential refutations.

Dyslexic_Goat

Probably the most straightforward path to equality for both sides, unless something better comes along.

Dyslexic_Goat
Play_e5 wrote:

It's not a novelty. It's the engine's best move on that position

Second best actually. 7. d4 is the preferred line. 

 

You say it isn't a novelty, can you show which previous opening books/players discovered it before? If not, then it is uncharted territory.

Dyslexic_Goat

Not really. 7. d4 is strong enough objectively to override any temptations from 7. b4, which Stockfish agrees is probably handing Black a small advantage. I sat SF10 on move 7 to a search depth of 47, and d4 is the clear winner of the two.

Dyslexic_Goat

If anything, 7. b4 occasionally wasn't even second-best in SF's opinion, as 7. Nc3 was also a contender.

Dyslexic_Goat

I know, and I don't care. My interest is in exploring with what I have, and evolving lines where I'm able. 

Dyslexic_Goat

You're welcome to play it if that's what you believe 

 

Feel free to use the analysis I've posted as inspiration. xD

Dyslexic_Goat

Let me know what happens if Black plays 7... Nxb4, that's still a bit of a blind spot, though it generally looks like Black wouldn't have adequate compensation for accepting the gambit

Dyslexic_Goat

A few other unknown contributors on LiveBook have suggested 7... a5?!, 7... Nf7, 7 ... Be7 and 7... Nf5 as possible alternatives for Black's initial response. I have no darn clue which engine thought up a5 and Nf7, but I can confirm Nf5 is Deep Fritz 13 at depth 18 (not likely to be very high quality) and Be7 is from Komodo 11.2, depth 19 (quality engine, but relatively shallow)

Dyslexic_Goat

It's not even really a pawn sacrifice after

Black doesn't get left with a great position here.

Dyslexic_Goat

Looking past 7... Nxb4 at the most critical line, Black may actually be able to get away with capturing on b4. After a series of forced moves, Black's position is somewhat closer to equal in development, but still has a ways to go.

 

Dyslexic_Goat

Interesting. We may need to check for improvements in this line, because if there aren't any then this whole gambit may just be a fancy draw offer from White. White needs to find some better way to punish Black for accepting the pawn sac, and/or Black needs to find a better way to entrench. 

As it stands after 7..Nxb4:

If Black can comfortably draw after White sacs a whole pawn, then this opening is pointless. Can't have that! grin.png

Dyslexic_Goat

I haven't forgotten! 

I've switched computer processing to other lines for now, as our current "mainlines" and results suggested that this novelty wasn't very promising (to date, SF10 in self-play defeated White once with 7... a6 and drew with 7... Nxb4). So current data suggests there's better theory to work through.

Dyslexic_Goat

I had thought we had seen a brand new, 5th-move Sicilian invented during the CCC, Stockfish vs Komodo. Play progressed as follows--

But apparently it was just the server's fault for missing 5. Qxd4 and moving the entire PGN file awry by one move. 

Yudodattome

do this

 

Dyslexic_Goat

That is indeed the Berlin mainline

Geovani2

en español no le entiendo inglis

Dyslexic_Goat

Minor note, this project will be revisited soon! I'm getting a massive hardware upgrade, and I am curious to see what LC0 will do to this line, Stay tuned for more inspired nonsense!

QZamyad

Live Chess

https://m.youtube.com/channel/UCDdxKb7sYliwi8RNMzkNzSw?view_as=subscriber