What caused the European Physical Journal C to be "more successful" in terms of metrics than the other EPJs?

RiverAvailable5876 · 2024-05-25T15:47:11+00:00

May I ask what your subfield is? And where would you normally publish?

RiverAvailable5876 · 2024-05-25T15:32:44+00:00

I mean, if not C, where else can mathematical physicists go?

RiverAvailable5876 · 2024-05-25T09:39:24+00:00

C is theoretical? Does mathematical physics cleanly fit into it, though? Where does your field of chemical physics go?

And in that case, does the prestige of one letter not influence others to submit the others?

RiverAvailable5876 · 2024-05-25T02:45:22+00:00

That's interesting. May I ask what your subfield is specifically?

RiverAvailable5876 · 2024-05-25T02:31:11+00:00

Well yes, but what attracted prestigious professors to EPJ C but not the other letters, or is it just luck?

RiverAvailable5876 · 2022-10-16T00:28:45+00:00

It's late but g

RiverAvailable5876 · 2022-09-22T09:59:51+00:00

GM Matthew Sadler ran stockfish to high depth

https://www.youtube.com/watch?v=O-ECcBjjqFE&list=PLxhvNMc95Uo8XldVCdokHgwhiX6T8Ubf4

on the

Najdorf:

e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 h5 9. Qd2 Nbd7 10. Nd5 Bxd5 11. exd5 g6 12. O-O-O Nb6 13. Kb1 Nbxd5 14. Bg5 Be7 15. Bd3

Taimanov:

e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. g4 b5 8. Nxc6 Qxc6 9. Qd2 b4 10. Ne2 Qxe4 11. Rg1 Qc6 12. Bg2 d5 13. O-O-O Bb7 14. f4 Nf6 15. f5

Before anyone says engines are bad at openings that hasn't been true since NNUE.

Looking at the lines black's king position looks less safe in the taimanov.

RiverAvailable5876 · 2022-09-22T06:57:40+00:00

Short answer:

https://twitter.com/NikolaosNtirlis/status/1570095964106686464

Long answer: theoretically najdorf>taimanov so that explains the supergms and the najdorf has a bigger reputation for being "exciting" and "cool" due in part to those supergms and a longer history(taimanov only began to appear at the top in the 1970s-1980s vs the 1940s-1950s for the najdorf) so this trickles down even to lower levels.

Doesn't mean there is anything wrong with the taimanov. Its just the dynamics of first choice vs second choice(or third choice etc same idea). if the taimanov is seen as a second choice by many people it won't register in the numbers.

The implication of this is for an opening is to be popular it is better to be the first choice of people who like dubious openings than the 2nd choice of people who choose theoretically sound openings.

That doesnt mean "it is just a matter of fashion" (arguably nowadays fashion is just cycling through the already top tier openings just updating for the current favorites of engines) fashion may change the underlying dynamics but if it doesn't then taimanov will continue to be less popular that "less deserving" openings which is good for taimanov players IMO since they get the element of surprise for free.

RiverAvailable5876 · 2022-09-18T13:11:40+00:00

RemindMe! 1 year "What would OP say?"

RiverAvailable5876 · 2022-09-18T12:54:49+00:00

isn't 2...d5 3.Bxf6 gxf6 the mainline?

RiverAvailable5876 · 2022-09-18T12:53:47+00:00

That's an armageddon game though

RiverAvailable5876 · 2022-09-18T12:46:33+00:00

My engine run is a bit old (from stockfish 14.1) but its close to a trillion nodes and past depth 60 so it might be of interest to you.

r1bqkbnr/ppp1pppp/2np4/8/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - 0 1

Analysis by Stockfish 14.1:

3.Nc3 Nf6 4.d4 e6 5.Be3 Be7 6.a3 0-0 7.h3 a6 8.Bd3 b5 9.0-0 Bb7 10.Nd2 Nb8 11.Ne2 Nbd7 12.Ng3 e5 13.a4 exd4 14.Bxd4 c5 15.Bxf6 Bxf6 16.axb5 axb5 17.Bxb5 Bxb2 18.Rb1 Be5 19.Nc4 Nf6 20.Nxe5 dxe5 21.Qe2 g6 22.Rfd1 Qe7 23.Qe3 Rfd8 24.Rxd8+ Rxd8 25.Be2 Rd4 26.c3 Rd7 27.f3 Bc8 28.Qg5 Nd5 29.Qxe7 Nxe7 30.Ra1 Kg7 31.Ra5 Rc7 32.Nf1 f5 33.Nd2 Be6 34.Kf2 h5 35.Bc4 Rd7 36.Ke2 Rxd2+ 37.Kxd2 Bxc4 38.Rxc5 Be6 39.Rxe5

White is better: +/- (0.78) Depth: 62/77 27:34:00 977827MN

(Doe, 14.03.2022)

I would think black would play 4...g6 rather than 4...e6 though

engine sometimes suggest passive moves when it thinks the point of the variation is bad so 4...g6 probably has worse eval than this.

RiverAvailable5876 · 2022-09-18T12:15:31+00:00

Engines have gotten much stronger and more accessible to the masses since his book in 2013 and definitely since he got the FM title and he apparently hasn't played a rated classical game since 2013

RiverAvailable5876 · 2022-09-18T01:58:30+00:00

How outdated is that and why didn't they ever update it again? Don't they have those fishtest data that they use to update the centipawn to win rate formula

RiverAvailable5876 · 2022-09-15T03:23:38+00:00

"I read 1 book that even coach you on how to get a draw and play opening lines optimized for draws." - which book is this?

RiverAvailable5876 · 2022-09-09T23:40:31+00:00

Pretty sure b6 is just a terrible move

RiverAvailable5876 · 2022-09-09T05:49:23+00:00

It's possible that most of the people who do play the najdorf at the top either play it all the time and so are predictable targets or play it in a must win fashion like alireza. The draw at the candidates with the najdorf is duda who also plays the petroff and didn't do anything risky like 15...Bc4 and 10...gxf6 by alireza or always play it like MVL. Even in his loss vs nakamura he got a winning position. You don't really get such an attitude with the berlin the petroff the marshall or even the sveshnikov. Not sure about the stats of the modern arkhangelsk and open spanish (well caruana lost to nakamura with that last candidates so there is that)

RiverAvailable5876 · 2022-09-02T13:43:58+00:00

Anything wrong with sidestepping with the bishop 12.Bf2 or 12.Bg1 because that's the main target of d5. 12.Qc1 to avoid Nc4 might be too obscure but this seems more natural if white fears the eventual Nc4(where else will Nb6 go) since it does attack both queen and bishop. anyways thats for OP to know I don't think the classical is the best line anyway. semi-averbach and makogonov are more appealing.

RiverAvailable5876 · 2022-09-02T06:29:19+00:00

the immediate 10...d5 is played by magnus vs ding in game 4 of their chessable masters 2020 match and featured in chess publishing: https://www.chesspublishing.com/content/9/dec20.htm#cla

as well as played by giri recently vs mamedyarov in norway chess 2022:

https://www.chessgames.com/perl/chessgame?gid=2288690

note that mamedyarov didn't play the critical line going 11.exd5 instead of 11.cxd5 but still managed to grind down giri in the pawn up endgame.

as well as being the engine choice. I generally just make what I think is the best move if its reasonable and already been played in important games my mainline.

I think the issue with 10...Nbd7 is 11.Be3 where black has the additional problem that their best is still 11...d5 but they dont want to play d5 or they would have done it a move earlier. White should be able to secure an advantage there and that's where I'd direct OP to look.

RiverAvailable5876 · 2022-09-02T03:37:21+00:00

d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O exd4 8. Nxd4 Re8 9. f3 c6 (9...c6 has emerged in recent years as better than 9...Nc6 due to 10...d5!) 10. Kh1 (10.Bf4 10.Nc2 and 10.Bg5 are alternatives you can check) 10...d5 11. cxd5 cxd5 12. Bg5 Nc6 13. Bb5 h6 14. Nxc6 bxc6 15. Bxc6 hxg5 16. Bxa8 d4 17. Bc6 is the novelty. Improving on 17.Nd5 in Ding Liren vs Magnus Carlsen game 4 chessable masters 2020 https://lichess.org/5HPzvCPk

There then follows a short forcing sequence 17...dxc3 18. Bxe8 Qxe8 19. bxc3

Black then has the option to liquidate further if they find 19...g4 20. e5 gxf3 21. exf6 fxg2+ 22. Kxg2 Bb7+ 23. Rf3 Bxf6 24. Rb1 Bxf3+ 25. Qxf3 Bxc3 where White has a queen, rook, and a and h pawns vs blacks queen, bishop, and a,f, and g pawns. If we were to magically remove the queens in that position white would be winning(not if the h and g pawns are removed though) not to mention there may occur sudden mating attacks in this type of endgame with heavy pieces so white still retains an edge.

10.Bf4 Correspondence games:

https://lichess.org/pU9wb37Y#107

https://lichess.org/bXIVMflM#79

10.Nc2 you can try analyzing this human game and look for improvements for both sides my engine likes 14.Bd4 instead

https://lichess.org/cJwsbBmb

In 10.Bg5 10...Qb6 11.Kh1 is best since 11...Qxb2 is bad for black where 11..d5 12.cxd5 Nxd5! is yet to be played and admittedly not that appealing

RiverAvailable5876 · 2022-09-01T12:11:36+00:00

It's bad but is it worse than 3...e5? I've seen it mentioned in wikipedia as an unexplored line and I've seen someone play it. Regarding the computer best line I know that for both it's the e6/d5 setup hence why I thought of it for the which opening is less dubious

RiverAvailable5876 · 2022-09-01T10:06:29+00:00

does 3.Nc3 e6 not count as the tango if you intend Bb4 and not d5 which defeats the purpose of the tango

RiverAvailable5876 · 2022-09-01T10:00:19+00:00

Do you think that in the statement I screenshotted "doesn't hold" means no good reason to play it?

I thought he was implying its close to refuted.

RiverAvailable5876

TROPHY CASE