Wednesday, April 19, 2023

The Common Approaches To The Chess Opening Nomenclature Part 2


 


The Common Approaches To The Chess Opening Nomenclature    

 

Part 2: IM Obodchuk’s Name ‘Anti-Russian Variation’ & Its Possible Substitutions     

  

(by Yury V. Bukayev) 

 

 

In Part 2 of my work (its Part 1 was published on Rick Kennedy’s blog, December 2, 2020) I’ll say about the name the Anti-Russian variation of the Three Knights Game’ for 1.e4 e5 2.Nf3 Nf6 3.Nc3 Bb4 – the very strange (in my opinion) name which was used by IM Andrey Obodchuk in his book ‘The Four Knights Game’ in Russian (this book was published in 2013 or in 2014 in Moscow). I have no opportunity to contact Mr. Obodchuk to ask him about this name and about russophobia, unfortunately, but it is possible to analyse the situation mainly without author’s explanation.  

 

Firstly, Mr. Obodchuk calls both 1.e4 e5 2.Nf3 Nf6 3.Nc3  and  1.e4 e5 2.Nf3 Nc6 3.Nc3  as the Three Knights Game’, but it isn’t right. Thus, only 1.e4 e5 2.Nf3 Nc6 3.Nc3 is the Three Knights Game, in fact. The another system – 1.e4 e5 2.Nf3 Nf6 3.Nc3 – is the Three Knights variation of the Russian Game, in fact. It should be noted that the common approach doesn’t permit to name these two variations identically. 

 

Secondly, this author calls 3…Bb4 as ‘the Anti-Russian variation (‘антирусский вариантin Russian), but it can’t be right, since the Russian game (the Petrov defence) arises as a result of 2…Nf6 after 2.Nf3, so Black can’t form ‘anti-Petrov systems: only White can form them. It is according to another common approach to the opening system nomenclature. 

 

I suggest to re-name this variation and to forget the very strange name ‘the Anti-Russian variation of the Three Knights Game’ for it. Here are some of my variants for it: 

 

  • the Russian Game: the Three Knights variation with 3…Bb4; 

 

  • the Berlin variation reversed of the Spanish Game reversed; 

 

  • the Russian Game: the Three Knights variation: the Berlin pseudogambit. 

 

The last variant can be understood after reading of the Part 1 of this my work where the term ‘pseudogambit’ was explained, after analysing of 3…Bb4 4.Nxe5. Or my other published work ‘The Winning Part of the Same Jerome Gambit – 4.c3 Nf6 5.0-0 Nxe4 6.b4 Nxf2 7.Bxf7+! (Part 2)(2023) can be used for it instead. 

 

 

 

Contact the author:  istinayubukayev@yandex.ru  

 

 

© 2023 Yury V. Bukayev (Copyright © Bukayev Yury Vyacheslavovich 2023). All rights reserved.  

[A legal using of this investigation with a reference to it is permitted  

and doesn’t require author’s consent.] 

 

Tuesday, April 18, 2023

Jerome Gambit: Short Lesson



Even a short Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) game can include a number of lessons. 

Here we see the effort of DutchLiLi, playing at lichess.org. He is a Jerome Gambit veteran, with 760 games in The Database - scoring 51%.


DutchLiLi - OlafGunter

1 0 bullet, lichess.org, 2023

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+

4...Kxf7 5.Nxe5+ Ke8


Black is happy with just one of the offered pieces.

Stockfish 15.1 is not convinced, rating the position as 3/4 of a pawn better for White (31 ply).

Furthermore, the Database has 225 games with this position, with White scoring 71%.

DutchLiLi is 7 - 4 - 1 (63%) in his games against 5...Ke8

6.Qh5+ 

In a bullet game, it pays to be aggressive.

For the record, stronger was 6.Nxc6, when the sharp response 6...Qh4!? (edge to White) remains unplayed.

Either way, White should have something prepared for 5...Ke8. Jerome Gambit players from angelcamina to ZahariSokolov have faced it.

6...g6 7.Nxg6 

The best chance.

7...d6 

In a 60-second game it might have been hard to find his way through to the computer's suggestion: 7...Bxf2+ (getting a pawn for the hanging piece) 8.Kxf2 Nf6 9.Qh4 Rg8 10.Rf1 Rxg6 11.Kg1 Qe7 12.d3 Qg7 13.Nc3 d6 14.Kh1 Be6 15.Ne2 Kd7 16.Nf4 Rg8 17.Nxg6 Qxg6 18.Qg5 Qxg5 19.Bxg5 Nxe4 20.Be3 Ng5 where his extra piece would outweigh White's extra pawn.

The text move allows checkmate.

8.Nxh8+ Black resigned




Monday, April 17, 2023

He Should Have Played the Jerome Gambit


In the following game an inventive and aggressive bullet player finds that his creativity takes him a bit too far - with unfortunate results.

It didn't have to go that way. 

Jerome.


Yasin_SUST - frastornante

1 0 bullet, lichess.org, 2023

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Nxe5 

We have seen this relative to a Chicago Gambit (1.e4 e5 2.Nf3 Nc6 3.Nxe5) played by Yasin_SUST in "Jerome Gambit: Wandering (Parts 1 & 2)"

Now, after 4...Nxe5, Yasin_SUST has scored 5 - 2; and he was 4 - 0 with the followup 5.Bxf7+ - and three of those games transposed to the Jerome Gambit with 5...Kxf7.

4...Qf6 

Counter-punching. It looks primative, but in 1-minute games surprise moves can have their impact.

5.Nxf7 

Clearly, a piece must capture on f7, but the (Jerome) way was 5.Bxf7+ Kf8 6.Nd3 Qxf7 7.Nxc5 Qg6 8.O-O and White has a couple of extra pawns. Less good for Black would be an alternate King move, i.e. 5.Bxf7+ Kd8 6.Nxc6+ bxc6 7.Qf3.

5...Qxf2 checkmate

A reversed form of the Scholar's Mate. Ouch.

Such things can happen when you have only 60 seconds for a whole game.

In fact, it has happened before in the game Do, Nguyen Bao - Khuu, Dich Tai, Ho Chi Minh City, Vietnam, 2014, although, to be fair, that was an under-7 game.







Sunday, April 16, 2023

Jerome Gambit: Hounded by the Clock?



Blitz games can be fun to play over, especially when they are chaotic, like Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) games.

Carlos_Ricardo - DragonPatronus

3 3 blitz, lichess.org, 2023


1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 7.f4  Ng6 


Earlier games with this line were covered in the games 
SensGuy - ad7976, 3 2 blitz, lichess.org, 2020 ("Jerome Gambit: An Extra Move Always Helps") and 
Astral1119 - mofax, 1 0 bullet, lichess.org, 2021 ("Jerome Gambit:Quick WrapUp").

Also

Some reflections -

from "Superpippo!"

This move, despite the soundness of the basic idea – save one piece and return another – is too "creative" and leads to an even game. With a regular opening, having Black reach equality this early is an accomplishment for the second player, but in the Jerome Gambit – where White spots his opponent two pieces – it is a sign that something has already gone wrong for Black. 

The kind of move - withdrawing a piece from attack - that someone unfamiliar with the Jerome Gambit might make quickly. (Best was 7...Qf6). 
My guess is that at this point Bill got out his psychic micrometer, measured the apparent depth of his opponent's experience with (or understanding of) the opening, and chose a line of play that was most efficacious against an unschooled or uneasy opponent. 
With more time to consider - the whole point of playing the Jerome Gambit... is that Black does not have much time to consider - Black would have found the less sensible (but stronger) 7...d67...Nd37...Qf6 or 7...d5.

8.Qxc5 d6 

As early as 2014 (see "Overwhelmed") I recommended  8...N6e7 here. 

9.f5+


White's check on the enemy King overrules Black's attack on the Queen. The "Jerome pawns" are showing their worh.

9...Kf7

This is a blitz game. With limited time, it may not be clear that this is the weakest of the 4 possible King moves. Stockfish 15.1 (35 ply) evaluates 9...Kd7 as slightly better for White; 9...Ke7 and 9...Kf6 are each increasingly better for White, up to about 1 3/4 pawns' worth.

The text exposes the Black King a bit too much.

10.Qd5+ Ke8 11. fxg6 hxg6 

The excitement has waned, with White having an extra pawn, the better pawn structure and the safer King.

Black now strikes out, ineffectively - perhaps hounded by the clock.

12.O-O Rh5 13.Qf7 checkmate.