Friday, December 16, 2022

From a Multi-step Synthesis Concept in Theoretical Chemistry to the New Record-holder of Logical Reconstructions in Chess? (Part 1)

  



 From a Multi-step Synthesis Concept in Theoretical Chemistry to  

the New Record-holder of Logical Reconstructions in Chess? (Part 1)   

  

(by Yury V. Bukayev) 

 

 

Being a chemist-scientist and a chemist-engineer, I’ll compare a synthesis in theoretical organic chemistry with chess, but, of course, I’ll start to consider chess here at first. 

 

Probably, almost each reader of Rick Kennedy’s blog has already found (among web videos on the Jerome gambit) and watched the Twitch-clip Alessia tries Jerome gambit by the National Women’s and Girls’ Champion Woman FIDE Master Alessia Santeramo (Italy) with her demonstration of the final of her web game (as White) on Chess.com. Each reader remembers her showman rapturous yell and probably a natural happiness on her face near the end of this demonstration. But the majority of us takes an interest in chess positions, not in bright emotions on computer screens 

 

Dear Rick Kennedy has said me recently that it will be very nice to see the whole game. Unfortunately, I have not yet found it: probably it isn’t available to an ordinary user of the Internet. Is it possible to make a logical reconstruction of the game if you have only the position of its non-theoretical and extraordinary middlegame, without knowledge of its length? You’ll say “no, of course” probably, but I have tried to make it. Here it is.   

 

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ (It is according to the name of the clip. All further moves up to the 18th Black’s move are my logical reconstructions. If two or more ways are possible, then I try to choose the most probable way.) 4…Kxf7 5.Nxe5+ Nxe5 6.0-0 (I have the following version of why it has happened. I suspect, Ms. Santeramo has tried here to make the ordinary move 6.Qh5+!, but her computer mouse has accidentally pushed the King on e1 instead of the Queen on d1. In this situation her move 6.0-0? was the best of possible King’s moves.) 6…Bf8 (Of course, it isn’t the best retreat, but it keeps a winning advantage for Black. WFM Alessia Santeramo sees it. But she remembers that her opponent isn’t a chess master probably, that it is a blitz (?) game with the Jerome gambit, so she understands: she should try to attack her opponent for mistakes.) 7.Qh5+ (I think, 7.f4! AN is the best move here. Of course, after 7…Ng6? 8.f5! White gets the attack. After 7…Nc6! we should compare this interesting position with the known position of my research ‘JG: The New in Its Opening Theory, in Its Psychology (Part 11) with 11…Bf8. Thus, in that known position White’s “pawn tank” is very strong. Alternatively, in this our position it isn’t so very strong, so Black has much more time for a winning counter-attack. But Ms. Santeramo’s opponent could make here mistakes, so she had enough practical chance in this possible fight.) 7…Ng6 8.d3 Nf6 9.Qa5 d6 10.d4 Nxe4 (It’s Black’s first large mistake.) 11.Qd5+ Ke8 12.Qxe4+ Qe7 13.Qf3 Qf6 14.Qe4+ Ne7 15.Qd3 Nc6 16.Qe2+ Qe7 17.Qc4 Be6 (It’s another one.) 18.Qb5 Rb8 (It is the earliest move of the game, without indication of its number, which can be found on Ms. Santeramo’s clip. This move is again a mistake. Here I stop to make my brief comments: Alessia Santeramo starts to show and comment here. I’ll comment later.) 19.d5 Kd8 20.dxc6 Kc8 21.Bg5 Qf7 22.Nc3 Bc4 23.Qb4 Bxf1 24.Qg4+, and Black resigned. 

 

It maybe, this very long reconstruction is a new record-holder of logical reconstructions in chess history. I hope, WFM Alessia Santeramo, or her opponent nicknamed ‘ChessToG0 (Black) from Germany, or somebody else will be able to help us to see the protocol of the whole original game in the future, when it is possible. Dear players, thank you for the game! 

 

[to be continued…] 

 

Contact the author:  istinayubukayev@yandex.ru  

 

© 2022 Yury V. Bukayev (Copyright © Bukayev Yury Vyacheslavovich 2022). All rights reserved.  

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

and doesn’t require author’s consent.] 

Thursday, December 15, 2022

Jerome Gambit: Slip?



I will get back to opening and middle game adventures in the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) next post, but for the moment I would like to share another endgame with the caveat, that just as a blitz time control can limit what players see (analytically) in the opening (to the benefit of the Jerome Gambiteer), so too can it limit what players can see when they have fewer pieces on the board (and fewer minutes on the clock).  

As Tartakower said "The mistakes are all there, waiting to be made". It's a shame he never played the Jerome Gambit.

Also, internet chess has a different "feel" from over-the-board chess.


tacticgod - QuangTung2D

10 0 blitz, lichess.org, 2022


White has a Queenside pawn majority. Black has a Kingside pawn majority. Balanced game? No. The g-pawn will serve as a distraction for the White King, while the Black King pursues mischief on the Queenside.

40.b4 

Is White trying to convert his Queenside pawn advantage? Or is this just the best that he has in the position?

Computers have improved their endgame play immensely over the last decade or so. Stockfish 15 sees Black as almost a Queen better.

40...b6

This is a blitz game, and Black quickly opts to balance things on this wing, relying on his advantage on the other wing. 

He could have clarified the situation on the board instead with 40...axb4 41.cxb4 Ke5 and then just let things play out, e.g. 42.Kg4 Kd4 43.b5 cxb5 44.axb5 Kxd3 45.Kxg5 Kc4 46.Kf4 Kxb5 47.Ke3 Kb4 48.Kd2 Kb3 49.Kc1 b5 50.Kb1 b4. One extra pawn is enough 

41.bxa5 bxa5


Things have changed: the position is equal. The Kings will take over.

42.Kf3 c5 43.Kg3 g4 44.d4 cxd4 45.cxd4 Ke4 46.d5 

After 46...Kxd5 47.Kxg4 Ke4 Black's King will mark White's and keep it from the pawns, ensuring the draw. It is not the that win he had a few moves ago, but he will have salvaged a half point.

46...Kd4 

This can only be a mouse slip. (I suppose such things happen in over-the-board chess - Ooops, I dropped the piece - but they have to occur less often.)

Now White's pawn can run away and promote to a Queen. 

47.Kxg4

Mental inertia. Perhaps White has been focusing on equalizing the game so much that he misses the winning 47.d6.

White returns the game to even.

47...Kxd5 48.Kf4 Kc4 49.Ke4 Kb4 50.Kd3 Kxa4 51.Kc2 Ka3 52.Kb1 Kb3 53.Ka1 a4 54.Kb1 a3 55.Ka1 a2 drawn by stalemate



Wednesday, December 14, 2022

Jerome Gambit: Endgame Maze

 


I got a chuckle out of the following endgame position from a Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) game. I do not know the time control, but I suspect that it was blitz.

scwymstr - divegeester

RedHotPawn.com, 2022


Black has retained his extra piece. 

Stockfish 15 says he has a checkmate in 20 moves. Of course, a computer would say that.

45.Kf6 

White's best practical chance is for his King to go after the pawns.

What should Black do?

My first thought was the crude 45...Bxh5, since 46.gxh5 would unblock the g-pawn and let it run toward the Queening square with 46...g4.

No, 45...Bxh5 should be met by 46.Kg7!, and although Black gets to gobble up the enemy pawns first, after 46...Bxg4 47.Kxh6 White will be able to eliminate the enemy pawns as well, leading to a draw.

45...Bd7 

Black's plan is to attack the pawns another way. Indeed, after

46.Kg6 Bxg4 47.Kxh6 Bh3


the game was drawn, as White can grab the g-pawn and Black's Bishop has time to position itself on the b1-h7 diagonal to intercept the White pawn, e.g. 48.Kxg5 Bf1 49.h6 Bd3.

Fair enough.

However, both  players probably figured out after the game - when the clock was no longer ticking - that Black could win if he did not play 45...Bd7, but instead hustled his King over to the pawns 

45...Kd2 46.Kg7 Ke3 47.Kxh6 Kf4 

Just in time! 

48.Kg7 

To the strains of Supertramp, "Take the long way home" 

48...Bc6 

Careful! 48...Kxg4 would lose to 49.h6 because the Bishop can not intercept the pawn, so White wins. And 48...Bxh5 should only lead to a draw after 49.gxh5 g4 50.h6 g3 51.h7 g2 52.h8/Q g1/Q.

Instead, the Bishop heads for the critical b1-h7 diagonal.

Now 49.h6 Be4 50.h7 Bxh7 51.Kxh7 Kxg4 is a clear win for Black, as would be 49.Kf6 Kxg4 followed by either capturing the White pawn or 50.Be4.  

Once again we see that the endgame is important, even in wild attacking games like those featuring the Jerome Gambit.


Tuesday, December 13, 2022

Jerome Gambit: More of A Stumble Than A Nudge


Following up on the previous post, a discussion about another mental "tool"...

Although the Jerome Gambit is not particularly known as a "subtle" opening, it has a few lines that feature a light touch. For example, in the line 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ng6


White can now simply capture the Bishop with 7.Qxc5.

White can also first "nudge" the Black King back with 7.Qd5+, (followed by 8.Qxc5) hoping that the King's placement will later interfere with development of his Rook. Subtle - and as old as Jerome - Brownson, Iowa, 1875 (1-0, 28).

(For the record, The Database has 2,794 games with the direct capture of the Bishop and 2,492 games with the "nudge" first.)

There are some positions in the Jerome Gambit, however, where the "nudge" does not work. Take the following position


In Sahuaripa - Dilmurod777, 3 2 blitz, "35th Lichess Mega A Team Battle", lichess.org, 2022, White now played 7.Qf5+ and promptly resigned after 7...Qf6 as the Knight is protected and White will remain 2 pieces down. Sometimes in a blitz game we grab the wrong tool from the box.

Of course, since this was a game played online, there is also the possibility that 7.Qf5+ was a "mouse slip" and not a thinking error at all. An earlier example of such a slip was Wall,B - Guest2208830, PlayChess.com, 2013 (1-0, 31).

Overall, The Database has 16 games with 7.Qf5+, with White scoring a surprising 25%. Although, seeing as we are talking about the Jerome Gambit, perhaps that is not so surprising after all.

Monday, December 12, 2022

Jerome Gambit: An Idea Is A Tool

 


As I have noted before

Gerald Abrahams wrote in his book, The Chess Mind, that the smallest unit in a chess game was not the move, but the idea.

Ideas in chess are like tools in a tool box, the more you have, the better your pattern recognition, the faster you can identify candidate moves and the better your chances for success.

Consider the following blitz game. Remember that blitz time controls often make it more difficult to find the "tool" that you need.

psatpute - rs_pecoraro

10 0 blitz, lichess.org, 2022.

14.f3 Qd4+ 15.Kh1 Nf2+ 16.Kg1 Nxe4+ 17.Kh1 Nf2+ 18.Kg1 Nh3+ 19.Kh1 Nf2+ 20.Kg1 Nh3+ 21.Kh1 Nf2+ draw


There you go.

You could say that White escaped from the "refuted" Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) that he started with.

You could say that Black escaped from the horrible onslaught that often accompanies the Jerome Gambit.

But - if your mental "tool set" contained the idea of a "smothered checkmate", you might have found 

16...Nh3+ (the double check is important) 17.Kh1 Qg1+! 18.Rxg1 Nf2# or

18...Nh3+ 19.Kh1 Qg1+! 20.Rxg1 Nf2# or

19...Qg1+! 21.Rxg1 Nf2#

21...Qg1+! 22.Rxg1 Nf2#

I give the above, somewhat repetitive, lines to help reinforce the idea of a "smothered checkmate", as well as the following diagram




Sunday, December 11, 2022

Jerome Gambit: Round Four Begins



Round 4 of the Chess.com "Giuoco Piano Game" tournament has started.

In Group 1 I am facing auswebby, graintrader 69, and joshuagasta. Of course, with White, I am playing the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+).

Group 2 includes DouglasEngle, joro_videv, xyz7, and i1slamov.

I wish Good Chess to all of my opponents.