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1500 questions
12
votes
4 answers
Looking for free versions of older chess engines
In connection with another project, I am looking on the internet for some free versions of older chess engines, such as some of the old Chessmaster engines from the 1990s. I would even take an old Fritz engine if there were one.
I'm wanting to…
the_photon
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12
votes
4 answers
Why is it a blunder to capture this pawn even if its defender is pinned?
[FEN "1r1q1rk1/p4pp1/3p1b1p/2pQ4/4P3/P1P2P2/1P2B1PP/1K1R3R b - - 0 20"]
[Title "The Position"]
1... Bxc3??
In this position, I believed that the best move for Black is Bxc3. It’s a free pawn, creates a threat on b2, and exposes the white…
hb20007
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12
votes
1 answer
How can I let my opponent know that I'm touching a piece to adjust it?
Everyone knows the touch-move rule, which states that:
If a player deliberately touches a piece on the board when it is their
turn to move, then they must move or capture that piece if it is legal
to do so.
But, sometimes you just need to adjust…
TheFakeGrandmaster
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12
votes
1 answer
Is there any correlation between average rating and the time of the day?
Crosspost to Stats.SE.
I play online bullet, mostly lichess, sometimes chess.com. Once I noticed that my average performance varies depending on the time of the day: e.g. at the morning I can lose 50 rating after a dozen of games, but I will easily…
Ivan Smirnov
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12
votes
2 answers
Wrong inaugural move in game 2 of Carlsen - Nepomniachtchi
In the game 2 of the current World Championship Series, the FIDE president Arkady Dvorkovich made the inaugural move, which differed from what Carlsen wanted the move to be. How does this exactly work, are there any rulings on this? Is it just a…
kopaka
- 241
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12
votes
3 answers
Ruy Lopez - why does Black not take e4?
In the following Ruy Lopez opening;
[FEN ""]
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 (5... Nxe4)
Now the question, instead of Be7 why does Black not play Nxe4 as e4 is not defended?
Thanks
William
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12
votes
4 answers
Where can I watch World Chess Championship 2021?
What are the possible streams that I can watch World Chess Championship 2021 from 24th of November to 16th of December (any online platform and television broadcast)?
If possible, please provide information about who will be the casters and whether…
Minot
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12
votes
1 answer
What is an "ugly" move?
In the video "ugly defense", GM Grigoyan called the move Knight g3-h1 an "ugly move", though objectively speaking, Nh1 may be the best move for white in this position.
[fen "r1b2rk1/b1p4p/p1pp1qp1/P7/4P1n1/3N2N1/1PP2PPP/R1BQ1RK1 w - - 1 1"]
May I…
Zuriel
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12
votes
1 answer
{Landa vs Zhu Chen, Bad Wiessee, 2006} Lichess giving a +4.7 to white. Why?
Here is the lichess study for the game which is often presented as study.
I am curious here, as to why White is given a strong advantage, even though the material is equal and Black has a lot more active pieces. The Black squared bishop (of Black)…
Soham
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12
votes
1 answer
Have there been any titled North Korean players?
I recently played against a player with a North Korean flag on Chess.com. I assume they just picked that flag for a laugh or something, but it did get me wondering; have there been any titled North Korean players? If not, have any North Koreans…
Ryan_L
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12
votes
1 answer
FIDE Laws: what exactly does 'colours reversed' in 7.3 mean?
Article 7.3 of the FIDE Laws reads:
If a game has started with colours reversed then, if less than 10
moves have been made by both players, it shall be discontinued and a
new game played with the correct colours. After 10 moves or more, the
game…
Andrew
- 151
- 5
12
votes
2 answers
Why does black gain from this "center fork trick"?
In the following position, Bc4 by white is evaluated as a bad move that can be punished by ...Nxe4.
Although I can see why it tactically works, I fail to see how the resulting position favors black. Do you have any insights about why it's better for…
aherve
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12
votes
1 answer
How to solve proof games?
The following question deserves to be asked!
"I see a lot of proof game problems, where I am given a diagram and have to find the unique way to reach that position in the specified number of moves. They look fun, but difficult. Can I have some tips…
Laska
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- 76
12
votes
2 answers
What is the physical response to a high level chess game?
Chess is used as an example of how the body can be influenced purely by brain activity:
In the middle of a chess Grand Master tournament these people are maintaining blood pressure for 6 hours' running that you only see in a marathon runner
These…
stevec
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12
votes
11 answers
Do chess programmes keep a history of the full board for each move?
I am creating a chess GUI for UCI engine as a hobby. I keep the history of moved positions (e.g., (4,6) -> (4,4) for the pawn in front of the white king moving forward 2 squares) and the type of the moved piece (e.g., pawn), and some minor states…
Damn Vegetables
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