Glorfindel
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It's checkmate in 20 moves. White's queens circle around the board giving checks, and Black interposes horizontally/vertically moving pieces. Black only has one choice because the other piece is ...

You are right, this is nonsense. From the FIDE laws of chess, article 5: The game is drawn when the player to move has no legal move and his king is not in check. The game is said to end in ‘...

Sam Loyd, a famous puzzle composer, created this 10 move, 19 ply, stalemate game over 100 years ago. I found it via Google, in this post by AndersElborg on chess.com. Most black pieces are blocked, ...

As @Ibrahim explains, you'll win the queen back, but after that White can even take the pawn on f7: [FEN ""] [StartPly "10"] 1. e4 e5 2. Qf3 c6 3. Bxc4 Nf6 4. d3 d6 5. Bg5 Bg4 6. ...

The website 2700chess.com has a database with the FIDE ratings (from May 1st, 2019). Their search form only offers the option to show the top 50 or 100 players satisfying the search results, but it's ...

Yes - the less a position looks like a real chess game, the harder it is to spot if it is illegal or not. Sometimes, retrograde analysis is needed to prove a position can be reached in a legal way. ...

No, this is not possible. for example move the piece, don't press the clock and then resign? In particular, that loophole is explicitly covered by the rules: 6.2.1 During the game each player, ...

It's wrong because the rules say so: 2.1 The chessboard is composed of an 8 x 8 grid of 64 equal squares alternately light (the ‘white’ squares) and dark (the ‘black’ squares). The chessboard is ...

The position given by Akavall is indeed a draw by perpetual, but it's a bit difficult to see because White has many different options at some moves. They can even choose to sacrifice the h2 queen, ...

It is a nice little puzzle: 3k4/3P4/3Q4/8/8/8/8/4K3 w - - 3 13 1. Qd5 Kc7/Ke7 2. d8=Q# 1-0

waste their time If it's clear that they are able to win within the time they have left, this could be considered bad sportsmanship. However, in those situations the number of remaining checks is ...

I haven't seen the series, but this was a quite common practice known as adjournment. It is indeed legal to ask for outside help, in the form of teammates and even computer programs during adjournment....

According to the FIDE rules, 6.6 At the time determined for the start of the game White’s clock is started. In over the board chess, it's usually Black who does this (you can't have an arbiter ...

Black would like to continue their development with Nf6 and castling short. g4 discourages Nf6; after g5, the knight is forced back. It also prepares Bg2, which protects d5 without giving up the pin ...

As @chakerian's calculations show, 40 moves is the minimum. After a bit of puzzling, I found the solution. [FEN ""] 1. a4 {First, we need to get the rooks in position. They'll be hard to ...

There is no mention of excluding the regular starting position in Appendix F. of the FIDE Laws of Chess, so it's really Chess960 and not Chess959. I can imagine that there are chess programs or ...

It'll depend on the rest of the position. If it's relatively open, chances are you can keep the opponent's king in the center and launch an attack. This might well be a decisive advantage; preventing ...

If the engine can choose between getting mated in 2 or mated in 3, it'll choose the line where it is mated in 3 (even though the mate in 2 might be 'more difficult' to spot for humans). It can't ...

Unless this is a trick question, I'd say never: 3.8.2 [] This is a move of the king and either rook of the same colour along the player’s first rank, counting as a single move of the king and ...

The 'Halloween Gambit' or 'Müller-Schulze Gambit' is a knight gambit in the (often characterized as dull) Four Knights Game: [FEN ""] [White "Blokje"] [Black "Platypussy"] [StartPly "7"] 1. e4 e5 2. ...

Black's queen is the only defender for the mate on f7 (the knight on e5 is pinned). This makes Bxg5 a very attractive move, as the black queen has nowhere to go (the only safe spot, Qf8, is met with ...

Generally speaking, the side with the most pawns will win. The tempo provided by the extra pawn is usually enough to gain opposition and access to the key squares. Doubled pawns don't matter for this, ...

This depends on a lot of things, but most importantly: your playing level and the topic. For example, if it is an opening book, it heavily depends on the opening. Some opening variations which are ...

[FEN "R5k1/5ppp/8/2r5/1b6/8/5PPP/6K1 b - - 0 1"] 1... Rc8 2. Rxc8+ Bf8 This is an example of what Tim Krabbé calls an 'unguarded guard' - a linepiece checks, and a piece interposes on an unguarded ...

Those aren't scores; there are just three possible scores in chess: White wins, Black wins, and draw. Those are evaluations of the chess engine; a score of +0.62 means the engine thinks White's ...

First, Then Meanwhile [FEN "8/8/8/2p5/1pp5/brpp4/qpprpK1P/1nkbn3 w - - 0 1"] 1. Kxe1 Qa1 2. h4 Qa2 3. h5 Qa1 4. h6 Qa2 5. h7 Qa1 6. h8=N Qa2 7. Ng6 Qa1 8. Ne5 Qa2 9. Nxc4 Qa1 10. Na5 c4 ...

Wikipedia says the following: Exclamation points ("!") indicate good moves—especially ones which are surprising or involve particular skill. Hence annotators are usually somewhat ...

but that will not affect the game due to his/her hopeless position Well, if your opponent has a hopeless position, they would be better off accepting the 'automatic' draw offer which is implied ...