Questions tagged [solving]

For questions related to the solving, solvability, or proved solutions to chess and chess variants.

21 questions
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Is chess a solved game?

Chess is a zero-sum game of limited decisions. The number of possible moves at any given point, and the number of possible states of the board, are all finite. Tic-Tac-Toe, is one of the easiest examples of a solved game. I can't remember how many…
Tobi Alafin
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What is the deepest Stockfish evaluation of the standard initial position that has ever been done?

Letting Stockfish (14+ NNUE) run for several minutes with lichess' analysis tool on the initial position of a standard chess board lets it reach depths beyond 30 moves, I suppose letting it run for many hours or days would result in an even deeper…
2080
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Is it possible Alpha Zero will eventually solve chess?

I googled this question and ended up here. From previous questions, it seems Alpha Zero has not solved chess yet and if it does it will take a very long time. Nonetheless, it may be possible one day. I am wondering whether the programmers, or…
user1885504
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Is the result in mini-chess known with perfect play?

I do not know, if "mini-chess" is the official name of the game I am talking about. In mini-chess, the players only start with the pawns (In particular, there are no kings!) The players play the moves alternate, as in the usual chess. If a player…
Peter
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14
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How to weakly solve Tiger Hunt, Atlantis Chess and Peasants' Revolt

Tiger Hunt is a chess variant where an entire army without a queen fight against a royal amazon (tiger, queen+knight). I believe it is certainly a win for the army just like Marahaja and Sepoys. I also believe this can easily be solved. Perhaps we…
Ying Zhou
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10
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Has loser chess been solved?

Loser chess has a benefit of sorts. There are many turns where moves are forced. So my question is, has it been solved? I'd say that the move tree is much smaller than chess. If not: How much would it weight? Have there been any studies on the…
MikhailTal
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10
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Is there a mathematical theorem that you can use to win a chess endgame?

Have mathematicians created any theorem that determines the outcome of a endgame? If so, how could it be used to win a specific endgame?
user26887
9
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1 answer

(Unbalanced) Double-Move chess - can white force a win?

I'm not talking about Marseillais chess (which is similar, but rules are added to reduce the advantage of the white), which is sometimes also called "balanced double-move chess". In a Double-Move chess both players move two times instead of once.…
Vepir
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How to solve atomic chess?

Since losing chess is almost solved, I believe that the next step towards solving chess should be atomic chess, which has less forced moves than losing chess but still a lot more than regular chess. What are the practical steps we should take…
Ying Zhou
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6
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Is there a forced win in CastleChess?

Is there a forced win for White or Black in the chess variant CastleChess? The rules are explained in this post on an obscure blog named “Cinquante signes”, although it is originally from chessvariants.com. The rules are the same as the orthodox…
Eric ANGELINI
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5
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As Black, what is the fastest way to beat Gnu Chess on easy mode?

This is more of a puzzle. As far as I can ascertain, Gnu-Chess on easy mode always plays the same movesm What is the least amount of moves required to beat Gnu Chess on easy mode? Just to clarify, you are playing as Black, Gnu Chess is playing as…
Anon
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About solving Atomic Chess

Is it possible to weakly solve Atomic Chess as a win for White? I've analysed a few lines good for White, but I am not sure about a general solution.
user24344
4
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1 answer

Variant where White cannot lose?

I was pondering an asymmetrical variant where White's king is just a regular piece that moves like a normal king, but can be captured without consequence (and hence check for White does not exist). The game would consist of Black attempting to avoid…
Steve Bennett
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Non-Tactical Puzzles

Its surprisingly hard to find chess puzzles where the solution is not necessarily tactic resulting in checkmate or a heavy win of material. The problem with these tactical puzzles is that they do not simulate a real game where the best move may be…
4
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How big is the advantage for white in the "back-rank-game"?

Consider a chess variant in which normal chess rules apply, with one exception. The player that is able to bring a piece or a pawn onto the opponent’s back rank, which would be the 8th rank for White and the 1st rank for Black, wins immediately. The…
Peter
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