# Questions tagged [solving]

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

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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?
139 views

### What do you think will happen when chess gets solved? [closed]

When some ultra strong computer discovers the perfect game of chess, will chess as a game die?
• 9
1 vote
107 views

### Is it computationally feasible to find a board with proven outcome, reachable in 2 plies?

As is well known, neither the 0-ply game, the starting state, nor 1-ply games, all of white's first moves, have rigorously proven outcomes. Not even first moves for white considered very bad (1. g4) ...
1 vote
84 views

### Knight Moves Around the Board [duplicate]

It is well known that a lone knight can move all around the board covering each square once and only once. Is this possible when the lone knight starts only on certain squares ? How many unique ...
• 407
257 views

### What is the solution to single-check chess?

Single-check chess is a variant where the first person to give check wins. There is a website that claims it has been solved, with white winning in four moves; however, I cannot find the moves ...
10k views

### 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. ...
• 183
180 views

### 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 ...
609 views

### (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-...
• 302
387 views

### 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 ...
• 3,236
1 vote
271 views

### If there was a perfect play from both sides, but each player was allowed to do 2 moves every time, would white win?

Imagine a game where players are allowed 2 moves instead of one. If there were perfect play from both sides, would White win?
• 35
1k views

### Can 5D chess be solved?

An interesting new variant of chess has emerged, showing that chess will always be fresh-5D chess. I mostly play the 5x5 version, but the positions do not rocket out of control like in the standard ...
• 601
2k views

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.
49k views

### 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 ...
• 561
890 views

### 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 ...
• 385
1k views

### 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. ...
• 385
652 views

### 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 ...
• 3,236
2k views

### 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 ...
• 3,315