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Questions tagged [retrograde-analysis]

Retrograde analysis is the method of deducing information by working backwards from a given position or outcome. This information can be about past positions of the same game, or may contain forward content, such as optimal play.

In the realm of chess, retrograde analysis is prominent in the creation of endgame tablebases, as well as in composed chess problems (known as retros) in which the goal is to determine what move or sequence of moves immediately led up to a given position.

73 questions
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Creating the current position having the rest of the game

It's a question a friend of mine brought up and I found intriguing. Let's say you have the records of a game from a certain move to the end, using standard notation (i.e. Qf6). Either assuming random play or strong play (which is really hard to…
Nescio
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When can you tell which pieces are 'White' from a position where the pieces are colored red and green and you know whose move it is?

Suppose you come across a chessboard where the pieces are colored red and green and there are no labels on the squares. You don't know which move number it is. What are the positions where, by only knowing whose move it is, you can determine which…
michaelc35
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Missing move in a chess match due to lousy annotation

I am a beginner in championships (well, and in chess in general). The other day I played a match that I can't analyze because there is an error in the annotation sheet. [FEN ""] 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bc4 d5 5. Bb3 Nf6 6. d4 Bg4 7. O-O…
Ramiro Rego Álvarez
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Generate an entire chess game up to a position

I recently found a chess problem YouTube video with this position. [FEN "r4rq1/5p1p/p5kn/R1B1Q1b1/6p1/5p2/PNP2P2/1K6 w - - 0 1"] I want to turn this position into an entire game of chess. Does anybody know of a way that I can generate moves that…
SteepAtticStairs
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