lichess.org
Donate

Retrograde Chess Puzzles

Well duuh, we have variants, so why not a chess puzzle variant like retrograde!

Here's one of my favs:
https://imgur.com/d3WfnCu
What piece is missing on h4?
@edot12345 said in #2:
> queen!
N'a-a-aaa! No random guessing (also you forgot the color). Honestly the answer to this is like a half page long
@edot12345 said in #4:
> whats retrograde?
It's solving the puzzle backwards like a detective. The given position on the board is reached after a series of legal moves. We're tracing the clues left behind by the pieces while getting to the current state. Basically any retrograde puzzle will ask you to explain how the events transpired -- rather than seeing into the future (White to play and win / Mate in 3, etc.), the idea here is to time travel to the past.

So, in the example above, some stuff happened on the board before that position could be reached (all moves are legal). And a certain piece had the privilege to remain on the board on h4. What is it?
@edot12345 said in #4:
> whats retrograde?

Typically you are given a position and asked what happened in the game. Sometimes there are interesting variations, and not just what happened in the game. For example, a position may have three white knights, and the problem may say one of the knights is actually a black knight, which one? Or a question may ask on what square black bishop was captured. Take a look at Raymond Smulyan's book Chess Mysteries of Arabian Knights (and there is a sequel if I remember). Once upon a time I was quite hooked to that book. It is amazing.
@Arckai said in #1:
> Well duuh, we have variants, so why not a chess puzzle variant like retrograde!
>
> Here's one of my favs:
>
> What piece is missing on h4?

Some weird position. Lol. Black is in check, but how the rook got there in d6 without being illegal. Black could not move a pawn, or put the king in check. Uhm...or this is based on a chess variation? Not standard?
@magicsacrifblunder said in #8:
> Some weird position. Lol. Black is in check, but how the rook got there in d6 without being illegal. Black could not move a pawn, or put the king in check. Uhm...or this is based on a chess variation? Not standard?
Fully standard. Nice nice though, you're having a valid report on the position so far
<Comment deleted by user>

This topic has been archived and can no longer be replied to.