Problem 315. Valid Chess Moves

Created by Alan Chalker

Solve Later

Using standard Algebraic notation ('' for a pawn), given previous move and a next move, output true if it is a valid move or false otherwise. Assume there are no other pieces on the chess board, that the piece can be either black or white (whichever generates a valid result) and the previous move was valid. Examples:

Moving a pawn one space:
('c5','c6') -> true

Moving a bishop non-diagonally:
('Bb7','Bd7') -> false

Solve

Solution Stats

170 Solutions
35 Solvers

Last Solution submitted on May 07, 2020

Last 200 Solutions

Problem Comments

1 Comment

1 Comment

Jean-Marie Sainthillier on 20 Jul 2012

Hard !

Solution Comments

Solution 138606

1 Comment

1 Comment

Michael on 19 Apr 2020

Brilliant!

Solution 39064

3 Comments

3 Comments

@bmtran (Bryant Tran) on 13 Feb 2012

this doesn't take into account captures or moving a pawn 2 moves from its starting position. should it?

@bmtran (Bryant Tran) on 13 Feb 2012

and the occasional other weird rules...

Alan Chalker on 16 Feb 2012

Captures and pawn 2 moves and castling and such aren't possible based upon the assumptions I stated (i.e. no other pieces on the board, the previous move was valid, etc)

Problem Recent Solvers35

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chess

Problem 315. Valid Chess Moves

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Last 200 Solutions

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Problem Recent Solvers35

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Problem 315. Valid Chess Moves

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers35

Suggested Problems

More from this Author39

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