A move that doesn't respect the rules of chess.
7
votes
3answers
474 views
illegal (?) move can put a king in check?
I was playing a game with a friend online. A situation came up where he put me in check with his bishop, and I moved my rook to block it. His king was on the g file and my rook was on g2. The website ...
5
votes
1answer
88 views
Why isn't the active color allowed to be in check in a FEN legal position?
The title says it. Reading up on how to describe the position of a board, all of the requirements make sense (like two kings not being on adjacent squares and so on) except for the active color being ...
5
votes
2answers
165 views
How to know when a FEN position is legal?
I am doing a personal project, where at one point I need to validate the FEN position, I started with some basics checks, such as check if there are kings and making sure there aren't any extra rows ...
14
votes
2answers
327 views
I made an illegal move. What happens?
Especially in blitz or bullet games, it is possible that a player makes an illegal move, for example castles through check.
If the opponent does notice the illegal move, then as far as I know the ...
