Approximately 500 years ago the option to move a pawn forward two squares on its first move to speed up the game was introduced along with the e.p. rule. If you have a pawn on the fifth rank and an adjacent pawn moves up two squares you can capture that pawn as if it only moves forward one square. But you must do this on your next turn because your opponent could move the same pawn forward if you did anything else. But what if you did some thing that required your opponent to answer that move, say a check, threat of mate, or even a series of checks. i.e. _c5 b5 (the b5 could be captured e.p.) 1. B moves giving check, B moves interposing 2. BxB+ KxB 3. Queen moves giving check, Queen interposing 4. QxQ KxQ 4 moves have been played and my opponent could NEVER move from the hypotheical b6 to b5 square. Even though e.p. is not a legal move within the rules of chess isn't this an oversite to say the least.
I can't decide whether this is a history lesson, a chess puzzle, or a question to be answered...
Approximately 500 years ago the option to move a pawn forward two squares on its first move to speed up the game was introduced along with the e.p. rule. If you have a pawn on the fifth rank and an adjacent pawn moves up two squares you can capture that pawn as if it only moves forward one square. But you must do this on your next turn because your opponent could move the same pawn forward if you did anything else. But what if you did some thing that required your opponent to answer that move, say a check, threat of mate, or even a series of checks. i.e. _c5 b5 (the b5 could be captured e.p.) 1. B moves giving check, B moves interposing 2. BxB+ KxB 3. Queen moves giving check, Queen interposing 4. QxQ KxQ 4 moves have been played and my opponent could NEVER move from the hypotheical b6 to b5 square. Even though e.p. is not a legal move within the rules of chess isn't this an oversite to say the least.