Moves one piece to reveal the attack of the piece behind it.
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What's in this lesson?
Moves one piece to reveal the attack of the piece behind it.
In a discovered attack the front piece moves away and reveals the attack of the piece behind it. Here, if the bishop leaves the e-file, the rook gives check to the black king. What if the bishop takes something as it goes?
If the moving piece also gives check, it's called a double check. In a double check the only escape is to move the king; blocking or capturing doesn't help.