What is Double check in chess?
Two pieces give check at the same time via a discovered attack.
The only legal response to a double check is to move the king - you can't block or capture both checkers - which makes it one of the most powerful tactics in chess.
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- Double attackOne move creates two threats that the opponent cannot both stop.
- Zwischenzug (in-between move)An unexpected move inserted before the 'expected' recapture.
- DeflectionForcing a defending piece away from the square or piece it protects.
- DecoyLuring an enemy piece (often the king) to a bad square.
- OverloadingGiving one defender too many jobs so it can't cover them all.
- Removing the defenderCapturing or chasing away the piece that guards an important target.