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A Double Check is a X-ray related chess tactic where two pieces deliver check simultaneously, either most often by one direct check in conjunction with a discovered check, or in exceptional rare cases by two discovered checks after an en passant capture. Only king moves may legal in double check evasion, which is usually considered by a special case move generator even if not strictly legal.
See also
- Check Extensions
- Checks and Pinned Pieces (Bitboards)
- Discovered Attack
- Discovered Check
- Double Attack
- Square Attacked By
- Tactics
- X-ray
- X-ray Attacks (Bitboards)
Forum Posts
- Request for InDoubleCheck PERFTS EPDs by Chris Whittington, CCC, May 02, 2020 » Perft