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  2. Glossary of chess - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_chess

    A double check necessarily involves a discovered check. By its nature a double check cannot be met by interposing a defending piece in the line of attack, or by capturing an attacker; when subjected to a double check, the attacked king must move, which makes the double check especially powerful as an attacking tactic. [129] doubled pawns

  3. Double check - Wikipedia

    en.wikipedia.org/wiki/Double_check

    The result is a double check even though the white pawn does not give check: one check is given by the rook, discovered by the capturing pawn's move; the other by the bishop, revealed by the captured pawn's removal. Such a double check is extremely rare in practical play, but it is sometimes found in chess problems.

  4. Check (chess) - Wikipedia

    en.wikipedia.org/wiki/Check_(chess)

    Double check. A double check is a check from two pieces to the opponent's king in a single move. This happens when a moved piece attacks the king, resulting in a second piece giving check by discovered check. It can also happen, though very rarely, when an en passant capture opens two lines of attack simultaneously. A double check cannot be ...

  5. Double check (disambiguation) - Wikipedia

    en.wikipedia.org/wiki/Double_check_(disambiguation)

    Double check, a chess term; check delivered by two pieces simultaneously; Double Check, a sculpture by John Seward Johnson II; Double Check, a novel in the Traces series; Double-checked locking, a software design pattern; Double check valve, a backflow prevention design

  6. Discovered attack - Wikipedia

    en.wikipedia.org/wiki/Discovered_attack

    The result is a double check: One check is given by the rook, discovered by the capturing pawn's move; the other by the bishop, created by the captured pawn's removal. (The bishop’s check is not a discovered check, as the black pawn is captured and not moved.) Such a check is extremely rare in practical play, but it is sometimes found in ...

  7. Cross-check (chess) - Wikipedia

    en.wikipedia.org/wiki/Cross-check_(chess)

    A cross-check occurs from time to time in games. It is an essential tactic in winning endgames such as two queens versus one queen, or queen and pawn versus queen, where it is used to stop a series of checks from the opponent and force the exchange of queens.

  8. OpenThesaurus - Wikipedia

    en.wikipedia.org/wiki/OpenThesaurus

    The cause for the start of the project was the arrival of OpenOffice.org in 2002, which was missing the thesaurus of its parent, StarOffice, due to its licensing.. OpenThesaurus filled that gap by importing possible synonyms from a freely available German/English dictionary and refining and updating these in crowdsourced work through the use of a web ap

  9. Bughouse chess - Wikipedia

    en.wikipedia.org/wiki/Bughouse_chess

    Bughouse chess (also known as exchange chess, Siamese chess (but not to be confused with Thai chess), tandem chess, transfer chess, double bughouse, doubles chess, cross chess, swap chess or simply bughouse, bugsy, or bug) is a popular chess variant played on two chessboards by four players in teams of two. [1]