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  2. Two knights endgame - Wikipedia

    en.wikipedia.org/wiki/Two_knights_endgame

    In contrast to a king and two bishops (on opposite-colored squares), or a bishop and a knight, a king and two knights cannot force checkmate against a lone king (however, the superior side can force stalemate [1] [2]). Although there are checkmate positions, a king and two knights cannot force them against proper, relatively easy defense. [3]

  3. Bishop and knight checkmate - Wikipedia

    en.wikipedia.org/wiki/Bishop_and_knight_checkmate

    A method for checkmate applicable when the lone king is in the corner of the opposite color from the bishop (the "wrong" corner, where checkmate cannot be forced), was given by François-André Danican Philidor in the 1777 update [5] to his famous 1749 treatise, L'Analyse des Échecs. [6]

  4. List of chess variants - Wikipedia

    en.wikipedia.org/wiki/List_of_chess_variants

    There are a number of variants which use the empress (rook + knight) and princess (bishop + knight) compound pieces. The empress is also called marshall or chancellor. [22] The princess is also called cardinal, archbishop, janus, paladin, or minister. [23] Another compound piece is the amazon (queen + knight). To adapt to the new pieces, the ...

  5. Lichess - Wikipedia

    en.wikipedia.org/wiki/Lichess

    Lichess (/ ˈ l iː tʃ ɛ s /; LEE-ches) [3] [4] is a free and open-source Internet chess server run by a non-profit organization of the same name. Users of the site can play online chess anonymously and optionally register an account to play rated games .

  6. Windmill (chess) - Wikipedia

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

    In chess, a windmill (or seesaw) [1] [2] is a tactic in which a piece repeatedly gains material while simultaneously creating an inescapable series of alternating direct and discovered checks. Because the opponent must attend to check every move, they are unable to prevent their pieces from being captured; thus, windmills, while very rare, tend ...

  7. Lucena position - Wikipedia

    en.wikipedia.org/wiki/Lucena_position

    2. Rd4! Now, if Black plays a waiting move, such as 2... Ra1. hoping to harass the white king with checks again as in the above variation, White continues 3. Kc7 Rc1+ 4. Kb6 Rb1+ 5. Kc6 Rc1+ Or 5.Ka6 Ra1+. 6. Kb5 Rb1+ 7. Rb4! The black rook can no longer check the white king without exchanging rooks, and Black cannot prevent the pawn from ...

  8. Online chess - Wikipedia

    en.wikipedia.org/wiki/Online_chess

    P. V. Nandhidhaa playing online chess on Chess.com A chess game on Lichess that ended in a smothered mate. Online chess is chess that is played over the Internet, allowing players to play against each other. This was first done asynchronously through PLATO and email in the 1970s.

  9. Légal Trap - Wikipedia

    en.wikipedia.org/wiki/Légal_Trap

    ) without succumbing to a checkmate in two moves, 5...Nxe5 would win the white knight (for the pawn) and protect the bishop on g4. Instead, with 5.h3, White "puts the question" to the bishop which must either retreat on the c8–h3 diagonal, capture the knight, be captured, or as in this game, move to an insecure square.