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Chess software comes in different forms. A chess playing program provides a graphical chessboard on which one can play a chess game against a computer. Such programs are available for personal computers, video game consoles, smartphones/tablet computers or mainframes/supercomputers.
Lichess was founded in 2010 by French programmer Thibault Duplessis. [8] [9] The software running Lichess and the design are mostly open source under the AGPL license [10] and other free and non-free licenses. [11] The name Lichess is a "combination of live/light/libre and chess". [12]
Video explaining the bishop and knight checkmate using the W manoeuvre; Video explaining the bishop and knight checkmate using Delétang's triangle method; A remarkable diploma thesis in Spanish about the bishop and knight checkmate with many game examples in the annex (Trabajo Final del Diplomado Fundamentos Científicos y Metodológicos del ...
Chessbase (for PC) is a common program for these purposes amongst professional players, but there are alternatives such as Shane's Chess Information Database (Scid) [14] for Windows, Mac or Linux, Chess Assistant [15] for PC, [16] Gerhard Kalab's Chess PGN Master for Android [17] or Giordano Vicoli's Chess-Studio for iOS. [18]
Online chess is often played faster, with 93.8% of live chess games on Chess.com being played with a time control of 10 minutes per side or faster. [18] International Master Anna Rudolf said that "online chess' shift to speed chess has brought excitement to the game." [10]
Some examples of this may be that the king and queen are flipped, or the knight on the b-file is traded with the bishop on the f-file. Double Chess by Julian Hayward. Double chess: Two full armies per side on a 12×16 board, the first to mate an enemy king wins. Pawns advance up to four steps on their first move.
The two knights endgame is a chess endgame with a king and two knights versus a king. 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]).
The bishop and knight mate is one of the four basic checkmates and occurs when the king works together with a bishop and knight to force the opponent king to the corner of the board. The bishop and knight endgame can be difficult to master: some positions may require up to 34 moves of perfect play before checkmate can be delivered.