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The chessboard paradox [1] [2] or paradox of Loyd and Schlömilch [3] is a falsidical paradox based on an optical illusion. A chessboard or a square with a side length of 8 units is cut into four pieces. Those four pieces are used to form a rectangle with side lengths of 13 and 5 units.
The openings were published in five volumes of ECO, with volumes labeled "A" through "E". This article uses algebraic notation to describe chess moves. This list is incomplete ; you can help by adding missing items .
The opening is the initial stage of a chess game. It usually consists of established theory.The other phases are the middlegame and the endgame. [1] Many opening sequences, known as openings, have standard names such as "Sicilian Defense".
Four-dimensional space (4D) is the mathematical extension of the concept of three-dimensional space (3D). Three-dimensional space is the simplest possible abstraction of the observation that one needs only three numbers, called dimensions , to describe the sizes or locations of objects in the everyday world.
The defense is named for János Balogh (1892–1980), who was a Hungarian International Master of correspondence chess, and a strong master at over-the-board chess. The opening is rarely seen today because it weakens Black's kingside somewhat and often results in a backward e-pawn and/or a hole on e6 after Black's light-square bishop is ...
In chess, a trap is a move which tempts the opponent to play a bad move. Traps are common in all phases of the game; in the opening , some traps have occurred often enough that they have acquired names.
The Four Pawns Attack in the King's Indian Defence is a chess opening that begins with the moves: . 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4. White immediately builds up a large pawn centre in order to gain a spatial advantage.
The Clemenz Opening is a chess opening beginning with the move: 1. h3. This opening is named after Hermann Clemenz (1846–1908), an Estonian player. [1] It is considered an irregular opening and is classified under the code A00 (miscellaneous first moves by White) in the Encyclopaedia of Chess Openings.