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Knight (chess)

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The knight is a unique piece used in the game of chess. It is one of the most recognizable figures on the board. This piece is valued at approximately three pawns. This makes its strength roughly equal to a bishop. Unlike most other pieces, the knight possesses the special ability to jump. It can leap over other pieces to reach its destination. This makes it very useful when the board is crowded with other pieces.

The knight moves in a very specific pattern. It moves two squares vertically and one square horizontally. Alternatively, it can move two squares horizontally and one square vertically. This movement creates the shape of a capital L. Because of this pattern, a knight always changes the color of its square. If it starts on a light square, it must land on a dark square. A knight can have up to eight different moves available at once. This number changes depending on where the knight is located on the board.

Location is vital for a knight's effectiveness. A knight is strongest when it is in the center of the board. In these central positions, it can access all eight of its possible moves. However, the knight is weakest when it is placed in a corner. In a corner, its mobility is reduced to only two possible moves. Players often try to place knights on "outposts." An outpost is a square where the knight is supported by its own pawns. In these spots, the knight becomes a very powerful tool.

The knight has a very long history in gaming. It has the oldest defined movement of any piece in chess. It was first introduced in an Indian game called chaturanga around the 6th century. Since that time, its movement rules have not changed. Many different cultures have developed their own versions of the knight. In the game of xiangqi, a piece called the ma moves similarly. However, the ma must pass through an adjacent unoccupied square rather than jumping. In shogi, the keima moves like a knight but is more restricted. It can only move two squares forward and one square sideways.

Endgames, which are the final stages of a game, show different sides of the knight. A knight is often less useful than a bishop in endgames with pawns on both sides of the board. This is because a knight can only control one part of the board at a time. It also takes many moves to reposition itself. However, if all the pawns are on only one side of the board, knights can be superior. A knight can control squares of both colors, whereas a lone bishop is stuck on one color. In some endgames, two knights can even form a "drawing fortress" against a queen.

There are specific rules regarding how knights can finish a game. A king and a single knight cannot force a checkmate against a lone king. This results in a draw. Even with two knights, a checkmate cannot be forced against a lone king unless the opponent makes a mistake. This is different from a bishop and knight combination, which can force a checkmate. There is a rare pattern called Stamma's mate. This occurs when a king is trapped in a corner by its own pawn. In such rare cases, a king and knight can force a mate.

Mathematics and notation also involve the knight. Mathematicians study the "knight's tour." This is a problem where a knight must visit every square on the board exactly once. In modern algebraic notation, players use the letter N to record knight moves. The letter K is reserved for the king. In older descriptive notation, the abbreviation Kt was used. Some people also call the piece a "horse" or a "jumper." These names reflect its physical appearance and its unique jumping ability.

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