Exchange (chess) to as a "recapture". Commonly, the word "exchange" is used when the pieces exchanged are of the same type or of about equal value, which is an "even exchange". According to chess tactics, a bishop and a knight are usually of about equal value. If the values of the pieces exchanged are not equal, then the player who captures the higher value of piece(s) can be said to be "up the exchange" or "wins the exchange", while the opponent who captures the lower value of piece(s) is "down the exchange" or "loses the exchange". Exchanges occur very frequently in chess,
History of chess theory is no longer considered tenable. In Sanskrit, "chaturanga" (चतुरङ्ग) literally means "having four limbs (or parts)" and in epic poetry often means "army" (the four parts are elephants, chariots, horsemen, foot soldiers). The name came from a battle formation mentioned in the Indian epic Mahabharata. The game chaturanga was a battle-simulation game which rendered Indian military strategy of the time. Some people formerly played chess using a die to decide which piece to move. There was an unproven theory that chess started as this dice-chess and that the gambling and dice aspects of the game were removed because of