History of Chess

	Revision 67 . . (edit) December 12, 2001 1:21 am by Vulture [changed 50 move rule]
	Revision 66 . . (edit) December 12, 2001 1:08 am by Lee Daniel Crocker
	Revision 65 . . December 12, 2001 12:59 am by (logged).44.114.xxx
	Revision 64 . . December 11, 2001 9:14 pm by (logged).37.61.xxx
	Revision 63 . . December 7, 2001 8:18 am by AxelBoldt [+John Cage]
	Revision 62 . . December 5, 2001 8:13 am by (logged).132.75.xxx [minor rearrangement - more chess stuff to fill in]
	Revision 61 . . December 5, 2001 6:30 am by AxelBoldt [copyedit]
	Revision 60 . . December 5, 2001 5:54 am by Vulture
	Revision 59 . . December 2, 2001 2:07 am by Forgotten gentleman [added bit on Kriegspiel]
	Revision 58 . . December 1, 2001 2:33 am by Cwitty [avoid indicating that the list of chess variants is comprehensive]
	Revision 57 . . November 29, 2001 1:11 am by (logged).146.101.xxx [pawns promote to pieces of their own color; +detail on use of chess clocks]
	Revision 56 . . November 29, 2001 12:31 am by AxelBoldt [corrected: pawn promotion, 50 move rule, 3-repetition draw rule is unrelated to Ko threats]
	Revision 55 . . (edit) November 28, 2001 1:26 pm by GregLindahl
	Revision 54 . . November 28, 2001 1:24 pm by GregLindahl [early chess manual]
	Revision 53 . . November 28, 2001 9:28 am by Damian Yerrick [info about castling and en passant; does chess have ko threats?]
	Revision 52 . . (edit) November 28, 2001 12:22 am by AxelBoldt
	Revision 51 . . November 27, 2001 8:16 pm by (logged).9.128.xxx [copyedit - removing my own verbal diahorrea :)]
	Revision 50 . . November 27, 2001 1:45 am by AxelBoldt ["Tandem" is more commonly known as "bughouse chess"]
	Revision 49 . . November 26, 2001 6:59 am by (logged).9.128.xxx
	Revision 48 . . November 26, 2001 1:35 am by AxelBoldt [More history; famous players]
	Revision 47 . . (edit) November 5, 2001 2:05 pm by (logged).4.254.xxx

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Difference (from prior major revision) (minor diff, author diff)

Changed: 17c17

*If there is no possibility for either player to mate the opponent.

*If there is no possibility for either player to mate the opponent (for example, because there are insufficient pieces remaining).

Changed: 20,22c20,22

*If fifty moves have been played by each player without a piece being taken or a pawn moved *If the same board position has been repeated three times, with the same player to move and all pieces having the same rights to move (castling and en passant, see below) *With less than two minutes left in the last time period a player can request a draw if the opponent makes no effort to win with 'normal means'. This is decided by an arbiter and only used in tournament play.

*If fifty moves have been played by each player without a piece being taken or a pawn moved. *If the same board position has been repeated three times, with the same player to move and all pieces having the same rights to move (castling and en passant, see below). *With less than two minutes left in the last time period a player can request a draw if the opponent makes no effort to win with "normal means". This is decided by an arbiter and only used in tournament play.

Changed: 27,31c27,31

*moving a piece from one square to another empty square *moving a piece to a square occupied by an opposing piece and removing the enemy piece (capture) *castling (see below) *promotion (see pawn below) *en passant (see pawn below)

*Moving a piece from one square to another empty square. *Moving a piece to a square occupied by an opposing piece and removing the enemy piece (capture). *Castling (see below). *Promotion (see pawn below). *En passant (see pawn below).

Changed: 64c64

In tournament play and for quick chess, a [chess clock]? is used; each player presses a button after every move and the clock keeps track of the time remaining for each player. If a player runs out of time before a checkmate is reached, that player loses the game. In correspondence chess, the moves are sent by mail and every player is given a set number of days per move.

In tournament play and for quick chess, a [chess clock]? is used; each player presses a button after every move and the clock keeps track of the time remaining for each player. If a player runs out of time before the game is decided in some other way, that player loses the game. In correspondence chess, the moves are sent by mail and every player is given a set number of days per move.

Removed: 75,76d74