Lines Matching refs:position
286 that doesn't start from the usual initial position.
313 A percent sign appearing in any other place other than the first position in a
684 special case where a game starts from a position where Black is the active
786 a position with two white knights, one on square c3 and one on square g1 and a
1121 A value of "1" indicates that the game started from a set-up position; this
1122 position is given in the "FEN" tag pair. This tag must appear for a game
1123 starting with a set-up position. If it appears with a tag value of "1", a FEN
1130 position used in the game. FEN is described in a later section of this
1200 NAGs with values from 10 to 135 modify the current position.
1221 10 drawish position
1222 11 equal chances, quiet position
1223 12 equal chances, active position
1224 13 unclear position
1485 Notation) for position notation and the EPD standard (Extended Position
1486 Description) for comprehensive position description for automated interprogram
1624 BOOKUP database program to provide position scoring. This is done by first
1765 each position, both good and bad moves are listed with appropriate annotation.
1995 FEN is based on a 19th century standard for position recording designed by the
2002 16.1.2: Uses for a position notation
2004 Having a standard position notation is particularly important for chess
2005 programmers as it allows them to share position databases. For example, there
2006 exist standard position notation databases with many of the classical benchmark
2007 tests for chessplaying programs, and by using a common position notation format
2008 many hours of tedious data entry can be saved. Additionally, a position
2009 notation can be useful for page layout programs and for confirming position
2021 of a FEN position description varies somewhat according to the position. In
2095 Here's the FEN for the starting position:
2143 16.2.2: Uses for an extended position notation
2145 Like FEN, EPD can also be used for general position description. However,
2156 and the en passant target square of a position. These can all fit on a single
2157 text line in an easily read format. The length of an EPD position description
2158 varies somewhat according to the position and any associated operations. In
2259 from the current position.
2324 from the current position, that are to be avoided in the opinion of the EPD
2331 from the current position, that are judged to the best available by the EPD
2338 level comment that applies to the given position. It is the first of ten
2351 2) As the EPD record for each position in the game is processed, the comment
2367 The opcode "ce" indicates the evaluation of the indicated position in centipawn
2369 evaluation of the position from the viewpoint of the active player; i.e., the
2370 player with the move. Positive values indicate a position favorable to the
2371 moving player while negative values indicate a position favorable to the
2394 A value of -32767 indicates an illegal position. A stalemate position has a
2395 centipawn evaluation of zero as does a position drawn due to insufficient
2396 mating material. Any other position known to be a certain forced draw also has
2403 to be delivered by the active color for the indicated position. It always
2405 For example, a position known to be a "mate in three" would have an operation
2415 move that lead to the indicated position is accepted by the active player.
2433 indicated position. The draw_offer opcode takes no operands.
2439 move that lead to the indicated position is rejected by the active player.
2446 _Encyclopedia of Chess Openings_ taxonomy with the indicated position. The
2457 The opcode "fmvn" represents the fullmove n umber associated with the position.
2472 The opcode "hmvc" represents the halfmove clock associated with the position.
2473 The halfmove clock of a position is equal to the number of plies since the last
2487 16.2.5.15: Opcode "id": position identification
2490 position. It takes a single string operand.
2494 fifty seventh position of the one thousand one problems in Reinfeld's _1001
2496 fifteenth position in the twenty four problem Bratko-Kopec test suite would
2503 Chess_ taxonomy with the indicated position. The opcode takes either a single
2522 position. It has exactly one operand, a move playable from the position. This
2536 position. It has zero or more operands which represent a sequence of moves
2537 playable from the position. This sequence is judged by the EPD writer to
2547 position. It takes a single, positive integer operand. Any position,
2548 including the initial starting position, is considered to have an "rc" value of
2550 position repetition rule.
2562 position. It has exactly one operand, a move playable from the position. This
2563 move is the move to be played from the position.
2600 level variation name that applies to the given position. It is the first of
2613 2) As the EPD record for each position in the game is processed, the variation
2695 19: Canonical chess position hash coding
2748 an index into the list of legal moves from the current position. This list is
2749 constructed by generating the legal moves from the current position, assigning
2755 Examples: From the initial position, there are twenty moves. Move ordinal 0
2761 set is a list of moves that are all playable from the current position.