Manual de Houdini 3 2012 | Page 283

Chess rules (FIDE)

4.18

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C: Blitz
C1. A 'blitz game' is one where all the moves must be made in a fixed time less than 15
minutes.
C2. Play shall be governed by the Rapidplay Laws as in Appendix B except where they
are overridden by the following Laws.
C3. An illegal move is completed once the opponent's clock has been started. The
opponent is then entitled to claim a win before making his own move. Once the
opponent has made his own move, an illegal move cannot be corrected.
C4. In order to win, a player must have 'mating potential'. This is defined as adequate
forces eventually to produce a position legally, possibly by 'helpmate', where an
opponent having the move cannot avoid being checkmated in one move. Thus two
knights and a king against a lone king is insufficient, but a rook and king against a
knight and king is sufficient.
C5. Article 10.2 does not apply.

4.19

D: Quickplay finishes with no arbiter
D1. Where games are played as in Article 10, a player may claim a draw when he has
less than two minutes left on his clock and before his flag falls. This concludes the
game. He may claim on the basis
(a) that his opponent cannot win by normal means, or
(b) that his opponent has been making no effort to win by normal means.
In (a) the player must write down the final position and his opponent verify it.
In (b) the player must write down the final position and submit an up-to-date
scoresheet which must be completed before play has ceased. The opponent shall
verify both the scoresheet and the final position.
The claim shall be referred to an arbiter whose decision shall be final.

4.20

E: Algebraic notation
Description of the Algebraic System
E1. Each piece is indicated by the first letter, a capital letter, of its name. Example: K
= king, Q = queen, R = rook, B = bishop, N = knight. (In the case of the knight, for the
sake of convenience, N is used.)
E2. For the first letter of the name of a piece, each player is free to use the first
letter of the name which is commonly used in his country. Examples: F = fou (French
for bishop), L = loper (Dutch for bishop). In printed periodicals, the use of figurines for
the pieces is recommended.
E3. Pawns are not indicated by their first letter, but are recognized by the absence of
such a letter. Examples: e5, d4, a5.
E4. The eight files (from left to right for White and from right to left for Black) are
indicated by the small letters, a, b, c, d, e, f, g and h, respectively.

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