Computer Chess Club Archives


Search

Terms

Messages

Subject: USCF Rules and Computer Chess

Author: KarinsDad

Date: 14:00:28 01/07/99


I found the following on the USCF web page:

Q: My opponent made an insufficient losing chances claim (we were using a
mechanical clock). The TD said it was a close call, and watched the game for no
progress. After a few moves, I made a silly blunder and lost my Queen. Before
the TD could make his ruling, my opponent said he was withdrawing his claim. Is
that legal?

A: An insufficient losing chances claim can be interpreted as an extended draw
offer. The TD has two options if the situation is too close to call. He may
watch for no progress or temporarily deny the claim and invite either player to
make a re-claim if the situation changes.

The usual interpretation is, if the TD invites a re-claim, the offer is off the
table, so to speak. If the TD is watching for a lack of progress, the offer is
live for however long it takes the TD to resolve the claim.

The TD can declare the game drawn at any time while he is watching for a lack of
progress (even if the claimant's flag falls).

The TD should resolve the claim as soon as the situation changes sufficiently to
clearly show either the player does or does not have insufficient losing
chances.

When your opponent made his insufficient losing chances claim, he was announcing
that he was willing to accept a draw (if he could get one). Once you dropped
your Queen, it became clear that your opponent had no losing chances, and the TD
should have declared the game a draw.

Note: If your opponent had dropped his Queen, the TD would then have been able
to deny his claim.


This seems strange to me. Let's take the following example:

........
....Kpk.
......p.
.......r
....Q...
........
........
........

Black has set up a fortress that white may have a difficult time penetrating.
So, black claims insufficient losing chances. White denies the claim thinking
that he may be able to win f pawn. The TD thinks 1. Qd4+, kg8, 2. Qd8+, kg7, 3.
Qf8+ and white can win the pawn with Kxf7 or Qxf7 on the next move and possibly
the game, so it is unclear and denies the claim. White had the option here of
declining the draw, but did not.

White accidently moves 1. Qe5+ thinking that if kg8, 2. Qb8+, kg7, 3. Qf8+, but
forgets that black can play 1... Rxe5. Suddenly, black has a won game but white
is able to declare a draw since the insufficient drawing chances is still on the
table?

My questions are:

1) Does this seem strange to anyone else, or just me? White had the chance to
accept the draw when black made the claim, but chose not to. Due to the whim of
the TD either to watch the game (the offer is live) or to not watch the game
(the offer is off the table), the results of the game changes.

2) Does any of the computer chess programs understand these USCF rules, or does
the operator of the program have to understand them and attempt to handle them?

3) If any of the computer chess programs DO understand the rules, how much
effort is it when the USCF comes out with another set of rules?

Thanks,

KarinsDad



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.