From: ("jkgarner")
Date:  30 Dec 2016 02:01:07 Hong Kong Time

[PEAR-BUG] Bug #13133 [Com]: stalemate

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 ID:              13133
 Comment by:      jkgarner
 Reported By:     jkgarner at yahoo dot com
 Summary:         stalemate
 Status:          Open
 Type:            Bug
 Package:         Games_Chess
 Package Version: 1.0.1
 PHP Version:     5.2.5
 New Comment:

I am not sure hat caused the bug listed, as I was unable to view the
game on facebook listed. However, in looking at the code, I saw an
obvious logical error that will cause the game to declare a draw too

code in package:
* Determine whether any pawn move or capture has occurred in the past 50
* @return boolean
function in50MoveDraw()
   return $this->_halfMoves >= 50;

IN relation to the 50 move rule, a player must move 50 times with no
capture and no pawn movement. This is tracked nicely with the _halfMove
variable, which is incremented whenever a player makes any move, eitther
side. This is also called plys in chess programing circles. The ply
count of 35 or halfMove count of 50 cooresponds with a move count of 25.
This code will throw the 50 mvoe rule draw when a player gets to 25
moves, far too soon. The check should be to 100 or greater.

Previous Comments:

[2008-02-16 10:52:05] dapetras

In the process of mating my opponent with a Bishop and Knight when the
game was suddenly and incorrectly declared a stalemate. Check facebook
game # 537921

I have no idea what PHP package version as I am a facebook end user and
am having a problem.


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