buggnubg - Bugs: bug #42154, At the end of a game, Wants to...

 
 

bug #42154: At the end of a game, Wants to force a hit, when I can just bear off

Submitter:  None
Submitted:  Sun 20 Apr 2014 09:02:40 PM UTC
   
 
Originator Name:  Chris Fahlman Originator Email:  * -email is unavailable-
Item Group:  Other bug Category:  Other
Release:  * 1.01-Release Privacy:  Public
Operating System:  Linux Severity:  3 - Normal
Open/Closed:  Closed Assigned to:  None
Priority:  5 - Normal Status:  Works For Me
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Tue 22 Apr 2014 07:27:38 PM UTC, comment #1: 

This is not a bug. According to the rules, you must play both dice if possible  (and if you can play either one but not both, you must play the largest one).

In your position, 2/off, playing only the 6 is illegal since you can play 2/1*/off using both dice.

As you note, this doesn't matter in the position at hand, but see for instance http://www.bkgm.com/faq/BasicRules.html#can_i_play_one_number_in_such_a_way_as_to_avoid_playing_the_other_ for nastier examples.


Philippe Michel <plm>
Group administrator
Sun 20 Apr 2014 09:02:40 PM UTC, original submission:  


There is a bug where GnuBG wants me to force a hit, when I can just bear off to end the game. I have checker on the 2 point. Opponent has a checker on 24 point. I rolled a (6,1). I should be able to play the checker off with the 6 die and end the game. But GnuBG refuses to allow this move: I must hit the checker with the 1 die and then bear-off to end the game. (Either way, I win the game, but I shouldn't have to hit.)

I included a screenshot and a saved game.

Version GNU Backgammon 1.03.000  Mar 17 2014
OS: linux.

Anonymous

 

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Attached Files
file #31223:  BearingOffError.png added by None (913KiB - image/png)
file #31222:  BuggyBackgammonEnd.ThinksIMustHit.sgf added by None (334KiB - application/x-go-sgf)

 

Depends on the following items: None found

Items that depend on this one: None found

 

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  • -email is unavailable- added by plm (Posted a comment)
  • -email is unavailable- added by None (Submitted the item)
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    Follow 4 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2014-04-27 plm Open/ClosedOpen Closed
    2014-04-22 plm StatusNone Works For Me
    2014-04-20 None Attached File- Added BuggyBackgammonEnd.ThinksIMustHit.sgf, #31222
        Attached File- Added BearingOffError.png, #31223

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