[Bug-gnubg] Incorrect scoring after GnuBg resigns when Jacoby enabled

[Ian Shaw]

First reported by Ric Gerace on GammOnLine.
Tested by me on build 28 Jan 2003.

    GNU Backgammon  Position ID: BwAAcLctAFAAAA
                    Match ID   : MGkAACAAKAAA
    +-1--2--3--4--5--6-------7--8--9-10-11-12-+  O: GnuBg
    | O  O  O  O  O  O |   |                  |  2 points
    | O  O  O  O  O    |   |                  |  On roll
    | O  O             |   |                  |  
    |                  |   |                  |  
    |                  |   |                  |  
    |                  |BAR|                  |^ (Cube: 1)
 XX |                  |   |                  |  
 XX |                  |   |                  |  
 XX | X                |   |                  |  
XXX | X                |   |                  |  
XXX | X        O  O    |   |                  |  5 points
    +24-23-22-21-20-19------18-17-16-15-14-13-+  X: Ian

 IF Jacoby rule enabled
   GnuBg offers to resign bg.
   IF Accept 
      score 3 points!  (I have 8 in following game.) 
      Game record reads Resigns - Perhaps should show number of points?
   ELSE
        play a roll each
        GnuBg offers to resign g
      IF Accept 
         score 2 points!
      ELSE
         play a roll each
         score 1 point

 ELSE (Jacoby rule disabled)
   GnuBg rolls to save the bg.

Possible solutions:
GnuBg should only offer to resign single
The scoring should check that Jacoby is disabled before allowing > 1 point to 
be scored.

It would be confusing (and ethically suspect) to offer a bg and then only mark 
up one point, so the first solution is correct. Adding the second check would 
be belt & braces.

--Ian