nabla: Thank you so much, this gives me some motivation to play more backgammon on Brainking again !

Great to hear that this is so helpful!

As it is written in Java, it should be easy for Fencer to integrate it in his .mat generation code.

It might be easy to integrate it, but it would be very bad style as it would mean that BrainKing first produces a broken mat code and then reads and manipulates it to remove the bugs, instead of not producing them in the first place. And I don't even think fixing the bugs right where they are would be any harder

Errr... do you have any plans to fix the Nackgammon files as well ?

Not yet, as I don't really play Nackgammon (so far). I've just looked at a Nackgammon mat file from dailygammon.com at it looks kind of interesting though weird. The first move is always an "illegal play" which sets up the Nackgammon position and the first dice roll, the rest is exactly the same as for Backgammon. I just can't really make too much sense out of this "illegal play" string. Maybe you can? I'll attach a few examples.

All I can tell at first glance is that I would need to analyse the match and game data more seriously than I do now

 5 point match

 Game 1
 Rich In Bunly Goodness : 0          natureseeker : 0
  1) 12: Illegal play (5;0;1;0;0;natureseeker;Rich In Bunly Goodness;\
        0;0;0;1;0;0;-2;-2;0;0;0;4;0;3;0;0;0;-4;4;0;0;0;-3;0;-4;0;0;0;2;2;0;6;3;)\
        63: 24/18 23/20

 [...]

 Game 2
 Rich In Bunly Goodness : 0          natureseeker : 1
  1) 12: Illegal play (5;0;1;0;0;natureseeker;Rich In Bunly Goodness;\
        0;1;0;1;0;0;-2;-2;0;0;0;4;0;3;0;0;0;-4;4;0;0;0;-3;0;-4;0;0;0;2;2;0;6;4;) \
        64: 24/18 24/20

[...]

 Game 3
 Rich In Bunly Goodness : 0          natureseeker : 3
  1) 12: Illegal play (5;0;1;0;0;natureseeker;Rich In Bunly Goodness;\
       0;3;0;1;0;0;-2;-2;0;0;0;4;0;3;0;0;0;-4;4;0;0;0;-3;0;-4;0;0;0;2;2;0;2;1;)\
        21: 23/21 21/20

[...]

 Game 4
 Rich In Bunly Goodness : 0          natureseeker : 4
  1)                                 12: Illegal play \
        (5;0;1;0;1;Rich In Bunly Goodness;natureseeker;\
        1;0;4;1;0;0;-2;-2;0;0;0;4;0;3;0;0;0;-4;4;0;0;0;-3;0;-4;0;0;0;2;2;0;6;1;)
  2) 61: 13/7 8/7                    11: 23/22 23/22 22/21 22/21

A lot of numbers are the same in every line, so I guess that this is just the routine position setup. the last two digits are the dice rolled. But all that stuff in the beginning?