BGonline.org Forums

updated backgame engine

Posted By: Petter Bengtsson
Date: Thursday, 10 September 2026, at 12:04 p.m.

In Response To: updated backgame engine (AP)

The settings in your XG rollout are clearly not strong enough for this type of position.

Compare your rollout with the rollout below.

		White is Player 2 score: 0 pip: 39 Unlimited Game Jacoby Beaver pip: 139 score: 0 Blue is Player 1
XGID=----a-ABCBBCB----------eh-:1:-1:1:63:0:0:3:0:10
Blue to play 63

1.	Rollout1	12/6 8/5	eq: +0,801
	Player: Opponent: 91,43% (G:0,00% B:0,00%) 8,57% (G:0,56% B:0,00%) Conf.: ± 0,005 (+0,796...+0,807) - [100,0%] Duration: 1 hour 35 minutes
2.	Rollout1	12/9 12/6	eq: +0,781 (-0,020)
	Player: Opponent: 90,69% (G:0,00% B:0,00%) 9,31% (G:0,88% B:0,00%) Conf.: ± 0,004 (+0,777...+0,785) - [0,0%] Duration: 1 hour 29 minutes
1 2592 Games rolled with Variance Reduction. Moves and cube decisions: XG Roller++ Search interval: Gigantic

eXtreme Gammon Version: 2.10

Messages In This Thread

• updated backgame engine
  AP -- Wednesday, 9 September 2026, at 4:56 p.m.
  • updated backgame engine
    Stick -- Wednesday, 9 September 2026, at 10:05 p.m.
    • updated backgame engine
      AP -- Thursday, 10 September 2026, at 4:27 a.m.
      • How can we know which bot is best? - updated backgame engine
        MK -- Thursday, 10 September 2026, at 11:03 a.m.
  • updated backgame engine
    Frank Berger -- Thursday, 10 September 2026, at 10:04 a.m.
    • updated backgame engine
      AP -- Friday, 11 September 2026, at 10:18 p.m.
      • updated backgame engine
        Frank Berger -- Saturday, 12 September 2026, at 7:44 a.m.
  • updated backgame engine
    Petter Bengtsson -- Thursday, 10 September 2026, at 12:04 p.m.
    • updated backgame engine
      Frank Berger -- Thursday, 10 September 2026, at 5:50 p.m.