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42 at GS

Posted By: HOMINID
Date: Friday, 18 March 2016, at 10:10 a.m.

In Response To: 42 at GS (John O'Hagan)

This problem is a roll counters dream it's so easy to calculate. Playing 13/11 13/9* bearing in mind that two and three are duplicated gives nine hitting returns. That's just 19% giving an 81% winning play. The silver lining of course is should white fail to hit there are 25 rolls that make a point. This is obviously a match-winning play. Even so I felt that I could still win this with a passive waiting play. According to XG any play other than this is a huge blunder. It is a mistake in highly complex position to expect low-level rollouts to get the right answer. I'm the man that used to enjoy watching a pretty graphic defragger and of course I obviously enjoy watching rollouts. One rolls spikes then another like a team of berserk Morris dancers. I of course realise that XG makes numerous errors and this result may be a glitch.

		White is Player 2 score: 0 pip: 97 2 point match pip: 90 score: 1 Blue is Player 1
XGID=-B--BDCbBa---B-----bbcbba-:0:0:1:42:1:0:0:2:10
Blue to play 42

1.	Rollout1	13/11 13/9*	eq: -0.1528
	Player: Opponent: 71.18% (G:14.62% B:0.15%) 28.82% (G:8.76% B:0.39%) Conf.: ±0.0402 (-0.1930...-0.1126) - [100.0%] Duration: 17 minutes 07 seconds
2.	Rollout2	13/9* 6/4	eq: -0.3241 (-0.1713)
	Player: Opponent: 66.90% (G:14.51% B:0.15%) 33.10% (G:11.27% B:0.77%) Conf.: ±0.0621 (-0.3862...-0.2619) - [0.0%] Duration: 7 minutes 59 seconds
3.	Rollout1	6/2 5/3	eq: -0.4907 (-0.3380)
	Player: Opponent: 62.73% (G:2.35% B:0.04%) 37.27% (G:2.08% B:0.15%) Conf.: ±0.0404 (-0.5311...-0.4504) - [0.0%] Duration: 15 minutes 02 seconds
4.	Rollout1	5/3 5/1	eq: -0.5957 (-0.4429)
	Player: Opponent: 60.11% (G:0.81% B:0.00%) 39.89% (G:2.04% B:0.12%) Conf.: ±0.0406 (-0.6362...-0.5551) - [0.0%] Duration: 14 minutes 38 seconds
5.	Rollout1	6/2 4/2	eq: -0.6003 (-0.4475)
	Player: Opponent: 59.99% (G:1.39% B:0.04%) 40.01% (G:2.01% B:0.08%) Conf.: ±0.0404 (-0.6407...-0.5599) - [0.0%] Duration: 15 minutes 10 seconds
6.	Rollout2	6/4 5/1	eq: -0.6698 (-0.5170)
	Player: Opponent: 58.26% (G:0.62% B:0.00%) 41.74% (G:2.24% B:0.23%) Conf.: ±0.0577 (-0.7275...-0.6120) - [0.0%] Duration: 8 minutes 33 seconds
1 2592 Games rolled. Dice Seed: 15454859 Cubeless First 4 moves: 4-ply Remaining moves: 4-ply 2 1296 Games rolled. Dice Seed: 15454859 Cubeless First 4 moves: 4-ply Remaining moves: 4-ply

eXtreme Gammon Version: 2.19.208.pre-release, MET: Kazaross XG2

Messages In This Thread

• 42 at GS
  John O'Hagan -- Wednesday, 16 March 2016, at 7:32 p.m.
  • 42 at GS
    Mick Z -- Thursday, 17 March 2016, at 11:24 a.m.
  • 42 at GS
    ah_clem -- Thursday, 17 March 2016, at 1:44 p.m.
    • 42 at GS
      ah_clem -- Thursday, 17 March 2016, at 1:49 p.m.
      • 42 at GS
        neilkaz -- Thursday, 17 March 2016, at 2:06 p.m.
  • 42 at GS
    Casper Van der Tak -- Thursday, 17 March 2016, at 1:49 p.m.
    • 42 at GS
      neilkaz -- Thursday, 17 March 2016, at 3:07 p.m.
  • 42 at GS
    johnk -- Thursday, 17 March 2016, at 4:38 p.m.
  • RO
    John O'Hagan -- Thursday, 17 March 2016, at 5:44 p.m.
  • 42 at GS
    HOMINID -- Friday, 18 March 2016, at 10:10 a.m.
    • 42 at GS
      Casper Van der Tak -- Friday, 18 March 2016, at 10:13 a.m.