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Free Lesson - 5a 5a
Posted By: Taper_Mike In Response To: Free Lesson - 5a 5a (Stick)
Date: Tuesday, 4 September 2012, at 1:15 p.m.
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Thanks for treating us to another great lesson. After the late hit in one game, XG had borne off 6 checkers, and you faced the job of containing the hit checker. You will remember that a tough 33 caused one of the largest errors in the lesson.
After hitting loose on the 3pt, you remarked how the need to cover sometimes conflicts with the desire to beat the gammon. Bringing extra checkers within direct range gives you more chances to make the point, but also creates more double-hit opportunities for your opponent. Eventually you chose to play 19/16, 13/10(2), 6/3*, leaving only the roll 53 as double-hit number. (See diagram below.) Somewhat surprisingly, that move ranks 12th in the rollout below.
Nevertheless, the short rollout seems to indicate that you were on the right track. The reason your play ranks so low is evidentally because it brought only one checker within direct range to cover. The best play brings two, while limiting the risk of a double hit to the same chances as your move. The quickest way to win this game is to cover.
Any more exact explanation probably involves counting the hits and covers (and wins and gammons) for each candidate.
Mike
White is Player 2
score: 0
pip: 375 point match pip: 127
score: 0
Blue is Player 1XGID=--BaBBC-A----C-----A-Abcc-:0:0:1:33:0:0:0:5:10 Blue to play 33
1. Rollout1 13/7 8/5 6/3* eq: -0.021
Player:
Opponent:54.63% (G:0.00% B:0.00%)
45.37% (G:19.01% B:0.93%)Conf.: ± 0.008 (-0.029...-0.013) - [99.4%]
Duration: 6 minutes 56 seconds2. Rollout1 19/16 13/10 8/5 6/3* eq: -0.035 (-0.014)
Player:
Opponent:53.66% (G:0.00% B:0.00%)
46.34% (G:18.51% B:0.88%)Conf.: ± 0.007 (-0.042...-0.028) - [0.6%]
Duration: 6 minutes 28 seconds3. Rollout1 21/15 13/10 6/3* eq: -0.041 (-0.019)
Player:
Opponent:53.37% (G:0.00% B:0.00%)
46.63% (G:19.37% B:1.18%)Conf.: ± 0.007 (-0.048...-0.033) - [0.0%]
Duration: 7 minutes 27 seconds4. Rollout1 13/4 6/3* eq: -0.041 (-0.020)
Player:
Opponent:53.70% (G:0.00% B:0.00%)
46.30% (G:18.57% B:0.95%)Conf.: ± 0.008 (-0.049...-0.034) - [0.0%]
Duration: 6 minutes 23 seconds5. Rollout1 21/18 13/10 8/5 6/3* eq: -0.047 (-0.026)
Player:
Opponent:53.50% (G:0.00% B:0.00%)
46.50% (G:18.50% B:0.62%)Conf.: ± 0.007 (-0.055...-0.040) - [0.0%]
Duration: 6 minutes 06 seconds6. Rollout1 21/18 19/16 13/10 6/3* eq: -0.052 (-0.031)
Player:
Opponent:52.94% (G:0.00% B:0.00%)
47.06% (G:19.78% B:1.14%)Conf.: ± 0.007 (-0.059...-0.044) - [0.0%]
Duration: 6 minutes 19 seconds7. Rollout1 13/10(2) 8/5 6/3* eq: -0.061 (-0.039)
Player:
Opponent:53.10% (G:0.00% B:0.00%)
46.90% (G:19.08% B:0.99%)Conf.: ± 0.008 (-0.069...-0.053) - [0.0%]
Duration: 5 minutes 19 seconds8. Rollout1 19/16 13/7 6/3* eq: -0.066 (-0.045)
Player:
Opponent:53.21% (G:0.00% B:0.00%)
46.79% (G:20.90% B:1.36%)Conf.: ± 0.008 (-0.074...-0.058) - [0.0%]
Duration: 5 minutes 59 seconds9. Rollout1 19/10 6/3* eq: -0.068 (-0.047)
Player:
Opponent:53.01% (G:0.00% B:0.00%)
46.99% (G:20.10% B:0.78%)Conf.: ± 0.008 (-0.076...-0.060) - [0.0%]
Duration: 5 minutes 46 seconds10. Rollout1 21/18 13/10(2) 6/3* eq: -0.068 (-0.047)
Player:
Opponent:52.77% (G:0.00% B:0.00%)
47.23% (G:20.17% B:1.47%)Conf.: ± 0.008 (-0.076...-0.060) - [0.0%]
Duration: 5 minutes 32 seconds11. Rollout1 21/18 13/7 6/3* eq: -0.070 (-0.049)
Player:
Opponent:53.05% (G:0.00% B:0.00%)
46.95% (G:20.95% B:1.15%)Conf.: ± 0.008 (-0.078...-0.062) - [0.0%]
Duration: 6 minutes 15 seconds12. Rollout1 19/16 13/10(2) 6/3* eq: -0.071 (-0.049)
Player:
Opponent:52.61% (G:0.00% B:0.00%)
47.39% (G:20.50% B:1.57%)Conf.: ± 0.008 (-0.079...-0.063) - [0.0%]
Duration: 5 minutes 17 seconds13. Rollout1 21/15 19/16 6/3* eq: -0.083 (-0.062)
Player:
Opponent:51.78% (G:0.00% B:0.00%)
48.22% (G:21.07% B:0.78%)Conf.: ± 0.007 (-0.090...-0.076) - [0.0%]
Duration: 5 minutes 53 seconds14. Rollout1 21/12 6/3* eq: -0.085 (-0.063)
Player:
Opponent:52.12% (G:0.00% B:0.00%)
47.88% (G:20.70% B:0.79%)Conf.: ± 0.008 (-0.093...-0.077) - [0.0%]
Duration: 5 minutes 22 seconds15. Rollout1 13/10 13/7 6/3* eq: -0.089 (-0.068)
Player:
Opponent:53.01% (G:0.00% B:0.00%)
46.99% (G:22.37% B:3.40%)Conf.: ± 0.008 (-0.097...-0.081) - [0.0%]
Duration: 4 minutes 55 seconds16. Rollout1 21/15 8/5 6/3* eq: -0.099 (-0.078)
Player:
Opponent:51.82% (G:0.00% B:0.00%)
48.18% (G:20.25% B:0.57%)Conf.: ± 0.007 (-0.106...-0.092) - [0.0%]
Duration: 4 minutes 56 seconds1 1296 Games rolled with Variance Reduction.
Dice Seed: 64559963
Moves: 3-ply, cube decisions: XG RollereXtreme Gammon Version: 2.03, MET: Kazaross XG2
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