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S&G Rollout

Posted By: Stick
Date: Wednesday, 16 January 2008, at 11:54 p.m.

In Response To: 1990 Monte Carlo - 5pt is the 5pt? (Stick)

I was only interested in this one because OtB the 5pt was made and Kit at the time agreed with the play. I thought running was called for, escaping the back man at the cost of I believe it was 12 indirect shots where if you get away with it your distribution is good enough to have a good chance to bring it all home safely. You're miles ahead in the race, another argument for the run, and you're only equalizing board strength. What you're also doing is leaving thirteen shots to lose your racing advantage and get the other checker sent back!

The score (after 1 game) is: Heinrich 0, Lidov 1 (match to 21 points)

Heinrich173


1O ' ' '2X3X '3X '1O '3O

1X1X1X ' '5O '4O ' '1O4X

Lidov151

Position ID: sHPwACrg88gJIA Match ID: cIm5AgAACAAA

• Lidov moves 11/5 8/5

1. Rollout 24/15 Eq.: +0.2514

0.5679 0.1206 0.0056 - 0.4321 0.1180 0.0044 CL +0.1389 CF +0.2800

[0.0033 0.0032 0.0008 - 0.0033 0.0033 0.0005 CL 0.0083 CF 0.0221]

Full cubeful rollout with var.redn.

318 games, Mersenne Twister dice gen. with seed 1051188750 and quasi-random dice

Play: 2-ply cubeful prune [world class]

keep the first 0 0-ply moves and up to 12 more moves within equity 0.16

Skip pruning for 1-ply moves.

Cube: 2-ply cubeful prune [world class]

2. Rollout 11/5 8/5 Eq.: +0.1538 ( -0.0976)

0.5217 0.1712 0.0088 - 0.4783 0.1141 0.0054 CL +0.1040 CF +0.1801

[0.0033 0.0040 0.0009 - 0.0033 0.0033 0.0006 CL 0.0082 CF 0.0202]

Full cubeful rollout with var.redn.

318 games, Mersenne Twister dice gen. with seed 1051188750 and quasi-random dice

Play: 2-ply cubeful prune [world class]

keep the first 0 0-ply moves and up to 12 more moves within equity 0.16

Skip pruning for 1-ply moves.

Cube: 2-ply cubeful prune [world class]

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