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Position #255

Nov 17th, 2009 by vct

White 4, Red 6 (match to 9 points)

Red to play 12

+-24-23-22-21-20-19-+---+-18-17-16-15-14-13-+

+--1--2--3--4--5--6-+---+--7--8--9-10-11-12-+

Pip counts: White 161, Red 136
Position ID: 4HPiASKGb+DBAA Match ID: cIkoAUAAMAAA

Red’s position is so inflexible that he has to take action now by bringing a builder from the 6-point into play and making the important 5-point despite the fact that he is far ahead in the race and has to leave a double shot by doing so.

An interesting result from the rollout is that even the weak 6/4*/3 is better than the more ‘natural’ 13/10 or 18/15* - only because it activates a builder from the 6-point.

Ply

Move

Equity

7/5 6/5

+0,429

0,614	0,218	0,014	-	0,386	0,079	0,004	+0,343	+0,429
0,001	0,003	0,002	-	0,001	0,001	0,001	0,005	0,009

Full cubeful rollout with var.redn.

1296 games, Mersenne Twister dice gen. with seed 815372410 and quasi-random dice

Play: world class 2-ply cubeful prune [world class]

keep the first 0 0-ply moves and up to 8 more moves within equity 0,16

Skip pruning for 1-ply moves.

Cube: 2-ply cubeful prune [world class]

Different evaluations after 12 plies:

Play: 0-ply cubeful [expert]

Cube: 2-ply cubeful prune [world class]

6/4*/3

+0,316 ( -0,113)

0,594	0,201	0,020	-	0,406	0,096	0,005	+0,248	+0,316
0,002	0,003	0,002	-	0,002	0,001	0,001	0,005	0,010

Full cubeful rollout with var.redn.

1296 games, Mersenne Twister dice gen. with seed 815372410 and quasi-random dice

Play: world class 2-ply cubeful prune [world class]

keep the first 0 0-ply moves and up to 8 more moves within equity 0,16

Skip pruning for 1-ply moves.

Cube: 2-ply cubeful prune [world class]

Different evaluations after 12 plies:

Play: 0-ply cubeful [expert]

Cube: 2-ply cubeful prune [world class]

18/15*

+0,293 ( -0,136)

0,589	0,211	0,022	-	0,411	0,104	0,005	+0,254	+0,293
0,002	0,003	0,002	-	0,002	0,001	0,001	0,005	0,010

Full cubeful rollout with var.redn.

1296 games, Mersenne Twister dice gen. with seed 815372410 and quasi-random dice

Play: world class 2-ply cubeful prune [world class]

keep the first 0 0-ply moves and up to 8 more moves within equity 0,16

Skip pruning for 1-ply moves.

Cube: 2-ply cubeful prune [world class]

Different evaluations after 12 plies:

Play: 0-ply cubeful [expert]

Cube: 2-ply cubeful prune [world class]

13/10

+0,227 ( -0,202)

0,574	0,168	0,014	-	0,426	0,093	0,003	+0,195	+0,227
0,001	0,003	0,002	-	0,001	0,001	0,000	0,005	0,009

Full cubeful rollout with var.redn.

1296 games, Mersenne Twister dice gen. with seed 815372410 and quasi-random dice

Play: world class 2-ply cubeful prune [world class]

keep the first 0 0-ply moves and up to 8 more moves within equity 0,16

Skip pruning for 1-ply moves.

Cube: 2-ply cubeful prune [world class]

Different evaluations after 12 plies:

Play: 0-ply cubeful [expert]

Cube: 2-ply cubeful prune [world class]

6/3

+0,199 ( -0,230)

0,568	0,153	0,009	-	0,432	0,099	0,004	+0,166	+0,199
0,001	0,002	0,001	-	0,001	0,001	0,000	0,005	0,008

Full cubeful rollout with var.redn.

1296 games, Mersenne Twister dice gen. with seed 815372410 and quasi-random dice

Play: world class 2-ply cubeful prune [world class]

keep the first 0 0-ply moves and up to 8 more moves within equity 0,16

Skip pruning for 1-ply moves.

Cube: 2-ply cubeful prune [world class]

Different evaluations after 12 plies:

Play: 0-ply cubeful [expert]

Cube: 2-ply cubeful prune [world class]

6/5 6/4*

+0,162 ( -0,268)

0,557	0,189	0,015	-	0,443	0,110	0,005	+0,145	+0,162
0,002	0,003	0,002	-	0,002	0,002	0,001	0,005	0,010

Full cubeful rollout with var.redn.

1296 games, Mersenne Twister dice gen. with seed 815372410 and quasi-random dice

Play: world class 2-ply cubeful prune [world class]

keep the first 0 0-ply moves and up to 8 more moves within equity 0,16

Skip pruning for 1-ply moves.

Cube: 2-ply cubeful prune [world class]

Different evaluations after 12 plies:

Play: 0-ply cubeful [expert]

Cube: 2-ply cubeful prune [world class]

13/11 6/5

+0,144 ( -0,285)

0,554	0,152	0,010	-	0,446	0,098	0,004	+0,130	+0,144
0,001	0,003	0,002	-	0,001	0,002	0,000	0,005	0,009

Full cubeful rollout with var.redn.

1296 games, Mersenne Twister dice gen. with seed 815372410 and quasi-random dice

Play: world class 2-ply cubeful prune [world class]

keep the first 0 0-ply moves and up to 8 more moves within equity 0,16

Skip pruning for 1-ply moves.

Cube: 2-ply cubeful prune [world class]

Different evaluations after 12 plies:

Play: 0-ply cubeful [expert]

Cube: 2-ply cubeful prune [world class]

7/4*

+0,075 ( -0,354)

0,537	0,180	0,014	-	0,463	0,117	0,005	+0,098	+0,075
0,002	0,003	0,002	-	0,002	0,001	0,001	0,005	0,009

Full cubeful rollout with var.redn.

1296 games, Mersenne Twister dice gen. with seed 815372410 and quasi-random dice

Play: world class 2-ply cubeful prune [world class]

keep the first 0 0-ply moves and up to 8 more moves within equity 0,16

Skip pruning for 1-ply moves.

Cube: 2-ply cubeful prune [world class]

Different evaluations after 12 plies:

Play: 0-ply cubeful [expert]

Cube: 2-ply cubeful prune [world class]

Posted in Checker play, Holding game, Position

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Position #255

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