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Long rollout of 32B w/ 3ply play vs 2 ply play

Posted By: neilkaz
Date: Monday, 3 August 2009, at 4:05 p.m.

I did this rollout just to double check Matt's finding that 3/2 is a bit better than 2/2. Considering that 32B rolls out to be almost exactly an even game with 2/2 vs 2/2, I think we can see that 3/2 is just a tad better..winning about 0.2% more games. This means that I can safely use 3/2 rollouts to add more data for close opening rolls and responses where the post GNU and Snowie data don't agree. I'll start a 3/2 rollout of 41$ 11 soon. Perhaps the result will also show the plays very close as GNU 2/2 has or perhaps it will be clear for hitting like Snowie's results.

The score (after 0 games) is: 2 ply 0, 3 ply 0

Move number 7: 3 ply to play 23

2 ply	167
3 ply	167
Position ID: 4HPwATDgc/ABMA Match ID: cAkNAAAAAAAA

#		Ply	Move	Equity
	1	R	13/11 13/10	+0.0075
			0.4997 0.1499 0.0067 - 0.5003 0.1413 0.0077 +0.0070 +0.0075 0.0004 0.0004 0.0001 - 0.0004 0.0004 0.0001 0.0009 0.0026
			Full cubeful rollout with var.redn.
			20418 games, Mersenne Twister dice gen. with seed 860927767 and quasi-random dice
			Player 0:
			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]
			Player 1:
			Play: 3-ply cubeful prune [grandmaster]
			keep the first 0 0-ply moves and up to 10 more moves within equity 0.2
			Skip pruning for 1-ply moves.
			keep the first 0 2-ply moves and up to 4 more moves within equity 0.06
			Cube: 2-ply cubeful prune [world class]
	2	2	24/21 13/11	+0.0427 ( +0.0352)
			0.5124 0.1396 0.0068 - 0.4876 0.1325 0.0043
	3	2	24/22 13/10	+0.0167 ( +0.0092)
			0.5050 0.1378 0.0056 - 0.4950 0.1319 0.0043
	4	2	24/22 24/21	-0.0056 ( -0.0131)
			0.5005 0.1256 0.0063 - 0.4995 0.1325 0.0039
	5	2	13/8	-0.0085 ( -0.0160)
			0.4976 0.1377 0.0055 - 0.5024 0.1393 0.0048