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Rollout

Posted By: Stick
Date: Wednesday, 18 April 2007, at 6:42 a.m.

In Response To: Cleveland Doubles w/Mary (Stick)

This is the main play Mary & I disagreed completely on. The worst part is, we didn't include the best play in our argument!? I wanted to play 21/16(2) 13/3 and she wanted to play 21/11(2). We ended up playing my play, and the result was quickly a wash as both sides tossed a 66 but it's interesting still as a problem.

I've seen these types of plays many many times playing against Snowie and felt that running all the way, while down 9 pips after the roll had to be wrong. Gammons for us are meaningless, there's no cube, so all we need is the best mix of games won & gammons not lost but losing a gammon is basically giving up nothing (our free drop). So really we need to know what wins the most games?

I am going to do a cubeless Snowie rollout too to get an idea of how this turns out. I was all happy afterwards as both Snowie & GNU make my play on 3 ply (2 ply GNU). More to come later...

The score (after 0 games) is: gnubg 4, user 6 (match to 7 points, Crawford game)

Move number 4: user to play 55

gnubg	121
user	150
Position ID: xt6BwQBo5+ABBg Match ID: 8In2AEAAMAAA

• user moves 21/16(2) 13/3

#		Ply	Move	Equity
	1	R	13/3(2)	-0.1112
			0.4481 0.1100 0.0055 - 0.5519 0.0698 0.0019 -0.1112 -0.1112 0.0014 0.0058 0.0012 - 0.0014 0.0021 0.0003 0.0029 0.0029
			Full cubeful rollout with var.redn.
			1188 games, Mersenne Twister dice gen. with seed 1057908782 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	R	21/11(2)	-0.1266 ( -0.0154)
			0.4379 0.0421 0.0018 - 0.5621 0.0253 0.0005 -0.1266 -0.1266 0.0012 0.0040 0.0006 - 0.0012 0.0017 0.0001 0.0023 0.0023
			Full cubeful rollout with var.redn.
			1188 games, Mersenne Twister dice gen. with seed 1057908782 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]
•	3	R	21/16(2) 13/3	-0.1328 ( -0.0216)
			0.4361 0.0596 0.0028 - 0.5639 0.0498 0.0012 -0.1328 -0.1328 0.0013 0.0045 0.0008 - 0.0013 0.0018 0.0002 0.0025 0.0025
			Full cubeful rollout with var.redn.
			1187 games, Mersenne Twister dice gen. with seed 1057908782 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]

Messages In This Thread

• Cleveland Doubles w/Mary
  Stick -- Monday, 16 April 2007, at 5:35 p.m.
  • Re: Cleveland Doubles w/Mary
    Chase -- Monday, 16 April 2007, at 5:50 p.m.
  • Re: Cleveland Doubles w/Mary
    neilkaz -- Monday, 16 April 2007, at 6:05 p.m.
  • Re: Cleveland Doubles w/Mary
    Stanley E. Richards -- Monday, 16 April 2007, at 8:03 p.m.
  • Re: Cleveland Doubles w/Mary
    DC-Ohio -- Monday, 16 April 2007, at 8:36 p.m.
  • Rollout
    Stick -- Wednesday, 18 April 2007, at 6:42 a.m.