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43S-61 — Gammon Go — 2-ply GnuBg Rollout & Correction

Posted By: Taper_Mike
Date: Tuesday, 17 July 2012, at 3:16 a.m.

In Response To: Solutions gammon go quiz from Stick (GNU)

–

The score (after 0 games) is: gnubg 2, user 1 (match to 3 points, Crawford game)

Move number 2: user to play 16

gnubg	160
user	167
Position ID: 4HPiASHgc/ABMA Match ID: 8Il4ACAACAAE

#		Ply	Move	Equity
•	1	R	13/7 6/5*	+0.214970
			0.478834 0.128651 0.018253 - 0.521166 0.261565 0.061398 +0.214970 +0.214970 0.000914 0.000664 0.000750 - 0.000914 0.002115 0.001475 0.002356 0.002356
			Full cubeful rollout with var.redn.
			15552 games, Mersenne Twister dice gen. with seed 822075993 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	24/18 6/5*	+0.205995 ( -0.008974)
			0.483286 0.119711 0.018725 - 0.516714 0.254821 0.048331 +0.205995 +0.205995 0.000841 0.000658 0.000794 - 0.000841 0.002016 0.001290 0.002269 0.002269
			Full cubeful rollout with var.redn.
			15552 games, Mersenne Twister dice gen. with seed 822075993 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	13/7 8/7	+0.152524 ( -0.062446)
			0.472189 0.104073 0.012498 - 0.527811 0.205316 0.031786 +0.152524 +0.152524 0.001079 0.000915 0.001021 - 0.001079 0.003380 0.001692 0.002800 0.002800
			Full cubeful rollout with var.redn.
			5184 games, Mersenne Twister dice gen. with seed 822075993 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]

Rollout by Stick

43S-61 — Gammon Go

Bot	Seed	Equity	Nacbracs	Link
GnuBg 2-ply	822075993	+214.970	g[H X9 P62] /15*5	Stick (above)
GnuBg 2-ply	[Not posted]	[Not posted]	g[H X9 P62] /5	BGO Message No. 63057

Correction: In the preceding message, the foregoing rollout is reported as 43S-61 g[H X9 P62] /15**5 There are too many stars in the trial counts. The correct counts are 15*5. Note: In BGO Message No. 63057, Nack seems to be referring to this rollout. He gives identical nacbracs, but lists the trial counts as 5k. It may be that the rollout was extended from 5k to 15k since he wrote, but coincidentally produced the same equity differences. Otherwise, Nack probably intended 15*5. Mike

Messages In This Thread

• Solutions gammon go quiz from Stick
  rew -- Wednesday, 9 February 2011, at 11:51 a.m.
  • Solutions gammon go quiz from Stick
    GNU -- Wednesday, 9 February 2011, at 12:30 p.m.
    • 41S-65 — Gammon Go — 2-ply GnuBg Rollout & Question
      Taper_Mike -- Tuesday, 26 June 2012, at 8:08 p.m.
      • 41S-65 — Gammon Go — 2-ply GnuBg Rollout & Question
        Nack Ballard -- Tuesday, 26 June 2012, at 10:54 p.m.
    • 43S-61 — Gammon Go — 2-ply GnuBg Rollout & Correction
      Taper_Mike -- Tuesday, 17 July 2012, at 3:16 a.m.