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Rollout: 61P-62R-52S-22N-32?

Posted By: Timothy Chow
Date: Friday, 30 July 2010, at 10:50 p.m.

In Response To: 61P-62R-52S-22N-32? (Timothy Chow)

This is a short rollout by BGO standards but it confirms what most people have said. I think this is a position which may be just as tough for an Open-level player as an intermediate, because the Open-level player will puzzle over more possibilities (like making the 4 point or the 5 point, which many intermediates won't even see because they can't imagine that breaking the bar point could possibly be right). I did not find the top play here because 6/3 seemed too awkward, but I guess is the point is that 8/5 and 13/10 are worse.

Note that I didn't roll out 8/5 7/5 or 7/4 6/4; I don't think that they are close, but if someone else is willing to roll them out, I'd be interested in the results.

gnubg	151
tchow	153
Position ID: mHPMESDg28EBJA Match ID: cAkNAAAAAAAA

#		Ply	Move	Equity
•	1	R	24/22 6/3	-0.336
			0.410 0.096 0.004 - 0.590 0.119 0.006 -0.205 -0.336 0.002 0.002 0.000 - 0.002 0.002 0.001 0.004 0.011
			Full cubeful rollout with var.redn.
			1296 games, Mersenne Twister dice gen. with seed 868701023 and quasi-random dice
			Play: supremo 2-ply cubeful prune [world class]
			keep the first 0 0-ply moves and up to 16 more moves within equity 0.32
			Skip pruning for 1-ply moves.
			Cube: 2-ply cubeful prune [world class]
	2	R	24/22 13/10	-0.370 ( -0.035)
			0.399 0.094 0.004 - 0.601 0.117 0.004 -0.226 -0.370 0.002 0.001 0.000 - 0.002 0.002 0.001 0.004 0.011
			Full cubeful rollout with var.redn.
			1296 games, Mersenne Twister dice gen. with seed 868701023 and quasi-random dice
			Play: supremo 2-ply cubeful prune [world class]
			keep the first 0 0-ply moves and up to 16 more moves within equity 0.32
			Skip pruning for 1-ply moves.
			Cube: 2-ply cubeful prune [world class]
	3	R	24/22 8/5	-0.381 ( -0.045)
			0.400 0.096 0.003 - 0.600 0.120 0.005 -0.226 -0.381 0.002 0.001 0.000 - 0.002 0.002 0.000 0.004 0.011
			Full cubeful rollout with var.redn.
			1296 games, Mersenne Twister dice gen. with seed 868701023 and quasi-random dice
			Play: supremo 2-ply cubeful prune [world class]
			keep the first 0 0-ply moves and up to 16 more moves within equity 0.32
			Skip pruning for 1-ply moves.
			Cube: 2-ply cubeful prune [world class]

Messages In This Thread

• 61P-62R-52S-22N-32?
  Timothy Chow -- Thursday, 29 July 2010, at 6:05 p.m.
  • 61P-62R-52S-22N-32?
    Martin -- Thursday, 29 July 2010, at 6:34 p.m.
    • 61P-62R-52S-22N-32?
      Stick -- Thursday, 29 July 2010, at 7:20 p.m.
      • 61P-62R-52S-22N-32?
        Leonardo Jerkovic -- Thursday, 29 July 2010, at 7:29 p.m.
        • 61P-62R-52S-22N-32?
          neilkaz -- Thursday, 29 July 2010, at 8:07 p.m.
          • at Gammon Go?
            6stones -- Thursday, 29 July 2010, at 9:24 p.m.
            • at Gammon Go?
              neilkaz -- Thursday, 29 July 2010, at 10:28 p.m.
              • at Gammon Go?
                Nack Ballard -- Friday, 30 July 2010, at 6:17 a.m.
                • at Gammon Go?
                  Stick -- Friday, 30 July 2010, at 6:41 a.m.
                • 63S-42H-F-32 — Unlimited Games — 3-ply XG2 Rollout
                  Taper_Mike -- Sunday, 9 June 2013, at 8:18 p.m.
            • RO at Gammon Go
              6stones -- Saturday, 31 July 2010, at 6:07 a.m.
              • 52D-41$-51S-52?
                Timothy Chow -- Sunday, 1 August 2010, at 3:05 a.m.
                • 52D-41$-51S-52 — Unlimited Games — 3-ply XG2 Rollout
                  Taper_Mike -- Tuesday, 16 April 2013, at 2:56 p.m.
      • 61P-62R-52S-22N-32?
        David Rockwell -- Thursday, 29 July 2010, at 9:55 p.m.
  • 61P-62R-52S-22N-32?
    Keene -- Thursday, 29 July 2010, at 8:33 p.m.
  • 61P-62R-52S-22N-32?
    John O'Hagan -- Thursday, 29 July 2010, at 8:56 p.m.
  • 61P-22N-52S-21U-11p-63R-32 (variant)
    Nack Ballard -- Friday, 30 July 2010, at 6:05 a.m.
    • 61P-22N-52S-21U-11p-63R-32 (variant)
      Timothy Chow -- Friday, 30 July 2010, at 7:51 p.m.
      • 61P-22N-52S-21U-11p-63R-32 (variant)
        Nack Ballard -- Friday, 30 July 2010, at 10:28 p.m.
        • 61P-22N-52S-21U-11p-63R-32 (variant)
          Timothy Chow -- Friday, 30 July 2010, at 10:39 p.m.
          • 61P-22N-52S-21U-11p-63R-32 (variant)
            Nack Ballard -- Saturday, 31 July 2010, at 2:17 a.m.
        • 61P-22N-52S-21U-11p-63R-32 (variant)
          storm -- Saturday, 31 July 2010, at 8:38 a.m.
          • 61P-22N-52S-21U-11p-63R-32 (variant)
            Nack Ballard -- Sunday, 1 August 2010, at 4:51 a.m.
    • Nactations of 61P-62R-52S-22N-32 — 2011 Update
      Taper_Mike -- Friday, 23 December 2011, at 7:53 p.m.
      • Nactations of 61P-62R-52S-22N-32 — 2011 Update
        Nack Ballard -- Saturday, 24 December 2011, at 2:47 a.m.
        • Hit/more/6
          Nack Ballard -- Sunday, 25 December 2011, at 5:42 p.m.
        • Nactations of 61P-62R-52S-22N-32 — 2011 Update
          Taper_Mike -- Monday, 26 December 2011, at 12:13 a.m.
  • Rollout: 61P-62R-52S-22N-32?
    Timothy Chow -- Friday, 30 July 2010, at 10:50 p.m.
    • 61P-62R-52S-22N-32 — Unlimited Games — 3-ply XG2 Rollout
      Taper_Mike -- Thursday, 2 January 2014, at 7:18 a.m.