Forum Archive : GNU Backgammon

Question marks in game list From:   Jim Segrave Address:   jes@nl.demon.net Date:   8 July 2005 Subject:   Re: gnu question Forum:   rec.games.backgammon Google:   11ctqmhled8bg2c@corp.supernews.com > When I select "analyze game" from the menu, I see question marks or ?! > whenever gnu doesn't like what it sees on my column of the game score. In the game list, there can be two sets of markings for mistaken play. The first set, closest to the actual play, is for chequer play errors, after those, separated by at least one space, are the marks for cube handling errors. '?!' - a doubtful move '?' - a bad move '??" - a very bad move (a blunder) If one of the above appears immediately after the chequer play, with no intervening space character, then the indicator is for a chequer play error. If the sequence appears with a space before it, then it's a cube error. A summary matrix, assume the dice were 31 and the move was 6/5 8/5: CUBE ----------------------------------------------------- CHEQUER no error doubtful bad very bad -------- --------- ------------ ----------- ------------ no error 6/5 8/5 6/5 8/5 !? 6/5 8/5 ? 6/5 8/5 ?? doubtful 6/5 8/5!? 6/5 8/5!?!? 6/5 8/5!? ? 6/5 8/5!? ?? bad 6/5 8/5? 6/5 8/5? !? 6/5 8/5? ? 6/5 8/5? ?? very bad 6/5 8/5?? 6/5 8/5???!? 6/5 8/5?? ? 6/5 8/5???? For example: jim_segrave Brunello 1 44: 24/186(2)? 31: bar/24 1815?? In this game both players made chequer play mistakes -- I made a bad error (one '?', my opponent made a very bad error '??') 2 21: 13/10* ?! 53: bar/20 8/5 On the next move, I made a doubtful ('?!' cube decision -- I should have doubled. Note the space before the '?!' - that indicates that there was no problem with my chequer play 3. 21: 6/5*/3?!?! 63: Here I made a doubtful chequer play and a doubtful cube error - once again I didn't double and should have If you step through the game list using the arrows with the '?' inlaid, you will move from one reported error to the next and the analysis window will show you the cube error if there was one or the chequer error if that was the only error (you start with the cube error if there are both in the same move) The use of italics and bold face indicate very lucky and very unlucky dice rolls. I believe bold is very lucky and italic is very unlucky -- Jim Segrave (jes@jes-2.demon.nl)   Did you find the information in this article useful?           Do you have any comments you'd like to add?

 

GNU Backgammon

Analyzing GamesGrid matches  (Roy Passfield, Dec 2001) 

Batch analysis tool  (Øystein Johansen, June 2004) 

Cache size  (Ned Cross+, Mar 2004) 

Compiling for Windows  (Øystein Johansen, Jan 2002) 

Edit mode removing checker from bar  (Scott Steiner+, May 2003) 

Entering an annotated match  (Albert Silver, Dec 2003) 

Error rates: Gnu vs. Snowie  (Raccoon, Mar 2006) 

Even-ply/odd-ply effect  (Raccoon, Nov 2004) 

Even-ply/odd-ply effect  (Tom Keith+, Oct 2003) 

Even-ply/odd-ply effect  (Scott Steiner+, Dec 2002) 

Filter settings  (Robert-Jan Veldhuizen, Nov 2004) 

Gnu 0.13 versus Jellyfish and Snowie  (Torsten Schoop, Aug 2003) 

Gnu 0.13 vs. Snowie 4  (Albert Silver, June 2003) 

Gnu 0.14 vs. Jellyfish  (Michael Howard+, July 2003) 

Gnu versus Snowie and Jellyfish  (Michael Depreli, Oct 2005) 

How luck factor is calculated  (Gregg Cattanach, Aug 2002) 

How rollouts work  (Gary Wong, July 1999) 

How to enter an illegal move  (Øystein Johansen, Aug 2003) 

Importing .gam files  (PAR+, Mar 2005) 

Importing PartyGammon matches  (rew+, July 2006) 

Improving your game using GnuBG  (D.U.G.+, Nov 2002) 

Installing on Windows  (maareyes, Oct 2001) 

Interpreting JSD's  (Adrian Wright+, Feb 2005) 

JSD's and confidence intervals  (Daniel Murphy+, Jan 2005) 

Logging rollouts  (Øystein Johansen, Oct 2004) 

Luck rate  (Kees van den Doel+, May 2002) 

MWC versus Equity (EMG)  (Ken+, Apr 2005) 

Manually entering first roll  (Andreas Graf+, Apr 2005) 

Match equity tables  (Raccoon, July 2005) 

Personal reflections  (Louis Nardy Pillards, Sept 2002) 

Playing two computers against each other  (Stanley E. Richards+, Mar 2008) 

Python scripting  (Øystein Johansen+, Nov 2004) 

Quasi-random dice in rollouts  (Ian Shaw, Mar 2004) 

Question marks in game list  (Jim Segrave, July 2005) 

Questions and answers  (Jim Segrave+, Jan 2003) 

Questions and answers  (Jørn Thyssen, Aug 2002) 

Restarting a rollout with different settings  (Jim Segrave, Apr 2005) 

Restarting a rollout with different settings  (Robert-Jan Veldhuizen, Apr 2004) 

Rollout settings  (geoff arnold+, Apr 2007) 

Rollout settings  (Stick+, Nov 2005) 

Rollout settings  (Robert-Jan Veldhuizen, Mar 2004) 

Rollout settings  (Ian Dunstan, Aug 2003) 

Rollout settings for the impatient  (Robert-Jan Veldhuizen, June 2004) 

Running rollouts in background  (Bruce+, Apr 2004) 

Saving rollout results from command-line interface  (Jeremy Bagai+, Apr 2006) 

Saving rollouts  (Mislav Radica+, May 2006) 

Setting GnuBG's playing strength  (JP White, Sept 2001) 

Setting skill level  (Jim Segrave, Apr 2004) 

Setting up and saving a rollout  (Albert Silver, Dec 2003) 

What's GNU?  (Gary Wong, Oct 2001) 

Which player is player 0?  (Neil Kazaross+, Oct 2004) 

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