Features comparison with other backgammon programs

Here is a comparison between eXtreme Gammon (2.01), Snowie (4.7.1), GnuBG (20110822) and BGBlitz (2.7.3).

Note: 1-ply, 3-ply etc... refers to eXtreme Gammon, Snowie and BGBlitz terminology. The GnuBG equivalent is 0-ply, 2-ply etc...

  eXtreme Gammon 2
$59.95		 Snowie
$365.00		 GnuBG
Free		 BGBlitz
$46.00
Version 2.01 4.7.1 0.90-mingw 20110822 2.7.3
Strength
   - PR (3-ply) 0.45 1.13 (-0.68) 1.07 (-0.62) 1.66 (-1.21)
   - PR (Strongest1) 0.12 1.13 (-0.68) 0.80 (-0.68) 1.66 (-1.54)
   - Multiple processor yes no yes yes
   - Multiple processor N-ply yes no no yes
   - Simple mode yes no no no
Analyze
   - Background Analyze yes no no no
   - Checker play according
     to Score in Rollouts		 yes no yes yes
   - Multi pass yes Notsure
(only choice of Rollout)		 no no
   - 4-ply, 5-ply yes no yes no
   - 6-ply, 7-ply yes no no no
   - XG Roller (Mini Rollout) yes Notsure
(Not for play or 1st pass analysis)		 no no
   - Batch Analyze yes yes Notsure
(Using command line)		 no
Game play
   - Background Analyze yes no no no
   - Tutor Mode yes no yes yes
   - Competition Mode yes no no no
   - Time Control yes no no no
   - Self play yes no Notsure
(not fully automated)		 yes
Speed2
   - Import a match no0.8 sec no15 sec
(19 times slower)		 yes0.2 sec
(4 time faster)		 yes0.2 sec
(4 times faster)
   - Analyze in 1-ply yes1.3 sec no23 sec
(18 times slower)		 no2.3 sec
(1.7 times slower)		 NotsureNA
   - Analyze in 3-ply yes6.5 sec no8 min 40 sec
(80 times slower)		 no19.6 sec
(3.0 times slower)		 NotsureNA
   - Rollout 3-ply Game 9
     Drop (108 games)		 yes12.2 sec no4 min 59 sec
(25 times slower)		 no1 min 07 sec
(5.5 times slower)		 no13 min 25 sec
(65 times slower)
   - Rollout 3-ply Game 16
     Double (108 games)		 yes11.6 sec no5 min 30 sec
(28 times slower)		 no44 sec
(3.8 times slower)		 no8 min 00 sec
(41 times slower)
   - Total yes32.4 sec no19 min 47 sec
(37 times slower)		 no2 min 13 sec
(4.1 times slower)		 NotsureNA
Import
   - GammonSite yes yes yes yes
   - Games Grid yes yes yes yes
   - TrueMoney Games yes yes yes no
   - PartyGammon yes no yes no
   - BGRoom yes no yes yes
   - NetGammon yes yes yes yes
   - Position from ascii board yes no no no
   - Real Money Support yes no no no
Save game size
   - Save Game Size 399 KiB 899 KiB 1583 KiB NA
   - Export HTML size 4880 KiB 2824 KiB 6911 KiB 4670 KiB
   - HTML image folder size 386 KiB 856 KiB 2029 KiB 612 KiB

1 Strongest level (in a reasonable time):
   - eXtreme Gammon: XG Roller++
   - GnuBG: 4-ply
   - Snowie: 3-ply
   - BGBlitz: 3-ply

2 Speed test was determined using the following match: eXtremeGammon1-eXtremeGammon2 25 points match.mat and on a computer with a Intel Core i7 2600K at 3.40 GHz. (GnuBG, BGBlitz and XG were ran using 8 threads)
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