RoShamBo Ratings

Ratings have been computed for almost all programs in the first and second RoShamBo programming competitions, using a program provided by Michael Gherrity, which is based on the Glicko system used for USCF chess ratings. Note that these ratings tend to show each program's strength in match-play events, and do not reflect the margin of victory component of the RoShamBo competitions.

The following ratings are the average of 10 independent sets of 100 consecutive 6-round Swiss-system tournaments, and should be accurate to within about +/- 10 points. Players over 2200 are designated a Master, and over 2000 are deemed a Candidate Master.


  Rk C Player Name        Rating

   1   Greenberg           2307
   2   MEMinator           2284
   3   Iocaine Powder      2267
   4 s MemBot              2244
   5   Land War in Aisa    2234
   6 s TinyMetaDave        2208
   7   General Predictor   2206
   8   Phasenbott          2202
   9 s LittleMemBot        2182
  10   NeuroHog            2180
  11   Roshambot           2178
  12   Harmless            2178
  13   Philby              2173
  14   ZQ Bot              2163
  15 s AbRasiF             2148
  16 s Black Box           2143
  17   ACT-R Plus          2140
  18   Rashomon            2134
  19   Hexbot              2095
  20 s SonOfPsychoRock     2091
  21 s Griffin             2091
  22 s PredictorArrayBot   2089
  23   Two Bit Matcher     2064
  24   MegaHAL-DB          2060
  25   Paper Chase         2051
  26 s Shofar              2048
  27   Simple Modeller     2043
  28   Majikthise          2043
  29   RussRocker4         2038
  30   Vroomfondel         2024
  31   Russrocker5b4       2022
  32 s Buffy : Wonder Dog  2016
  33 s ACT-R Lag2          2011
  34   Immanuel Kant       2011
  35   BillBot             2004
  36   Biopic              1997
  37 s The Tao             1993
  38   LZ Bot              1990
  39 s Little Boy          1988
  40   Bugbrain            1988
  41   Robertot            1962
  42 s Stripped LZ Bot     1955
  43   Gypsy               1953
  44 d DeBruijnize5        1928
  45   LZDIFF              1926
  46 d Pi                  1923
  47 d De Bruijn           1922
  48   Shrub               1920
  49 s Mini LZ Bot         1919
  50   GNADS^2             1918
  51 d DeBruijnize4        1914
  52   Roshambot_Off       1894
  53   LZ                  1889
  54   LZADAPT             1877
  55   Simple Predictor    1865
  56   Boom                1862
  57   SMAC Bot            1856
  58   RoShamBort 1.0      1856
  59 s N Groups            1849
  60   Context Predictor   1848
  61 s Henny               1827
  62 s Mixed Strategy2     1811
  63   Granite             1809
  64   JM's best player    1804
  65   Marble              1800
  66 d Random (Optimal)    1800
  67 s DrDeductor          1790
  68 s Inconceivable       1777
  69   Cycles              1751
  70 s Sweet Rocky         1731
  71 s Piedra              1731
  72   Newton              1708
  73   Benbot              1708
  74 s Abbot               1705
  75   PsychoRock          1702
  76 s El                  1679
  77 d Add-Mix2            1678
  78 d Anti-rotn           1674
  79 s Littlestone         1656
  80   Inocencio           1655
  81   The Analyzer        1653
  82   Sikandarbot         1639
  83   Vorpalbot           1636
  84   GNADS               1626
  85   Naivete             1625
  86   Ramdu               1617
  87 d Foxtrot             1616
  88 s melPlayer           1615
  89 s Mouse               1614
  90   BoomRash            1610
  91   Multi-strategy      1595
  92 s Peterbot            1593
  93   QDScanner           1591
  94 s Amalgam             1590
  95 d Foxtrot2            1586
  96 d Add-Mix             1586
  97   Drew's Bot          1578
  98 s Asterious           1574
  99 d Add-drift           1559
 100 s Beat Gambits        1545
 101 d Flip-Flop S/F       1541
 102 d Shift-Rotate        1534
 103 d Flat                1521
 104 d Add-react           1516
 105 s Cheesebot           1503
 106 d Beat The Last Move  1501
 107 s Anonymous           1498
 108   Knucklehead         1498
 109   Robbot              1494
 110 d Always Switchin'    1488
 111 d Switch A Lot        1487
 112 d Copy-drift          1477
 113 d Flip-Flop R/B       1457
 114 d Text                1426
 115 s WeightedFreq        1423
 116 d Rotate R-P-S        1395
 117 s Tit-for-Tat         1385
 118 d Beat Frequent Pick  1374
 119 s Bait and Switch     1351
 120 d R-P-S 20-60-20      1345
 121 s Rock'em Sock'em     1342
 122 d R-P-S 20-20-60      1332
 123 d Good Ole Rock       1327
 124 d Anti-Flat           1299