Battle of the Goths 10x8 Championship 2009

[hgm]

The last round contained a large number of surprises. Joker lost to TJchess twice, the first time because it seemed completely blind to a promotion, suggesting a bug somewhere. TSCP again had a very strong cycle, beating Smirf twice and TJchess once. Smirf lost and drew against Fairy-Max, while Fairy-max lost and drew against ChessV.

Result of all this upheaval is that the battle for second place was decided in favor of TJchess10x8, with a difference of only 1.5 point. TSCP Gothic beat Fairy-Max to the fourth place, with a lead of 4 points.

This led to the final standings:

Code: Select all

    name                       perc.  pnt games  Buchh    S-B

 1. Joker80 n                   92%  64.5 / 70  (2155.0, 1932.0)
 2. TJchess10x8 0.121           70%  49.0 / 70  (2310.0, 1284.3)
 3. Smirf 1.75t                 68%  47.5 / 70  (2325.0, 1264.5)
 4. TSCP Gothic                 54%  38.0 / 70  (2420.0, 955.5)
 5. Fairy-Max 4.8 v             49%  34.0 / 70  (2460.0, 758.8)
 6. ChessV 0.94                 41%  28.5 / 70  (2515.0, 570.8)
 7. ArcBishop80 1.00            14%   9.5 / 70  (2705.0, 233.8)
 8. BigLion80 2.23x             13%   9.0 / 70  (2710.0, 199.5)

Code: Select all

Cross table, sorted by score percentage, Buchholz, SB

                              Joker TJche Smirf TSCP  Fairy Chess ArcBi BigLi
 1. Joker80 n                 ##### 11111 11101 11=11 11111 11111 11011 11111
                              ##### 01100 11111 11111 11111 11111 11111 11111   92%  64.5 (2155.0, 1932.0)

 2. TJchess10x8 0.121         00000 ##### 01010 1=111 =0111 11111 11111 11111
                              10011 ##### 10000 =1010 01111 110=1 11111 11111   70%  49.0 (2310.0, 1284.3)

 3. Smirf 1.75t               00010 10101 ##### 01011 10100 11111 111=1 11111
                              00000 01111 ##### 11100 1110= 1=111 11111 11101   68%  47.5 (2325.0, 1264.5)

 4. TSCP Gothic               00=00 0=000 10100 ##### 11=11 11=00 11111 11010
                              00000 =0101 00011 ##### 0=111 11001 01111 11111   54%  38.0 (2420.0, 955.5)

 5. Fairy-Max 4.8 v           00000 =1000 01011 00=00 ##### 1=111 11111 11111
                              00000 10000 0001= 1=000 ##### 100=0 01111 11111   49%  34.0 (2460.0, 758.8)

 6. ChessV 0.94               00000 00000 00000 00=11 0=000 ##### 11111 =1111
                              00000 001=0 0=000 00110 011=1 ##### 11110 =1111   41%  28.5 (2515.0, 570.8)

 7. ArcBishop80 1.00          00100 00000 000=0 00000 00000 00000 ##### =1101
                              00000 00000 00000 10000 10000 00001 ##### 1000=   14%   9.5 (2705.0, 233.8)

 8. BigLion80 2.23x           00000 00000 00000 00101 00000 =0000 =0010 #####
                              00000 00000 00010 00000 00000 =0000 0111= #####   13%   9.0 (2710.0, 199.5)

[hgm]

The performance ratings from this tournaments are:

Code: Select all

Rank Name                Elo    +    - games score oppo. draws
   1 Joker80 n          2435  125   96    70   92%  1938    1%
   2 TJchess10x8 0.121  2172   81   76    70   70%  1975    6%
   3 Smirf 1.75t        2156   81   77    70   68%  1978    4%
   4 TSCP Gothic        2047   75   75    70   54%  1993    9%
   5 Fairy-Max 4.8 v    1990   74   74    70   49%  2001    9%
   6 ChessV 0.94        1921   73   75    70   41%  2011   10%
   7 ArcBishop80 1.00   1642   88  103    70   14%  2051    4%
   8 BigLion80 2.23x    1636   88  103    70   13%  2052    6%

To obtain them I used BayesElo, with an offset of 2000. There were four losses on time, one by Fairy-Max where it was just to be mated, and three by ChessV after the opponent castled. As castling usually happens in the beginning, the position was about equal in those three cases. But they were all against stronger opponents (Joker, SMIRF, TJchess), so they were not ery disruptive to the ratings of the opponents, which were expected to wn anyway. So I did not bother to delete those results before calculating the rating.

[Carlos777]

Thanks HGM for this great tournament. Looking forward to future chess variants tournaments. I think you already mentioned knightmate.

Regards,
Carlos

[TonyJH]

Thanks for running the tournament. I like this tournament format.
It seems that TJchess10x8 gets doubled or tripled pawns for itself more often than other programs, so I'm wondering if pawn eval is a weak spot for TJchess. I haven't looked at all the games, though.

[George Tsavdaris]

Thanks for the long and very informative reply.