GREAT GAMBIT TOURNAMENT
since December 2009
Bild
Juan Manuel Bellon with his familiy
Gambit no. 9
English Opening
A22 Bellon Gambit
1.c4 e5 2.Nc3 Nf6 3.Nf3 e4 4.Ng5 b5
Bellon Lopez, Juan Manuel
Federation Spain, FIDE title Grand Master, Rating: 2440 (jan 2010), born 1950, Spain.
Living creators (author, name giver, eponym, inventor, forger) of chess gambits are very rare, most of openings are already marked by the masters of the last centuries.
Here we have one. The picture shows Juan Manuel Bellon with his familiy. He is married with the well known Swedish world class player, Grandmaster Pia Cramling (Elo 2528, jan 2010) who takes the 6th place among the top 100 woman.
Bellon and Cramling belong today to the German Bundeliga team of SK Turm Emsdetten. The Bundesliga is the premier league of team chess Germany. It is probably the strongest and longest running league of its kind, attracting many top grandmasters from Europe and beyond.
Tim McGrew writes in ChessCafe: ....Now onward, and let me introduce the Bellon Gambit!
1.c4 e5 2.Nc3 Nf6 3.Nf3 e4!? 4.Ng5 b5!?
According to all of my printed sources, this outrageous thrust was introduced by Juan Bellon Lopez against Samuel Reshevsky at Palma de Mallorca in 1971. But the ChessBase online database gives the game Weber-Bellon Lopez from the 1969 under 20 World Championship as the oldest game in the line. This is a bit of a mystery (Ed Winter, are you out there and listening in?) but apparently there is no need to worry about renaming the gambit.... Read on http://www.chesscafe.com/text/mcgrew04.pdf
Win% Bellon Gambit
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Games : 42 (finished)
White Wins : 17 (40.5 %)
Black Wins : 7 (16.7 %)
Draws : 18 (42.9 %)
Unfinished : 0
White Perf. : 61.9 %
Black Perf. : 38.1 % Gambit accepted or not
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accepted: 6 /42; declined: 36 /42
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5. d3 26 x
5. cxb5 6 x
5. Nxb5 5 x
5. Qc2 3 x
5. e3 2 xBellon Gambit, Human Chess
Internet Database
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Partite 1-0 =-= 0-1 Score
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323 124 82 117 51.0%
Starting evaluation in the view of the gambit player (Black) after 4. b5
(- )0,45 - (-0,7 ) cp for the gambit player
Mean = - 0,46.
After more gambits the means of evaluation will be correlated with the scores.
Crosstable, Bellon
GGTJan10_4221_10+12_A22 Bellon
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1 2 3 4 5 6 7
1 Rybka 3 ** 01 ½½ 11 1½ 11 ½½ 8.5/12 46.75
2 FireBird 1.0 beta x64 mp 10 ** 01 ½½ 11 ½1 11 8.5/12 44.25
3 Naum 4 MPx64 ½½ 10 ** ½½ 0½ 01 ½1 6.0/12 34.75
4 Stockfish 1.6 JA 64bit_dec09 00 ½½ ½½ ** 1½ 1½ ½½ 6.0/12 32.50
5 Zappa Mexico II 0½ 00 1½ 0½ ** ½1 ½1 5.5/12
6 Deep Shredder 12 x64 FrGui 00 ½0 10 0½ ½0 ** 11 4.5/12
7 Deep Fritz 11 ½½ 00 ½0 ½½ ½0 00 ** 3.0/12 42 games
Firebird and Rybka once again with the same number of points, but the better scoring against Stockfish entails the tie-breaking for Rybka (46.75) . Fritz without a win.
Scores of all 9 gambits
Table of points: Amar,Ware,Sokolsky,Swiss,From,Sturm,Lisitsin,Jaenisch,Bellon
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GGTJan10_4221_10+12_Amar-Bellon
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1: FireBird 1.0 beta x64 mp 74.0 / 108
2: Rybka 3 72.5 / 108
3: Naum 4 MPx64 50.0 / 108
4: Stockfish 1.6 JA 64bit_dec09 50.0 / 108
5: Deep Shredder 12 x64 FrGui 48.0 / 108
6: Zappa Mexico II 45.5 / 108
7: Deep Fritz 11 38.0 / 108
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378 games: +94 =158 -126 Place 1-2 Firebird or Rybka (probably no significance)
Place 2-4 Naum, Stockfish, Deep Shedder (you can squint to the lists, but here is everything still open. I don't believe you get a significant selection for these three engines on this tournament.
Place 5 Zappa Mexiko (significant below rank 4)
Place 6 Deep Fritz (significant below Zappa)
Contrary to CEGT (40/20 4 CPU)and CCRL (40/40 4 CPU) Deep Fritz 11 should drop significantly below Zappa Mexico II on this tournament. There are a few hypotheses that this ranking will probably happen, but for the moment I let them still in the quiver of speculations.
Table of Elo points: 9 gambits
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Program Elo + - Games Score Av.Op. Draws
1 FireBird 1.0 beta x64 mp : 3195 53 52 108 68.5 % 3060 38.9 %
2 Rybka 3 : 3185 52 50 108 67.1 % 3061 41.7 %
3 Naum 4 MPx64 : 3057 47 48 108 46.3 % 3083 48.1 %
4 Stockfish 1.6 JA 64bit_dec09 : 3057 47 47 108 46.3 % 3083 50.0 %
5 Deep Shredder 12 x64 FrGui : 3046 56 57 108 44.4 % 3085 27.8 %
6 Zappa Mexico II : 3032 49 49 108 42.1 % 3087 45.4 %
7 Deep Fritz 11 : 2988 51 52 108 35.2 % 3094 40.7 %
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games 378. EloStat. Start Elo 3080.PGN-link:
http://www.file-upload.net/download-227 ... n.pgn.html
Next: A40 Englund Gambit
Test conditions
Starting positions: suite of 100 gambits sorted by Elo number.
Time Control: short tournament level with 40/20', 20/10', 10'+12''.
System: Intel Core i7 920, oc 3700 MHz, 6 GB RAM. Hyperthreading off, Turbo Mode off. Vista 64Bit
Parameter: 3 Threads, ponder off, 1,2 GB Hash, EGTB 3-4-5 (not used by Firebird and Stockfish, but sometimes used by the GUI, even for both engines)
Fritz11-GUI: remis never, resign late.
CU next round
Rainer Neuhäusler