The Week in Chess by Mark Crowther

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Kramnik vs Deep Fritz. A Brain Games Event


International Computer Chess Association ( ICCA ) tournament

The ICCA considers itself the sanctioned body to determine the annual computer chess champion similar to FIDE. However, the ICCAs prestige has dropped considerably over the last several years. The key problem with the tournament is only a handful of chess programs participate. The main reason is the tournament is normally held in Europe and programs must be operated at the location, so many potential participants cannot get to the playing site in person. In addition, the cost and logistics of getting to the playing site. Furthermore, the ICCA has the bad habit of changing the rules at the last moment causing further problems for participants.

There are literally hundreds of computer chess engines available and yet only a small percentage participates in the tournament. The cure for this problem is quite simple, have the tournament on the Internet, preferably at the Free Internet Chess Server ( FICS ), this way many programs can participate. The ICCA should seriously consider this or face the fact that it is becoming a non-entity.

This year’s tournament had new rules about titled winners, which are rather confusing. The three titles are 1) Single-CPU 2) Multi-CPU and 3) Amateur. Amir Ban, Israel, the author of Deep Junior responded to the following questions;

Q1. "What did you think about the multi category championship?"

A1. "I said it very plainly in the players meeting before the tournament start: the multi category makes no sense, and I don't consider myself competing in it. I used a dual not to be in the category, but to give me a better chance to win the tournament.

There was discussing of which playoff to hold in case of ties, and the following possibility came up:

The tournament ends with three programs tied, ranked by tie-breaking point; (1) multi (2) single (3) multi. What playoff to hold? It was decided (1) will be declared tournament winner, (2) will win the single title, and (1) & (3) will playoff for the multi title, with the ridiculous possibility that (3) will win and (1) will remain as "only" the tournament winner.

I said if this came up, and I was (1), I would have no interest in winning the playoff game, and may just forfeit it.

Regarding the single event, it's questionable too, because several of their strongest single opponents were missing, having chosen to play dual."

Q2. "Do you feel your title has been tarnished to any degree that Shredder is the single CPU title holder?"

A2. "No. It would have been if ( single-CPU ) Junior7 had played in this tournament, but it didn't."

Q3. "How would you like to see the title organized?"

A3. "In such an event the only titles that make sense are overall champion and the amateur title. The multi and single titles are ICCA nonsense. The single title should be awarded in a single-only event. The multi title makes no sense at all, because any multi can be a single if he chooses to."

This year's tournament had eighteen participants playing nine games with the final standings as follows:

 1 Deep Junior                     8.0 44.5 Dual
 2 Quest (Deep Fritz)              6.0 47.0 Dual
 3 Shredder                        6.0 41.5 Single
 4 Gromit 3.9.5                    5.5 39.0 Single
 5 Chess Tiger 14.6 Gambit Tiger   5.0 50.5 Single
 6 Rebel                           5.0 47.5 Single
 7 Crafty 18.10X                   5.0 47.0 Dual
 8 Goliath                         5.0 44.5 Single
 9 Ferret                          5.0 40.0 Dual
10 Gandalf 5.0                     5.0 38.5 Single
11 ParSOS                          5.0 34.0 Dual
12 Diep                            4.0 38.0 Dual
13 Tao                             4.0 36.0 Single
14 IsiChess X                      3.5 36.5 Single
15 Ruy Lopez                       3.0 37.0 Single
16 Pharaon                         3.0 35.5 Single
17 SpiderGirl                      2.5 34.5 Single
18 XiniX                           0.5 37.0 Single

The separate blitz tournament title winner is the freeware program Goliath.

Many of you reading this article may be wondering why Deep Fritz 7 ( DF7 ) did not participate. In fact, DF7 is playing in Maastricht, but under the secret 'nom de guerre' Quest, however, not so secret. Worried that the prestige of the GM Kramnik match will be tainted if DF7 does anything other than win, which it did not do. Rumours have it that Quest is a DF7 version tweaked to play against computer chess programs.

Certainly the most talked about game of the tournament is between Ferret, authored by Bruce Moreland, USA and Gandalf 5, authored by Steen Suurballe, Denmark. This game is a tactical nightmare and quite interesting to play through.

Further information on the match and to download the games can be found at the following URL: http://www.cs.unimaas.nl/olympiad/

(1) Ferret - Gandalf
WMCCC - Round 2 Maastrict, 19.08.2001
[Annotator Sean Evans]

C92: Closed Ruy Lopez: 9...Be6, Karpov and Flohr-Zaitsev Variations Certaintly the most talked about game of the tournament is between Ferret, authored by Bruce Moreland, USA and Gandalf 5, authored by Steen Suurballe, Denmark. This game is a tactical nightmare and quite interesting to play through.

Game in PGN

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.0-0 Be7 6.Re1 b5 7.Bb3 d6 8.c3 0-0 9.h3 Bb7 10.d4 Re8 11.Nbd2 Bf8 12.a4 h6 13.Bc2 exd4 14.cxd4 Nb4 15.Bb1 g6+/= Diagram

[15...c5= keeps it even] 16.Ra3 Bg7 17.Nh2+/= [17.e5 dxe5 18.dxe5 Nh5+/- Anand,V-Kamsky,G - Las Palmas 1995] 17...c5 18.d5 Nd7 19.Ndf3 h5= [19...Nb6+/= Khalifman,A-Gavrilov,A/St Petersburg 1994] 20.Nf1 bxa4 21.Qxa4 a5 22.Ne3 Ba6 23.Qd1=/+ and black begins to build an advantage 23...c4 24.Nd2 Ne5 25.Rf1 Qb6 26.Kh2 c3 27.bxc3 Bxf1 28.Qxf1 Na6 29.Rb3=/+ [29.Bc2 is better for white] 29...Qc7 30.c4-/+ [30.f4 Nc5=/+ is better for white] 30...Nb4 31.Qd1 Nd7 32.Nef1 Nc5-/+ # black co ntinues to build small advantages with each move, white does not appear to have any plan and is floundering 33.Rf3 a4 34.Kg1 Reb8 35.Rg3 Qe7 36.Ba3 Be5 37.Re3 Bf4 38.Rf3 Qe5 39.h4 Bh6 40.Ne3 Nb3 41.Ndf1 Bxe3 42.Nxe3 Qa1 43.e5 Qxa3 black has piled up a lead of approximately +2.25 points after this move 44.Rxf7!? Diagram

This exchange sacrifice wins the 'Chess Bot News' brilliancy prize of the tournament. Well, may be not, but certainly it turns out to be the most interesting and talked about move. This is what Bruce Moreland stated after the game about this move: "Ferret was never happy, but it thought it was doing not terrible after the exchange sacrifice, which is some bad thinking in my opinion. It was an embarassing game because the program tried to play on the q-side. The position degenerated due to lack of any plan and any counterplay, until at the point where Ferret played e5 and it was perhaps -3.70 points behind. It seems to me that e5 was just thrashing, although obviously it was correct thrashing. There was a fail-high on that move. My instinct is that this was the crucial move and not Rxf7. Rxf7 was still about 2 points in favour of black. I think it expected Qc1 after that but I am not sure. Once it got to play the queen out, it thought it was a draw approximately, or perhaps exactly. Gandalf's score varied from +0.8 to over +3.0 during the game 50... Kc8 was the move that caused Ferret to go positive. To those of you who are wondering what I was thinking, I was thinking about throwing up." 44...Kxf7-/+ Ouch! Black takes the bait by underestimating the myriad of upcoming queen checks, this reminds us of a human player blinded by the opportunity for material gain. [44...Qc1 this move forces a queen exchange and blunts white's future queen attack plans. 45.Qxc1 Nxc1 46.Bxg6-+ with the queens off the board and up a rook, black should coast to a win] 45.Qf3+ and the comeback of the tournament is on 45...Kg8 46.Qf6 Qa1 47.Qe6+ Kf8 48.Qxd6+ Ke8 49.Qxg6+ Kd8 50.d6= # the game is evened up now 50...Kc8?!+/= black makes a tactical move error; two choices to keep the game even are: A. 50...Qxe5 51.Bf5 = and B. 50...Ra7 51.Qg8+ = 51.Qf7 Qxb1+ 52.Kh2 Na6 53.e6 Nbc5 54.e7 Qe4 55.d7+ Nxd7 56.e8Q+ Qxe8 57.Qxe8++/- Diagram

White is leading now by more than +1.00 point. This is a tactically difficult position for a human to play from, with blacks king exposed, two rooks, two knights and a passed pawn versus white's well protected king, a queen, one knight and two passed pawns. Let's see how the programs handle the position. 57...Kc7 58.Nd5+ Kc6 59.Qe6+ Kc5 60.Qxd7 a3 61.Qf5 Kxc4 62.Ne3+ Kc3 63.Qc2+ Kb4 64.Qc4+ Ka5 65.Qc3+ Kb5 66.Qb3+ Kc6 67.Qa4+ Kb6 68.Qxa3+- Diagram

a nice set of queen checks nets white the dangerous outside passed pawn, Ferret makes it look easy and has piled up a +2.25 point advantage. 68...Rh8 69.Qd6+ Kb5 70.Qe5+ Nc5 71.Qb2+ Kc6 72.Qf6+ Kb5 73.Nd5 white mercilessly checks the black king piling up a tactical advantage of +3.00 points, black simply cannot get anything going. 73...Rhc8 74.Qb2+ Kc6 75.Ne7+ and with white leading by 3.50 points black packs it in. This game certainly reflects that the silicon monsters still make mistakes and have a ways to go before they achieve tactical perfection. Strangley, Ferret is not available to the public as a freeware program or for sale as a professional program. 1-0

The views expressed here do not necessarily reflect those of TWIC, Chess & Bridge Ltd or the London Chess Center.

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