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Morelia-Linares Tournament

Viswanathan Anand8.5/14(+4 -1 =9)[games]
Magnus Carlsen8/14(+5 -3 =6)[games]
Levon Aronian7.5/14(+3 -2 =9)[games]
Veselin Topalov7.5/14(+5 -4 =5)[games]
Teimour Radjabov7/14(+2 -2 =10)[games]
Vassily Ivanchuk6.5/14(+2 -3 =9)[games]
Peter Leko5.5/14(+2 -5 =7)[games]
Alexey Shirov5.5/14(+2 -5 =7)[games]
* Chess Event Description
Morelia-Linares (2008)

The 25th edition of the Linares tournament was held in two countries for the third and last time, with the first half in Morelia, Mexico (February) and the second half in Linares, Spain (February and March). The participants were: World Champion Viswanathan Anand (Elo ranked #1 in the world), Veselin Topalov (#3), Alexei Shirov (#7), Peter Leko (#8), Vassily Ivanchuk (#9), Levon Aronian (#10), Teimour Radjabov (#12), and Magnus Carlsen (#13). In Linares, the games were played in Teatro Cervantes, not in Hotel Anibal (as usual since 1988). Games started 3:30 pm in Morelia and 4 pm in Linares, local time. Anand won with 8.5/14.

Morelia, Mexico (15-23 Feb) and Linares, Spain (28 Feb - 7 March)

Age Elo 01 02 03 04 05 06 07 08 1 Anand 38 2799 ** 1˝ 0˝ ˝˝ ˝˝ ˝˝ 1˝ 11 8˝ 2 Carlsen 17 2733 0˝ ** 1˝ 11 0˝ ˝1 ˝0 ˝1 8 3 Aronian 25 2739 1˝ 0˝ ** 01 ˝˝ 1˝ ˝˝ ˝˝ 7˝ 4 Topalov 32 2780 ˝˝ 00 10 ** ˝˝ 1˝ 11 01 7˝ 5 Radjabov 20 2735 ˝˝ 1˝ ˝˝ ˝˝ ** ˝˝ 0˝ 01 7 6 Ivanchuk 38 2751 ˝˝ ˝0 0˝ 0˝ ˝˝ ** 11 ˝˝ 6˝ 7 Leko 28 2753 0˝ ˝1 ˝˝ 00 1˝ 00 ** ˝˝ 5˝ 8 Shirov 35 2755 00 ˝0 ˝˝ 10 10 ˝˝ ˝˝ ** 5˝

Category: XXI (2756). Arbiters: Juan Vargas and Faik Gasanov.

Official site: Carlsen vs Shirov video (Round 9):

The 3rd Morelia Open was played 14-17 February. It was won by Alejandro Ramirez Alvarez with 6.5/8. The 2nd Ibero-American Championship was played in Morelia and Linares 14 February - 8 March. It was won by Julio Ernesto Granda Zuniga.


ChessBase, 3/7/2008 (
ChessBase, 2/28/2008 (
ChessBase, 2/24/2008 (
FIDE rating list January 2008 (
Mark Crowther in TWIC 694 (
David Llada blog, 20 March 2008 (
Spanish ChessBase, 08/03/2008 (
Ian Rogers in Norsk Sjakkblad, 2/2008, pp. 12-16 (
Macauley Peterson in USCF website, 26 February 2008 (
Amador Rodriguez Cespedes in Peón de Rey, No. 74 (May-June 2008), pp. 7-20 (

Previous edition: Morelia-Linares (2007). Next: Linares (2009)

Round dates: February 15, 16, 17, 19, 20, 22, 23 in Morelia; Feb 28, 29, March 1, 3, 4, 6, 7 in Linares (from ChessBase and and

 page 1 of 3; games 1-25 of 56  PGN Download
Game  ResultMoves YearEvent/LocaleOpening
1. Topalov vs Aronian 1-0372008Morelia-LinaresE21 Nimzo-Indian, Three Knights
2. Carlsen vs Ivanchuk ½-½392008Morelia-LinaresB90 Sicilian, Najdorf
3. Shirov vs Anand 0-1302008Morelia-LinaresB96 Sicilian, Najdorf
4. Leko vs Radjabov 1-0372008Morelia-LinaresB33 Sicilian
5. Shirov vs Carlsen ½-½392008Morelia-LinaresB42 Sicilian, Kan
6. Ivanchuk vs Leko 1-0432008Morelia-LinaresC84 Ruy Lopez, Closed
7. Radjabov vs Topalov ½-½412008Morelia-LinaresC67 Ruy Lopez
8. Anand vs Aronian 0-1342008Morelia-LinaresC89 Ruy Lopez, Marshall
9. Carlsen vs Anand 0-1592008Morelia-LinaresD44 Queen's Gambit Declined Semi-Slav
10. Leko vs Shirov ½-½372008Morelia-LinaresB90 Sicilian, Najdorf
11. Aronian vs Radjabov ½-½242008Morelia-LinaresE61 King's Indian
12. Topalov vs Ivanchuk 1-0462008Morelia-LinaresB90 Sicilian, Najdorf
13. Anand vs Radjabov ½-½222008Morelia-LinaresC63 Ruy Lopez, Schliemann Defense
14. Shirov vs Topalov 1-0632008Morelia-LinaresB33 Sicilian
15. Ivanchuk vs Aronian 0-1602008Morelia-LinaresC84 Ruy Lopez, Closed
16. Carlsen vs Leko ½-½412008Morelia-LinaresE32 Nimzo-Indian, Classical
17. Radjabov vs Ivanchuk ½-½382008Morelia-LinaresB46 Sicilian, Taimanov Variation
18. Leko vs Anand 0-1452008Morelia-LinaresB90 Sicilian, Najdorf
19. Aronian vs Shirov ½-½182008Morelia-LinaresA21 English
20. Topalov vs Carlsen 0-1442008Morelia-LinaresB04 Alekhine's Defense, Modern
21. Topalov vs Anand ½-½422008Morelia-LinaresE21 Nimzo-Indian, Three Knights
22. Aronian vs Leko ½-½502008Morelia-LinaresA33 English, Symmetrical
23. Radjabov vs Carlsen 1-0432008Morelia-LinaresC65 Ruy Lopez, Berlin Defense
24. Ivanchuk vs Shirov ½-½272008Morelia-LinaresD43 Queen's Gambit Declined Semi-Slav
25. Leko vs Topalov 0-1382008Morelia-LinaresB80 Sicilian, Scheveningen
 page 1 of 3; games 1-25 of 56  PGN Download
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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 104 OF 203 ·  Later Kibitzing>
Feb-27-08  littlefermat: <positionalgenius: I bet you are under the age of 16 Pawnsgambit.>

Well, at the very least, he has the maturity level of a 16-year old....

Premium Chessgames Member
  Peligroso Patzer: <When does round 8 begin?>

Thursday (28 February) at 10:00 a.m. EST.

Feb-28-08  hovik2003: This gigantesque numbers and calculation on these previous pages reminds me the legend about inventor of chess game itself. The story goes after he presented his new designed game to the royal court( could be Lydian or Indian or maybe Persian), the king liked the game so much that he granted him the right to ask for anything he wished for, the inventor humbly asked instead of gold and jewlery to be paid off by wheat grains, in a manner of that in first square of chessboard 2 grains, in the second 4 grains, in the third 8 grains and so on to the last 64th square. After hearing his proposal king and every body in the court started to laugh at him and called him crazy and deranged. But next day after royal mathematician of those days coudn't even calculate the exact number but estimated that king should give him all the wheat in the silos plus wheat and barley produced in the country for three thousand years thenafter.

By todays factorial math it is easy to reach the solution: 2^64=18,446,744,073,709,551,616
Say 30 grains=1gm so 1 ton=30,000,000 grains
2^64/3^7 = 615 billion tons of wheat!!
Today's world output of wheat is about 1.3 billion tons annually, so just imagine!, and his royal highness learned a hard lesson about human mind's imagination and fantasy, and only thing funny in that day was their ignorance!

Premium Chessgames Member
  WillC21: <frogbert><pawnsgambit> I think, actually, frogbert's math is correct here, given that he is disregarding pruning efficiencies. Not sure what his final number is(too lazy to go back and look), but it's massively large per my calculations, even for a "monster" like Blue Gene. Let's assume Blue Gene's 135 trillion/sec calculations converts "neatly" to 135 trillion nodes(positions) per second (I know it's not meant for chess, but let's disregard that point and pretend it is). My math:

Consider that the "average" snapshot of a board during a game may contain, for whomever color's move it is, 20 possible responses (maybe it's higher or lower, but 20 seems fair enough to me).

1) 30 ply = 20^30 total positions to examine.

2) Time in seconds for Blue Gene to process such positions: (20^30)/(135*10^12)

3) Time in years: ((2)Result)/(60*60*24*365)

Result = 2.52208*10^17 years

Or, expressed more plainly, the final result(3) would be over twenty-five sextillion years! Wow!

Feb-28-08  hovik2003: For your information "light year" is a astromomical unit for "distance" and not time. our whole universe is about 14 billion years old after BigBang, so logically speaking no creation or event could overpass the worped boundries of our space and time behind its limits.

But any way I think if the software doesn't include written sources for repeative transpositions, and various positional and material algorithms and restrictions, even Blue Gene or any other monster made in next one hundred years will blow its boards to pieces trying to calculate all the positions(nods) arrised in 50 move chess game from start up to the end.

Premium Chessgames Member
  brankat: Most fascinating conversation!

Since I know nothing about algorithms or chess engines, haven't even heard of any such thing as "Blue Gene" until now, I can just wish the human Tournament resumes soon :-)

Feb-28-08  Thorski: <Pawnsgambit: I also have got Masters in Electrical Engineering from Top US university.>

And here I was considering pursuing my graduate degree at a US school; surely a terrible mistake.

Premium Chessgames Member
  krivin: I remember reading 22yrs back about the number of games ( total) that could be played which ends in 30 moves in chess as 2 power 100.Funnily it was written that it will take so many yrs ( a very big number this too) to even play out all these games by the population of the world at that time.!! If this is so with 30 move games.. what to say of those games ending in 40, 50 ..100 and so on?!!! It looks it is inexhaustible...We may need infinite energy , infinite time to actually see all thses things in reality for one single human being.. An intelligent man will leave the numbers as it is and allow the mind to rest in peace for ever without breaking himself.. All your calculations will have only theoretical value.No single man or even machine will be able to make use of it fully.. So Chess is Infinite in Nature Nature itself.
Premium Chessgames Member
  Strongest Force: Any top GM or even ordinary master who has deeply studied the optimum ways in which a human can beat a top program clearly knows that a Rybca is most vulnerable when faced with a closed-position and pawns and pieces are rushing-towards the program's king. Many programers, like angry fathers, have hired top GMs to figure-out ways to keep their "children" from getting beat. The way to keep the comp-beaters at bay was to rotate different opening systems as much as possibleso as to keep the human off-balanced as much as possible.
Premium Chessgames Member
  jedrus07: By the way do You know that PlayStation 3 runs at 2 teraFLOPS as wikipedia claims? I think Random visitor has roughly the same power (propably greater) in his pc and he gets 30ply in week... That means to get 60ply in week you need (2 teraFLOPS)^2 power... So... It is... 4000000000000 teraFlops... A bit higher then BlueGene so far... If You see any mistake, feel free to criticize.

And now lets hope that second part of the tournament starts soon so we can discuss new games!

Premium Chessgames Member
  badest: The numbers are fascinating! However, in order to get somewhere one needs to have "better" algorithms (better being faster). This is to get to 30ply and beyond...

Until P=NP is cracked, maybe one will settle with some type of probabilistic algorithms (in order to subdue the complexity of the problem).

Premium Chessgames Member
  minasina: <Peligroso Patzer: <When does round 8 begin?> Thursday (28 February) at 10:00 a.m. EST.>

Is it really at 10? I thought it should have been at 9:30 AM EST (GMT -5)? Well...maybe it is the time to start Chessdom commentaries:

Feb-28-08  squlpt: It is impossible these days to reach 30 ply in a relatively short period of time (week) without a decent amount of pruning. Take away the pruning and the fastest super pc today would not reach it before the sun burns up the earth in 4-5 billion years or so
Premium Chessgames Member
  erniecohen: I wouldn't get too excited about quantum computing for chess. First, there are efficient quantum algorithms only for a few problems (factoring, linear search); for general NP problems, the best speedup now is only quadratic (which means that the best you can hope for is a doubling of ply, and that only in comparison to a program that doesn't consider transpositions). Second, the largest credible working quantum computer is only about 6 bits.

I would wager that before quantum computers can compete with classical computers in chess, chess will have been weakly solved (i.e., we'll have a program that can provably force a draw with black), like checkers has. This might well happen in our lifetimes.

Feb-28-08  robertgida: Where is the official website of Linares part?
Feb-28-08  vlado23: There's a good intro to the techniques chess engines use here:

<Pawnsgambit: According to your math, it should take zillions of years to do a simple 30 ply analysis. That is unrealistic and impossible.>

Its not unrealistic, as others have pointed out a full-width of all positions to 30-ply would take a v.v.v. long time.

No chess engine does full-width searches beyond a few ply.

Feb-28-08  bgkuzzy: Now that we discovered water on Pluto, can someone tell me the live page?
Premium Chessgames Member
  minasina: <bgkuzzy: Now that we discovered water on Pluto, can someone tell me the live page?>

Sorry, I can't - yet? At the moment I only know these Chessdom commentaries: with IM Miodrag Perunovic and Goran Urosevic with GM Vladimir Dimitrov

Feb-28-08  child in time: <hovik2003> Just a small correction. He should've earned a bit more since he would've got the grains from the 63rd square and so on... Nevertheless, he wasn't humble in his request...
Premium Chessgames Member
  jedrus07: I really like Shirov, but thats why I fell sorry for him already... I belive he would be able to beat Anand, but maybe its some kind of psychological barier that makes him his punchbag... Lets hope he can overcome that while playing in his country! I would like to see e4 e5 in this game and then sth different from sicilian and petrof. Do You have any predictions?
Premium Chessgames Member
  zduric: <child in time>
1+2+4+...+2^63 = (2^64)-1
Feb-28-08  slomarko: <Strongest Force: Any top GM or even ordinary master who has deeply studied the optimum ways in which a human can beat a top program clearly knows that a Rybca is most vulnerable when faced with a closed-position and pawns and pieces are rushing-towards the program's king> its called Rybka not Rybca. btw <strongest force> how did you enjoy the Aeroflot tourney especially Caruana's "performances"? (that is losing to unknown IMs)
Feb-28-08  0817: Does anyone know any site where one can watch all the games live? Thanks
Premium Chessgames Member
Feb-28-08  Joshka: What are the pairings??..who does Magnus play today? they just continue the rotation from the last 7 rounds?..thanks in advance
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