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Carlsen 
Photo courtesy of Magnus Carlsen's Official Facebook Page.  
Magnus Carlsen
Number of games in database: 1,668
Years covered: 2000 to 2014
Last FIDE rating: 2863 (2855 rapid, 2948 blitz)
Highest rating achieved in database: 2882
Overall record: +419 -176 =463 (61.5%)*
   * Overall winning percentage = (wins+draws/2) / total games
      Based on games in the database; may be incomplete.
      610 exhibition games, odds games, etc. are excluded from this statistic.

MOST PLAYED OPENINGS
With the White pieces:
 Sicilian (166) 
    B90 B40 B30 B43 B46
 Ruy Lopez (105) 
    C78 C65 C84 C67 C88
 Slav (57) 
    D15 D17 D10 D12 D11
 Nimzo Indian (49) 
    E32 E20 E21 E36 E54
 French Defense (38) 
    C11 C00 C02 C10 C03
 Semi-Slav (34) 
    D43 D45 D47 D44
With the Black pieces:
 Sicilian (165) 
    B33 B30 B22 B90 B77
 Ruy Lopez (115) 
    C67 C95 C65 C69 C78
 Queen's Indian (73) 
    E15 E12 E17 E13 E18
 Nimzo Indian (42) 
    E34 E32 E21 E20 E55
 Slav (38) 
    D12 D15 D17 D11 D10
 Ruy Lopez, Closed (36) 
    C95 C91 C88 C96 C90
Repertoire Explorer

NOTABLE GAMES: [what is this?]
   Carlsen vs S Ernst, 2004 1-0
   Carlsen vs H Harestad, 2003 1-0
   J L Hammer vs Carlsen, 2003 0-1
   Kramnik vs Carlsen, 2008 0-1
   Anand vs Carlsen, 2013 0-1
   Carlsen vs Karjakin, 2013 1-0
   Carlsen vs Anand, 2012 1-0
   Carlsen vs Gelfand, 2013 1-0
   Carlsen vs A Groenn, 2005 1-0
   Carlsen vs Aronian, 2008 1-0

WORLD CHAMPIONSHIPS: [what is this?]
   FIDE World Championship Knockout Tournament (2004)
   Anand - Carlsen World Championship (2013)

NOTABLE TOURNAMENTS: [what is this?]
   Gausdal Chess Classics (2007)
   Arctic Chess Challenge (2007)
   Tata Steel (2013)
   Pearl Spring Chess Tournament (2009)
   King's Tournament (2010)
   Norwegian Championship (2005)
   Norwegian Championship (2006)
   Corus Wijk aan Zee Group B (2006)
   Norwegian Championship (2004)
   Midnight Sun Chess Challenge (2006)
   Amber Tournament (Blindfold) (2009)
   Amber Tournament (Blindfold) (2010)
   World Chess Cup (2007)
   FIDE World Cup (2005)
   XXII Reykjavik Open (2006)

GAME COLLECTIONS: [what is this?]
   MAGNUS CARLSEN'S BEST GAMES by notyetagm
   Fighting Chess with Magnus Carlsen by jakaiden
   Wonderboy - Magnus Carlsen, 2000-2004 by Resignation Trap
   Match Carlsen! by amadeus
   The Carlsen Chronicles by MoonlitKnight
   Guess-the-Move Chess: 2000-2010 (Part 1) by Anatoly21
   Magnus Carlsen by akatombo
   Mozart of chess by zarg
   magnus carlsen .. by sk.sen
   Carlsen Favorites by chocobonbon
   Carlsen's winning miniatures by alexmagnus
   Guess-the-Move Chess: 2000-2010 (Part 2) by Anatoly21
   Magnus Carlsens Meisterwerke by tmh13
   Carlsen in world championships:2005-07 by alexmagnus

Search Sacrifice Explorer for Magnus Carlsen
Search Google for Magnus Carlsen
FIDE player card for Magnus Carlsen


MAGNUS CARLSEN
(born Nov-30-1990, 23 years old) Norway

[what is this?]
Magnus Carlsen is the 16th undisputed World Champion, winning the crown from Viswanathan Anand in November 2013.

Landmarks

FM (2002); IM (2003); GM (2004); vice-World U12 World Champion (2002); Norwegian Champion (2006); Candidate (2007 & 2013); World Champion (2013); World Rapid Champion (2014) and World Blitz Champion (2009 & 2014).

Carlsen has been the world's top ranked player since January 2010, apart from six months between November 2010 and June 2011 when he was #2, and possesses the highest standard FIDE rating ever posted, as well as the highest ever live rating.

Background:

He was born in Tønsberg, Vestfold. His parents are Sigrun Øen and Henrik Carlsen, both of whom are engineers. His father taught him chess at the age of eight after which he soon played his first tournament, a junior (Miniputt) Norwegian championship. He was coached by seven-time Norwegian Champion Simen Agdestein and by Curt Hansen. He won the title of International Master in 2003 at the age of 12 years 7 months and 25 days. In 2004, after having gained over 300 rating points in little over a year, he became the second-youngest grandmaster in chess history at the time, behind only Sergey Karjakin, at the age of 13 years 4 months and 27 days. Parimarjan Negi later pipped his record by five days to become the second youngest grandmaster ever.

Championships:

<Age>: Carlsen won the Norwegian U11 Championship in 2000 and the U10 Nordic Championship in 2001. In 2002, he placed =1st in the Open Norwegian Junior Championship with 5.5/7, but easily won the same event the following year with 6/6. Carlsen started with 4/4 at the 2002 U12 European Championship but faded to finish sixth. In the 2002 U12 World Championship a few weeks later, Carlsen was sole leader coming into the last round, but was held to a draw by David Howell, enabling Ian Nepomniachtchi to equal his score and to win on tiebreak. He placed =3rd at the 2003 U14 European Championship, half a point behind Sergei Zhigalko and Tornike Sanikidze, a short time later placing =9th with 7.5/11 at the World U14 Championship in Halkidiki.

<National and Continental>: A couple of weeks after being eliminated from the FIDE World Championship Knockout Tournament (2004) (see below), he placed =1st in the 2004 Norwegian Championship. However, after a two-game play-off match with co-leader and until then, six-time Norwegian champion, Berge Ostenstad was drawn, Østenstad was declared winner on tiebreak. In the 2005 Norwegian Chess Championship, Carlsen again finished in a shared first place, this time with his mentor Simen Agdestein. A rapid game playoff between them resulted in Agdestein’s victory by 3.5-2.5 (+2 -1 =3). Carlsen finally won the Norwegian Championship in 2006, after defeating Simen Agdestein in a tie-break match.

Carlsen’s first and and so far only participation in the continental championship provided a solid 22-point boost to his rating when he scored 8/13 in the 6th European Individual Championship (2005).

<World>: Carlsen qualified for the FIDE World Championship Knockout Tournament (2004), but was eliminated in the first round tiebreaker by Levon Aronian. His hopes to become a contender for the World Championship in the future took a big step forward by placing tenth at the FIDE World Cup (2005), becoming the youngest player ever to qualify for the Candidates. In his first Candidates match in Elista in May, he drew 3-3 in the six slow games of the Candidates Match: Aronian - Carlsen (2007) before losing in rapid-play tie-breaks. He reached the final four in the World Chess Cup (2007) before being defeated in the semi-finals by the eventual winner, Gata Kamsky. Carlsen's final placing in the 2007 World Cup qualified him for participation in the FIDE Grand Prix for 2008-09. Soon afterwards he tied for first place in the Baku Grand Prix (2008), the first round of FIDE's inaugural Grand Prix series. Carlsen later withdrew from the Grand Prix cycle despite his excellent result in Baku, complaining about "dramatic changes to ... regulations." and that “…changing the rules dramatically in the middle of a cycle is simply unacceptable.”

On the basis of his rating, Carlsen qualified for the Candidates Tournament that would determine the challenger to World Champion Viswanathan Anand in 2012. In November 2010, however, Carlsen announced he was withdrawing from the Candidates tournament. Carlsen described the 2008–12 cycle as not "...sufficiently modern and fair", and added that "Reigning champion privileges, the long (five year) span of the cycle, changes made during the cycle resulting in a new format (Candidates) that no World Champion has had to go through since Kasparov, puzzling ranking criteria as well as the shallow ceaseless match-after-match concept are all less than satisfactory in my opinion." Carlsen qualified for the World Championship Candidates (2013) that was played in London, again on the basis of his rating. He placed =1st with Vladimir Kramnik on 8.5/14 after both players lost their last round games, but as the first tiebreaker (score against each other in the tournament which was 1-1) failed to break the tie, he won on the second tiebreak which stipulated that the player with the greater number of wins takes first place; he had scored five wins to Kramnik's four. During the tournament, Carlsen set a new live rating record of 2878.9 after he defeated Gelfand in round 10.

In November 2013, Carlsen won the Anand - Carlsen World Championship (2013) that was staged in Chennai. The first four games were drawn before Carlsen won the fifth and sixth games. The seventh and eighth games were drawn, with Carlsen then winning the ninth game and drawing the tenth and last game to win by 6.5-3.5 (+3 =7). He will defend his title in November 2014 in a rematch against Viswanathan Anand, who won the World Chess Championship Candidates (2014) that was held in March 2014.

Classical Tournaments:

Carlsen earned his first IM norm in January 2003 at the Gausdal Troll Masters when he scored 7/10. His second IM norm came in June 2003 at the Salongernas IM-tournament in Stockholm where he scored 6/9 and his third IM norm came in the following month at the 2003 Politiken Cup in Copenhagen where he scored 8/11. In early 2004, Carlsen made a major international impact when he won Corus C with 10.5/13, easily winning his first grandmaster norm and earning his entry to the Corus B in 2005. Carlsen obtained his second grandmaster norm in the 3rd Aeroflot Festival (2004) in February and his third grandmaster norm at the sixth 6th Dubai Open (2004), held between 18th and 28th April.

Soon afterwards he placed 3rd at the 12th Sigeman & Co Chess Tournament (2004) followed later that month with a solid =3rd place at the Politiken Cup 2004, a half point behind the leaders Darmen Sadvakasov and compatriot Leif Erlend Johannessen. In October 2005, he won the Gausdal Bygger'n Masters in Norway with 8/9 ahead of 9 other grandmasters. He continued to improve in 2006, tying Alexander Motylev for first place in Corus Wijk aan Zee Group B (2006). After several more strong performances during the year, including 6.5/9 at the XXII Reykjavik Open (2006), =2nd at Bosna Sarajevo Tournament (2006), =2nd behind Sergei Shipov at the Midnight Sun Challenge at Breivika videregaende skole in Norway, =2nd at Biel Int'l Festival (2006) (after beating the winner Alexander Morozevich twice), first at the Gausdal Classics GM-A and a joint second-place finish at Linares - Morelia (2007), he crossed the 2700-mark, the youngest player ever to do so. A relatively poor result at Dortmund (2007) (3/7) was followed by a win at Biel Chess Festival (2007) (His score was equaled by Alexander Onischuk and so they played a tie-breaker match to determine the winner. After drawing two rapid and two blitz games, Carlsen won the Armageddon game) and a par for rating =2nd at the Arctic Chess Challenge (2007) where he scored 7/9, a half point behind the leader Alexander Moiseenko, and 3rd at the Tal Memorial (2007) in November 2007.

In 2008 Carlsen was the joint winner of Corus (2008) A-Group together with Levon Aronian, and placed second in Morelia-Linares (2008) behind Anand. He won clear first place at Aerosvit (2008) with a dominant 8/11 score. His "disappointing" third placement at 41st Biel International Chess Festival (2008) with 6/10, a half point behind joint winners Leinier Dominguez Perez and Evgeny Alekseev, was nevertheless still a 2740 performance, whilst his equal second in the Bilbao Grand Slam Chess Final (2008) with 5.0/10 was a 2768 performance. His relatively meagre 7/13 at Corus (2009) was followed by equal second placement behind Kramnik at Dortmund (2009) with a 2773 performance and 2nd with 5/9 at the M-Tel Masters (2009). The arrival of Garry Kasparov in 2009 as his coach enabled Carlsen's finest tournament performance to date, and one of the best tournament results in the history of chess. Carlsen eclipsed a stellar field consisting of Topalov, Peter Leko, Dmitry Jakovenko, Teimour Radjabov and Wang Yue to win clear first prize with 8/10 at the category XXI Pearl Spring Chess Tournament (2009). Carlsen's performance rating for the tournament was a record 3002 and lifted his FIDE rating in the November 2009 list to 2801, which made him only the fifth player to surpass 2800, and easily the youngest. After a slow start, Carlsen placed equal second with Vassily Ivanchuk behind Vladimir Kramnik in the Category XXI Tal Memorial (2009), which fielded ten of the world's top thirteen rated players. He saw out 2009 with a win at the London Chess Classic (2009), a point ahead of Kramnik, a result which pushed him to the top of the world ratings in January 2010.

In 2010, Carlsen's success continued, winning Corus (2010) outright with 8.5/13, half a point ahead of joint second place finishers Kramnik and Alexey Shirov. In June, he won the category XXI King's Tournament (2010) in Bazna in Romania by a clear two points with 7.5/10 and a 2918 performance. Following mediocre performances at the 2010 Olympiad and the category XXII Bilbao Masters (2010), Carlsen returned to form by winning the category XXI Nanjing Pearl Spring Tournament (2010) outright with 7/10 (+4 -0 =6) and a 2901 rating performance, a full point ahead of World Champion Anand who took outright second with 6/10, and finishing the year by winning the London Chess Classic (2010) for the second time in succession. After a slow start in the Tata Steel (2011) super tournament, Carlsen finished =3rd with Levon Aronian behind Hikaru Nakamura and Anand with 8/13 and a performance rating of 2821. He followed up in June by winning the Bazna King's Tournament (2011) on tiebreak ahead of Karjakin, both finishing with 6.5/10, and by winning Biel Chess Festival (2011) in July with a round to spare and with a final score of 7/10 (TPR 2835). After another characteristically slow start, Carlsen placed =1st with Ivanchuk at the 4th Bilbao Masters (2011) with 15 points under the Bilbao scoring system (+3 -1 =6) and a 2842 performance rating, ultimately winning the tournament in a blitz tiebreaker. Then in November 2011, Carlsen won the Tal Memorial (2011) on tiebreak with 5.5/9 (+2 =7 -0 and a TPR of 2850) over Aronian. Carlsen finished 2011 with 3rd place at the category 20 London Chess Classic (2011) behind Kramnik and Nakamura, scoring +3 =5 (TPR of 2879). 2012 started with =2nd (+4 -1 =8; TPR 2830) behind Aronian and alongside Radjabov and Fabiano Caruana at the Category 21 Tata Steel (2012). He won the category 22 Tal Memorial (2012) outright with 5.5/9 (+2 =7) and a TPR of 2849. The month after his strong results in the World Blitz he finished outright second behind Wang Hao in the Grandmaster Tournament of the Biel Chess Festival (2012). In October 2012, Carlsen repeated his 2011 feat at Bilbao by winning the Bilbao Masters (2012) in a tiebreaker, this time against Caruana. He finished up 2012 by winning the London Chess Classic (2012), the third time he has done so, with a score of 6.5/8 (+5 =3 -0) and a TPR of 2994 (only fractionally below his record effort at Pearl Springs in 2009). London 2012 was also made historic for the fact that Carlsen's result lifted his January 2013 rating to a new record, exceeding Kasparov's record 2851 by 10 points.

Building on his achievements of 2012, Carlsen won the category 20 Tata Steel (2013) tournament with a round to spare, his final score being 10/13. He also set a new live rating record of 2874 after his round 12 win over Nakamura, although this was superseded at the Candidates in March. In May 2013 he played in the category 21 Norway Chess Tournament (2013) held in the Stavanger Region of Norway and came 2nd with 5.5/9, half a point behind the winner Sergey Karjakin; in the preliminary Norway Chess Tournament (Blitz) (2013) held to determine the draw, he came 2nd with 6/9 behind Karjakin, thereby earning 5 games as White out of the 9 to be played. In June he again came outright 2nd, this time at the category 22 Tal Memorial (2013), half a point behind the winner Boris Gelfand. His last hit out before the World Championship match against Anand in November 2013 was the category 22 double round robin Sinquefield Cup (2013), which he won outright with 4.5/6 (+3 =3; TPR of 2966).

Carlsen's first tournament as World Champion was the Zurich Chess Challenge (2014), the first ever category 23 tournament (average rating 2801). He came from behind to take equal first with Aronian in the Zurich Chess Challenge (Blitz) (2014), which determined the colors in the main event (Carlsen has 4 whites and 1 black). By round 4 of the standard time event, he extended his live rating to 2882.6, breaking the record he established in round 3. His round 5 draw with Anand enabled him to finish the standard time event in first place, 2 scoring points ahead of Aronian. He needed 3.5/5 in the Zurich Chess Challenge (Rapid) (2014) played on the final day to guarantee his win in the event, however his 2/5 result was sufficient to win the combined event by one point under the scoring system used. His next event was the category 22 Gashimov Memorial (2014), a new event in honor of the late Azeri GM Vugar Gashimov, which he won outright with a score of 6.5/10, defeating Fabiano Caruana, his rival for first prize, in the last round. Although he was the only undefeated player at the Norway Chess Tournament (2014), he won insufficient games to win the event, which was successfully defended by last year's winner, Sergei Karjakin. In August 2014, he played in the category 23 (only the second such strength event) Sinquefield Cup (2014) and came outright second with 5.5/10, 3 points behind Caruana, the runaway leader of the tournament.

Next event

His next event will be to defend his World Championship title against Anand in November 2014. The venue will be Sochi in Russia.

Rapid:

Carlsen won the Glitnir Blitz Tournament in 2006 in Iceland. In September 2006 Carlsen placed 8th out of 16 participants at the World Blitz Championship (2006) in Rishon LeZion, Israel. In the blitz tournament associated with the Tal Memorial 2006, namely the Tal Blitz Cup, Carlsen scored 17½/34 points and placed 9th in a group of 18 participants. In March 2007, Carlsen played for the first time in the Melody Amber blind and rapid chess tournament in Monte Carlo. In the 11 rounds of the 16th Amber Tournament (Blindfold) (2007), he achieved eight draws and three losses (placing =9th) then scored three wins, seven draws and one loss in the 16th Amber Tournament (Rapid) (2007) (=2nd), for an overall 8th place in the combined tournament. In March 2008, Carlsen played for the second time in the Melody Amber blind and rapid chess tournament, which was held in Nice for the first time. Carlsen achieved four wins, four draws and two losses in the Amber Tournament (Blindfold) (2008), and three wins, two losses, and six draws in the Amber Tournament (Blindfold) (2008), resulting in a shared second place in the overall tournament.

In the Chess Classic Mainz (2008), Carlsen finished in second place after losing the final to defending champion Anand 3:1 (two losses, two draws). 2009 saw Carlsen score equal first in the Amber Tournament (Blindfold) (2009) with 7/11 alongside Kramnik and Aronian, and equal second with Veselin Topalov at M-Tel Masters (2009) behind Shirov with a 2822 performance. He also won the XXII Magistral Ciudad de Leon (2009), a rapid knockout tournament, ahead of Morozevich, Ivanchuk, and Wang Yue. Just a few days after his 2nd placement at the Tal Memorial (2009), he won the World Blitz Championship (2009) with 31/42, a full three points ahead of runner-up Anand. He shared first place at the 2010 Amber Rapid and Blindfold Tournament with Ivanchuk; scoring 6½ points in the blindfold and 8 points in the rapid, Carlsen accumulated 14½ from a possible 22 points. After a slow start in the Arctic Securities Chess Stars (2010) rapid tournament, he continued his success by defeating Anand in the two-game playoff for gold. In the World Blitz Championship (2010), held in Moscow on 16–18 November, Carlsen attempted to defend his 2009 title. With a score of 23½/38, he finished in third place behind Radjabov and the winner Aronian. After the tournament, Carlsen played a private 40-game blitz match against Hikaru Nakamura, winning with a score of 23½–16½. A phenomenal 9.5/11, 2.5 points clear of the field, in 20th Amber Tournament (Rapid) (2011) was insufficient for him to win the overall contest, as his results in the 20th Amber Tournament (Blindfold) (2011) were poor, resulting in a 2nd overall to 2008 and 2009 overall winner Aronian. In July 2012 he came clear 2nd in the World Rapid Championship (2012) behind Karjakin with 10.5/15, and clear 2nd in the World Blitz Championship (2012) with 19.5/30, half a point behind Alexander Grischuk.

In June 2014, he realized his ambition to be the triple champion (of standard, rapid and blitz chess) when he won the FIDE World Rapid Championship (2014) with 11/15, half a point ahead of runner-up Caruana, and the FIDE World Blitz Championship (2014) with 17/21, one point clear of Nepomniachtchi and Nakamura.

Matches:

The DSB Bank match between Loek van Wely and Magnus Carlsen took place 28th April - 1st May 2006. The four game classical time limit match was tied 2-2. Carlsen won the blitz portion of the match 3.5-0.5. He won a rapid match against Peter Leko held in Miskolc, Hungary, scoring 5:3 (+2 =6). Carlsen played in a curtain raiser to the Norwegian Championship, winning the Carlsen - Predojevic Rapid Match (2013) by 2.5-1.5 (+1 =3); the match was organized by the "Nansen Center for Peace and Dialogue" to celebrate the long-standing relationship between Lillehammer and Sarajevo. (1)

Team:

<Olympiad>: Carlsen represented Norway on board 1 in the 36th Olympiad (2004), the 37th Chess Olympiad (2006), the Olympiad (2008), the Chess Olympiad (2010) and in the Chess Olympiad (2014). His best result was in the 2006 Olympiad, where he scored 6 points from 8 games and came 5th for board 1.

<National> He played board 1 for Norway at the European Team Chess Championships (2007) and won an individual silver medal.

<Club> Carlsen played four seasons in the European Club Cup. In 2001 and 2003 he played for Asker Norway on board 6 and board 1 (after he had gained his FM title) respectively, while his father Henrik was reserve on both occasions. In 2007 he played board 3 for OS Baden Baden, and in 2008 he played top board for MIKA Yerevan. His total game result from these 4 seasons was 15.5/27 (+11 -7 =9). He also played in the Norwegian Team Championship in 2002, 2003, 2005 and 2006, in the Bundesliga in the 2004-05, 2006-07, 2007/08, 2008-09 seasons, and in the Dutch Team Championship 2007.

<Other> In August 2006, he played in the NH Hotels event featuring the older Experience Team vs Youth team (easily won by the Youth team 28–22), and was equal top scorer with Alexander Beliavsky with 6.5/10.

Rating:

The highest official rating achieved by Carlsen to date was 2882 in May 2014. His highest live rating was 2889.2 on 21 April 2014.

Carlsen's 1 September 2014 FIDE ratings are:

<Standard>: 2870, making him the top ranked player in the world. By the end of the September 2014 rating period, he will have been world number one for a total of 51 months. He holds the record for the longest period as the world's top ranked Junior (U20) - 36 months - from 1 January 2008 until 31 December 2010. He was also both world number one junior and world number one player for the first 10 months of 2010. Furthermore, he holds the record for the highest rating acquired by any player aged 13, and 15 through to 23 inclusive.

<Rapid>: 2855 (world #2); and

<Blitz>: 2948 (world #1).

Other:

Carlsen won the Chess Oscars for 2009, 2010, and 2011, and he was also awarded Norway's annual Peer Gynt Prize for 2011 for being "a person or institution that has achieved distinction in society". (2) After he won the World Championship he was awarded Norway's "Name of the Year" award for 2013. (3) He has two sisters, Ellen Oen Carlsen and Ingrid Oen Carlsen. Carlsen helped Anand prepare for the World Chess Championships in 2007 and 2008 and 2010. Carlsen has modeled for G-Star Raw, starting with its Autumn/Winter 2010 advertising campaign.

General Sources:

Carlsen's FIDE player card; Wikipedia article: Magnus Carlsen; live rating: http://www.2700chess.com/; official website: http://www.magnuscarlsen.com/; blogs: http://www.arcticsec.no/index.php?b... (English language); http://simonsenlaw.no/ (Norwegian language); World Championship Index: http://www.mark-weeks.com/chess/wcc...; and Olimpbase, the Encyclopedia of Team Chess: http://www.olimpbase.org/

Footnotes

(1) http://www.peace.no/index.php?optio...; (2) http://www.newsinenglish.no/2011/03...; (3) http://www.nrk.no/sport/videoklipp/...


 page 1 of 67; games 1-25 of 1,668  PGN Download
Game  ResultMoves Year Event/LocaleOpening
1. Toan Thanh Pham vs Carlsen 1-032 2000 Det åpne NMB70 Sicilian, Dragon Variation
2. A Flaata vs Carlsen 1-024 2000 Stjernen Grand PrixA07 King's Indian Attack
3. Carlsen vs I Cordts 0-130 2000 Bayern-chI Bank Hofmann 4thA31 English, Symmetrical, Benoni Formation
4. Carlsen vs H Sannes 1-060 2000 Det åpne NMA27 English, Three Knights System
5. G Kaiser vs Carlsen 0-136 2000 Bayern-chI Bank Hofmann 4thB08 Pirc, Classical
6. Carlsen vs J Svindahl 0-142 2000 Det åpne NMA36 English
7. Carlsen vs I Cordts 0-130 2000 Bayern-chI Bank Hofmann 4thA31 English, Symmetrical, Benoni Formation
8. M Svendsen vs Carlsen 1-039 2000 Det åpne NMC02 French, Advance
9. Carlsen vs P Brantzeg 0-152 2000 ASKOs Pinseturnering, Gruppe BC18 French, Winawer
10. T Christenson vs Carlsen 0-146 2000 Det åpne NMB70 Sicilian, Dragon Variation
11. H Bartels vs Carlsen ½-½48 2000 Bayern-chI Bank Hofmann 4thC59 Two Knights
12. Carlsen vs T Nielsen 0-145 2000 Det åpne NMA10 English
13. Carlsen vs T Solstad ½-½21 2000 Det åpne NME04 Catalan, Open, 5.Nf3
14. Carlsen vs L Olzem ½-½36 2000 Bayern-chI Bank Hofmann 4thD00 Queen's Pawn Game
15. K Ovesen vs Carlsen 1-038 2000 Det åpne NMA46 Queen's Pawn Game
16. Carlsen vs E Blomqvist 1-021 2001 Nordic-chTC78 Ruy Lopez
17. M Kouvatsou vs Carlsen  ½-½37 2001 ECCC55 Two Knights Defense
18. R T Andersen vs Carlsen  0-132 2001 Astlandserien 01/02 div. 1, SOSS - AskerE53 Nimzo-Indian, 4.e3
19. Carlsen vs S Rukovci ½-½6 2001 Open NOR-chA21 English
20. K Ribbegren vs Carlsen 1-028 2001 Astlandserien 01/02 div. 1, Asker - ASKO IE30 Nimzo-Indian, Leningrad
21. Carlsen vs A Caoili ½-½34 2001 Classics IMAB43 Sicilian, Kan, 5.Nc3
22. Carlsen vs D Stojanovski  ½-½20 2001 ECCA34 English, Symmetrical
23. O Hagberg vs Carlsen 0-138 2001 Open NOR-chC42 Petrov Defense
24. H Sorensen vs Carlsen 1-050 2001 Troll MastersD48 Queen's Gambit Declined Semi-Slav, Meran
25. Carlsen vs E Vegh 0-134 2001 Classics IMAB40 Sicilian
 page 1 of 67; games 1-25 of 1,668  PGN Download
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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2566 OF 3025 ·  Later Kibitzing>
Feb-09-12  frogbert: <if you include factors like <nimh> suggests, "chess abilities", "playing conditions", etc, these are all subjective>

i think you have misunderstood nimh here; what, if not chess abilities, impacts the accuracy of your play? obviously "chess abilities" is the key feature being measured. your basic chess knowledge and abilities don't change very quickly, but the quality of your play ("accuracy") will still be impacted short-term by factors such as tiredness and rate of play (i.e. "thinking time").

obviously nimh doesn't suggest that you should try to assign/estimate some level of "chess ability" to the players and factor that into a measurement of accuracy.

Feb-09-12  frogbert: <This is evident to the fact that even though he is the most accurate computer-wise, he is not on top of chessmetrics (elo-wise),>

i'm not sure i understand what you think that fact says something about. ratings (like elo-systems or chessmetrics) don't claim to measure anything absolute.

if i were in a closed pool with only rank amateurs (non-club players) that basically know nothing but the basic rules of chess and i then played 200 games against these players, <sonas' chessmetrics rating for me in that pool would've made me the highest rated player in history>, well above kasparov and fischer (based on how they did in their respective player pools). and totally unrelated to any "accuracy" measured by engine analysis.

chess ratings is a relative measure. it only says something about your abilities relative to the other players in your pool. the most current chessmetrics ratings is a weighted performance measure over 48 months. hence, in theory ratings for two players 5 years apart don't need to have <anything relevant> in common - and they clearly have <no game results> shared between them, for instance.

Feb-09-12  MORPHYEUS: <but your example only <strengthened> mine! pronstad is a much stronger player than the opponent i had in the example i gave. the latter was rated 600+ points below me, while pronstad was at the time a mere 100 points below, and on the given day he played better than me, which is no sensation at all with a 100 point difference at our level.>

You have to be consistent <frogbert>. When you are arguing chess ratings you are more scientific, but not today?

You can't based assumption in one or two games. You of all people know that (again).

In the first game you scored 96.4% and the second 44%.

What is your average then?

Feb-09-12  MORPHYEUS: <both games illustrate the same thing: weaker opponents make it easier to play "correctly" and stronger opponents make it harder>

You have not done any proper study to back your claim, except for that one lousy 27 move game. Why are you so unscientific today? Now, i'm surprised. This is so uncharacteristic of you.

If you were playing against an opponent below 600 points of your rating that is already past the 400 points parameter of the elo rating system.

Even so, you're assuming that you will make the most computer agreeing moves if you play a weaker opponent. By simple logic, the rules and nuances of the game have not changed one bit when you play a weaker opponent. If you play a weaker opponent and you're winning but don't find the best move, for example best is 9.00 and you found only the move that evals to 6.5, you still get penalized by 2.5.

How does that make you play more perfect chess?

Feb-09-12  MORPHYEUS: <i think you have misunderstood nimh here; what, if not chess abilities, impacts the accuracy of your play? obviously "chess abilities" is the key feature being measured. your basic chess knowledge and abilities don't change very quickly, but the quality of your play ("accuracy") will still be impacted short-term by factors such as tiredness and rate of play (i.e. "thinking time").>

The problem is with <nimh> not me. Then why did he include that in his list?

Feb-09-12  MORPHYEUS: <frogbert: <This is evident to the fact that even though he is the most accurate computer-wise, he is not on top of chessmetrics (elo-wise),> i'm not sure i understand what you think that fact says something about. ratings (like elo-systems or chessmetrics) don't claim to measure anything absolute.

if i were in a closed pool with only rank amateurs (non-club players) that basically know nothing but the basic rules of chess and i then played 200 games against these players, <sonas' chessmetrics rating for me in that pool would've made me the highest rated player in history>, well above kasparov and fischer (based on how they did in their respective player pools). and totally unrelated to any "accuracy" measured by engine analysis.>

You are correct when you said you didn't understand what i said.

I simply meant the two (chess rating and accuracy) should be combined when describing or comparing players.

Is was that hard to understand?

Feb-09-12  MORPHYEUS: <chess ratings is a relative measure. it only says something about your abilities relative to the other players in your pool. the most current chessmetrics ratings is a weighted performance measure over 48 months. hence, in theory ratings for two players 5 years apart don't need to have <anything relevant> in common - and they clearly have <no game results> shared between them, for instance.>

Tell that to Jeff Sonas. I'm talking about his chessmetrics here.

Feb-09-12  MORPHYEUS: <pronstad is a much stronger player than the opponent i had in the example i gave. the latter was rated 600+ points below me, while pronstad was at the time a mere 100 points below, and on the given day he played better than me, which is no sensation at all with a 100 point difference at our level.>

Funny, <frogbert> is only scientific when he is arguing his side.

As a statistician (or at least that's his hobby), he knows that data tends to be anomalous at both ends of the spectrum.

In case of the elo system the right side of the spectrum is 400+.

By his logic, he can provide an example where he played against a group of 2- year olds, and his average accuracy was 90%. The same example can be used on the area of his expertise, the elo system. <frogbert> plays with a group of 2-year olds and his elo shoots up the roof. But of course, he's careful not to point that out.

<frogbert's> Conclusion? Accuracy of moves cannot be used to measure strength of a player. (In fairness though, he does not make any claims for the elo system, either).

That's why the study is being made on master level only, and once Runde played Pronstad, a player 109 points below him, his stats quickly went back to a more normal level.

Feb-09-12  MORPHYEUS: <nimh: Throughout past several years I have analyzed more than 1500 games, but never encountered an engine-perfect game. And now Morphyeus demonstrates one of Carlsen's rapid games was engine-perfect. Just WOW! I'm amazed!>

I'm afraid that only nerds like <nimh> and me appreciates the implications of this. :)

<nimh> you have analyzed 1500 games. Do you have a graph that shows direct relationship between elo and accuracy?

For example:

2700+ 90%
2650 86%
2600 82%

but your data i think will be in mean average error instead of percentage.

Feb-10-12  frogbert: one clear, safe win is as perfect as another, morph. +9 or +6.5 is the same - a method that adds an error of 2.5 for choosing one very clear win over another doesn't measure anything meaningful.

also, you ask what the my "average accuracy" of those two games was and wonder why i'm "so unscientific". why is the average relevant for my purposes? i'm not claiming anything about my typical accuracy, i only claim that i only can score very highly (elite level) on your accuracy metric when the opponent poses me almost no real challenges.

of course, to prove that rigorously it takes quite a lot more, but even that one game is proof that a 96,4% accuracy doesn't indicate elite level play. no 2600+ player would ever play the two weak moves i played on moves 11 and 12. they were a complete give-away: look, this game is played by an amateur!

Feb-10-12  MORPHYEUS: <but even that one game is proof that a 96,4% accuracy doesn't indicate elite level play.>

RIGHT! It's a fluke. If you can do that on a regular basis, you'd be elite and won't be posting in CG that much. hehe.

Feb-10-12
Premium Chessgames Member
  alexmagnus: <a method that adds an error of 2.5 for choosing one very clear win over another doesn't measure anything meaningful.>

Depends. Let's go to the very extreme version of this claim. You have mate in 1. You miss it, and go into an endgame which is a tablebase win, mate in some 30-35 moves which you know how to execute (which is not a given thing btw). Wasn't it an error, despite both moves (immediate mate and simplification to the endgame) being clear wins?

Feb-10-12  MORPHYEUS: <one clear, safe win is as perfect as another, morph. +9 or +6.5 is the same - a method that adds an error of 2.5 for choosing one very clear win over another doesn't measure anything meaningful.>

Ok, i actually have fuzzy logic in place for dealing with large winning/losing evals, so that the error is reduced.

But the point i want to make is that you will still get deductions for not selecting the best moves in a winning position and if these accumulate it will be substantial.

Feb-10-12
Premium Chessgames Member
  alexmagnus: Btw, another version for <frog>'s two wins claim. You have a very weak opponent who doesn't resign. You are a rook and a knight up. Out of inconcentration, you blunder away the rook. With a knight up, the position is still clearly won. Was it not a blunder?
Feb-10-12  MORPHYEUS: <also, you ask what the my "average accuracy" of those two games was and wonder why i'm "so unscientific". why is the average relevant for my purposes?>

wahaha. Don't you use averages in your rating calculations?? Is not "elo rating" an "average" by itself?

That's why i say you're being unscientific when you say that one game is proof. hehe

Feb-10-12  MORPHYEUS: <alexmagnus: Btw, another version for <frog>'s two wins claim. You have a very weak opponent who doesn't resign. You are a rook and a knight up. Out of inconcentration, you blunder away the rook. With a knight up, the position is still clearly won. Was it not a blunder?>

That is actually a very good point, alex.

Feb-10-12
Premium Chessgames Member
  alexmagnus: Accuracy as defined by <morpheyus>, taken over a big sample of games, may well be a good strength indicator (and over one game - in that one game. Yes, against a weaker opponent it's easier to find perfect moves, but that doesn't make the moves less perfect, a stronger player would make same moves :D).
Feb-10-12  frogbert: <Don't you use averages in your rating calculations??>

i still fail to see the relevancy.

<That's why i say you're being unscientific when you say that one game is proof.>

the only thing i claimed it proved, was that 96,4% accuracy according to your metrics doesn't indicate elite level play. i don't need more than that single game example to illustrate that, morph. it's not "unscientific" at all, it's just not a quantitative, empirical "proof" - it's actually better: the game clearly contains a couple of <amateur mistakes>, yet scores 96,4% on your metric. qed.

you don't need to find a 1000 black swans to falsify that all swans are white. i've falsified that 96,4% "accuracy" implies elite level play.

---

my other point about that game is how it <illustrates> how a weak opponent can make it easy to be accurate. i don't claim it provides any proof of that theory, and i've already said so <explicitly> three times, morph. isn't it about time you acknowledge that? giving an illustration of something is <not> being unscientific - where did you get that strange idea?

Feb-10-12  MORPHYEUS: <frogbert>, you have one good game. You haven't proved that you're elite.

When Sjugirov beat Carlsen did that make him elite?

To gauge the accuracy of a player i will have to use a larger number of games, maybe 30 games or more.

If we get your average accuracy over 30 games, i'm sure we will get a figure relevant to your elo.

Isn't that approximate to what you do in calculating elo ratings?

Feb-10-12  MORPHYEUS: <my other point about that game is how it <illustrates> how a weak opponent can make it easy to be accurate. i don't claim it provides any proof of that theory>

This statement contradicts itself.

Feb-10-12  frogbert: <You have mate in 1. You miss it, and go into an endgame which is a tablebase win, mate in some 30-35 moves which you know how to execute>

actually, my point would make the opposite assumption, alexmagnus - that the player chooses an <easier, more practical> way to win, not a much harder one. but playing a mate in 3 instead of a mate in 2 is another example of an irrelevant distinction, in my opinion; if you're in time trouble and see and play a mate in 3, that's perfect. or repeating a position once to make a time control, only then to find and play a mate in 5 is also perfect, imho.

another example: there might be a flashy, tactical way to win a rook in a position, but it requires exact calculation and the lines branch with several side variations. instead you can trade down to a pawn ending one pawn up that is trivially won, but which only scores maybe +1,5 at ply 20 due to the engine's short horizon (unlike me, it doesn't see that the pawn ending is trivially won and effectively is + "a million").

for an illustration, you might consider the end of the single classical game i've played against carlsen, present in this database. it would be ridiculous to claim that carlsen's trade-down at the end of that game represents any "inaccuracy" even if an engine might think so. in fact, when he traded down to a pawn ending, i immediately resigned. hence, it was a very effective way to force resignation. :o)

Feb-10-12  MORPHYEUS: <frogbert> you said it yourself, <elo> is not infallible, so why are you insisting that this method (what's the best name for it?) be perfect.

No statistics is ever perfect just like the elo, but given enough sample it will be a good measure of chess playing ability.

Feb-10-12  frogbert: have a look:


click for larger view

at the end of a series of simplifying exchanges carlsen here played Rxe7 and i recaptured and resigned at once.

at depth 20 we have
Rxe7 = +1.9
Ke2 = +4.8

an engine doesn't even have Rxe7 in its top 20, but calling it out as an "inaccuracy" or even worse a "grave mistake" is absolute hogwash. :o)

Feb-10-12  frogbert: <you said it yourself, <elo> is not infallible>

that wasn't what i said. i said that elo doesn't measure anything absolute.

<you have one good game. You haven't proved that you're elite.>

of course not. i haven't claimed anything along those lines - i claimed that i proved something about the implications (or lack there-of) of a game scoring 96,4% in your metric.

<This statement contradicts itself.>

no, it doesn't. :o)

Feb-10-12  frogbert: <i've falsified that 96,4% "accuracy" implies elite level play.>

to make it abundantly clear:

i've falsified that 96,4% "accuracy" <in a specific game> implies elite level play in that <specific game>.

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