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TOURNAMENT STANDINGS
Dortmund Sparkassen Tournament
Fabiano Caruana5.5/7(+5 -1 =1)[games]
Wesley So4/7(+3 -2 =2)[games]
Liviu-Dieter Nisipeanu4/7(+2 -1 =4)[games]
Vladimir Kramnik3.5/7(+3 -3 =1)[games]
Arkadij Naiditsch3/7(+2 -3 =2)[games]
Ian Nepomniachtchi3/7(+1 -2 =4)[games]
Yifan Hou2.5/7(+0 -2 =5)[games]
Georg Meier2.5/7(+0 -2 =5)[games]
*

Chessgames.com Chess Event Description
Dortmund Sparkassen (2015)

The 43rd Dortmund Sparkassen Chess-Meeting took place in the Orchesterzentrum NRW in Dortmund, Germany 27 June - 5 July 2015. Rest days: June 29 and July 2. Chief organizer: Ralf Chadt-Rausch. Players received 100 minutes for 40 moves, then 50 more minutes for the next 20 moves, then 15 more minutes for the rest of the game, with a 30-second increment from move one. Fabiano Caruana won the event for the 3rd time with 5.5/7.

                        1 2 3 4 5 6 7 8 
1 Caruana         2805  * 0 1 1 1 ½ 1 1  5½
2 So              2778  1 * 0 1 0 1 ½ ½  4
3 Nisipeanu       2654  0 1 * ½ 1 ½ ½ ½  4
4 Kramnik         2783  0 0 ½ * 0 1 1 1  3½
5 Naiditsch       2722  0 1 0 1 * 0 ½ ½  3
6 Nepomniachtchi  2720  ½ 0 ½ 0 1 * ½ ½  3
7 Yifan	Hou       2676  0 ½ ½ 0 ½ ½ * ½  2½
8 Meier           2654  0 ½ ½ 0 ½ ½ ½ *  2½
Category: XIX (2724). Chief arbiter: Andrzej Filipowicz

The Open A swiss was won on tiebreak by Glen de Schampheleire with 7/9.

Wikipedia article: Dortmund Sparkassen Chess Meeting#2015
Sparkassen Open: http://www.scm-open.de/OpenA_Tabell...
Chess.com: https://www.chess.com/news/view/5-g...
ChessBase: https://en.chessbase.com/post/fabia...
Chess24: https://chess24.com/en/watch/live-t...
DSB: https://www.schachbund.de/scm-dortm...
TWIC: https://theweekinchess.com/chessnew...
FIDE: https://ratings.fide.com/tournament...

Previous: Dortmund Sparkassen (2014). Next: Dortmund Sparkassen (2016)

 page 1 of 2; games 1-25 of 28  PGN Download
Game  ResultMoves YearEvent/LocaleOpening
1. Kramnik vs Naiditsch 0-1572015Dortmund SparkassenD41 Queen's Gambit Declined, Semi-Tarrasch
2. G Meier vs Y Hou ½-½592015Dortmund SparkassenE06 Catalan, Closed, 5.Nf3
3. Nisipeanu vs So 1-0282015Dortmund SparkassenB23 Sicilian, Closed
4. Nepomniachtchi vs Caruana ½-½462015Dortmund SparkassenA07 King's Indian Attack
5. Nepomniachtchi vs G Meier ½-½252015Dortmund SparkassenC11 French
6. Y Hou vs Kramnik 0-1282015Dortmund SparkassenC65 Ruy Lopez, Berlin Defense
7. Caruana vs So 0-1692015Dortmund SparkassenB90 Sicilian, Najdorf
8. Naiditsch vs Nisipeanu 0-1492015Dortmund SparkassenB12 Caro-Kann Defense
9. So vs Naiditsch 0-1362015Dortmund SparkassenD37 Queen's Gambit Declined
10. Kramnik vs Nepomniachtchi 1-0552015Dortmund SparkassenA04 Reti Opening
11. Nisipeanu vs Y Hou ½-½332015Dortmund SparkassenE16 Queen's Indian
12. G Meier vs Caruana 0-1512015Dortmund SparkassenA04 Reti Opening
13. Caruana vs Naiditsch 1-0412015Dortmund SparkassenE04 Catalan, Open, 5.Nf3
14. Nepomniachtchi vs Nisipeanu ½-½752015Dortmund SparkassenB12 Caro-Kann Defense
15. G Meier vs Kramnik 0-1542015Dortmund SparkassenC67 Ruy Lopez
16. Y Hou vs So ½-½402015Dortmund SparkassenB18 Caro-Kann, Classical
17. So vs Nepomniachtchi 1-0492015Dortmund SparkassenD70 Neo-Grunfeld Defense
18. Kramnik vs Caruana 0-1382015Dortmund SparkassenD78 Neo-Grunfeld, 6.O-O c6
19. Naiditsch vs Y Hou  ½-½642015Dortmund SparkassenE48 Nimzo-Indian, 4.e3 O-O 5.Bd3 d5
20. Nisipeanu vs G Meier ½-½422015Dortmund SparkassenE42 Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)
21. Kramnik vs Nisipeanu ½-½832015Dortmund SparkassenA13 English
22. Caruana vs Y Hou 1-0392015Dortmund SparkassenD31 Queen's Gambit Declined
23. G Meier vs So ½-½432015Dortmund SparkassenD12 Queen's Gambit Declined Slav
24. Nepomniachtchi vs Naiditsch 1-0682015Dortmund SparkassenD36 Queen's Gambit Declined, Exchange, Positional line, 6.Qc2
25. Nisipeanu vs Caruana 0-1302015Dortmund SparkassenC52 Evans Gambit
 page 1 of 2; games 1-25 of 28  PGN Download
  REFINE SEARCH:   White wins (1-0) | Black wins (0-1) | Draws (1/2-1/2)  

Kibitzer's Corner
< Earlier Kibitzing  · PAGE 15 OF 22 ·  Later Kibitzing>
Jul-04-15  Marmot PFL: <Wow! Caruana has gone four in a row!>

Was amazed so many bet on Hou Yifan to draw Caruana. Three game win streak, 130+ rating point edge and the white pieces, what more could you ask?

Jul-04-15  Kasparov Fan: The final position in Caruana Hou yifan game is a mate in 7 39..Qxf4
40.Qxf4 f5
41.Qc7 Ne5
42.Qxe5 Kf8
43.g7+ Kg8
44.Qe6+ Kh7
45.g8Q mate
Jul-04-15  Kasparov Fan: Caruana is showing shades of sinquefield
Jul-04-15  jphamlore: <Marmot PFL: Was amazed so many bet on Hou Yifan to draw Caruana. Three game win streak, 130+ rating point edge and the white pieces, what more could you ask?>

And Hou Yifan's time management is possibly worse than Caruana's, and her play when under time pressure is not exactly Grischuk-level.

Jul-04-15  Imran Iskandar: <Was amazed so many bet on Hou Yifan to draw Caruana. Three game win streak, 130+ rating point edge and the white pieces, what more could you ask?> Same here.
Jul-04-15  Imran Iskandar: Based on the standings, it would benefit Caruana if Kramnik-Nisipeanu were drawn (since Caruana would only need a draw against Nisipeanu to win) , but it does not look the case if one trusts the engines.
Jul-04-15  blackdranzer: It luks lik the " chess messiah" isn't doing that well...!!
Jul-04-15
Premium Chessgames Member		  AylerKupp: <Tiggler> FWIW, the generally accepted definition of statistical significance is if there is 5% or less (effectively 2 ó) that the result is due to chance. If you are using the normal distribution as a basis for estimating the most likely outcome and ó = 200 (one rating class), this requires about 30 games, depending on the rating differential between the players, to achieve a statistical confidence level of 95%.

Other distributions are possible other than the normal distribution including the Verhulst and Student or t-distributions, which have a shallower peak and higher tails. Indeed, the Student or t-distribution is more appropriate when a smaller number of games is used for the calculations. In both of those cases ó will be > 200.

For a discussion of all of this see "The Rating of Chessplayers" by Dr. Arpad Elo which discusses the development of the Elo rating system, alternatives considered, and the math behind them. Highly recommended for anyone who is interested in how rating systems and in particular the Elo rating system were developed.

Jul-04-15  john barleycorn: <blackdranzer: It luks lik the " chess messiah" isn't doing that well...!!>

Do you expect a barracuda to walk on water?

Jul-04-15  Tiggler: <AylerKupp> You can do a chi-squared test on the null hypothesis that the results are random, consistent with published rating and assumed distribution of results based on them. There is no requirement for 30 games: even the first round of 4 games could be tested. The power of the test improves as the number of games increases, that's all.
Jul-04-15  Marmot PFL: Nisipeanu has good chances to draw I believe keeping rook behind passed pawn and K to g5. I think Kramnik may have missed something earlier but his own king is tied down by the pawn on f3.
Jul-04-15  cro777: <Marmot PFL: Nisipeanu has good chances to draw I believe keeping rook behind passed pawn and K to g5.>


click for larger view

This endgame is a draw.

Jul-04-15  metatron2: <Marmot PFL: I think Kramnik may have missed something earlier but his own king is tied down by the pawn on f3>

52. Kxf4 seemed like an easy win to me. The white K just penetrates. How could Kramnik leave Nisipeanu f pawn and (indeed) tie his own king to that pawn ?

Kramnik used to be (in the past) a very strong endgame player ..

Jul-04-15  ChemMac: <Tiggler: <ChemMac>:<Statistically, making any conclusions from a very small sample makes no sense.> 20 games? I think one can. In fact, I think you did: meets expectations. Just like the professor who came late to class, molested his female students, and never turned in a grade on time.>

?? Yes; I am a Professor (Emeritus), but I do not see the relevance of your last comment, let alone the accuracy in my particular case, although I can tell lots of stories, funny or otherwise.

Statistics? Of course, one can make deductions from limited data. For the many of us who just HAVE to post something, it's done all the time! Here; we can say only that two players are performing above their rating expectations and two below. it happens - and is predictable.

Jul-04-15  Tiggler: <ChemMac> No aspersions were directed at you personally. I am also Emeritus.
Jul-04-15  Tiggler: <Marmot PFL: Nisipeanu has good chances to draw I believe keeping rook behind passed pawn and K to g5. I think Kramnik may have missed something earlier but his own king is tied down by the pawn on f3.>

I'm waiting for the .pgn to get posted, because I want to check. Many kibitzers at chess bomb asserted that Kramnik had blundered, based on very low-ply stockfish, of course.

Jul-04-15  fisayo123: It's worth pointing out Wesley So has had only 2 whites all tournament.
Jul-04-15  Marmot PFL: <52. Kxf4 seemed like an easy win to me. The white K just penetrates. How could Kramnik leave Nisipeanu f pawn and (indeed) tie his own king to that pawn ?>

I didn't find anything for black after that either. If 52...Ra3 53 Rb7+ looks very easy for white.

Jul-04-15  Marmot PFL: So gets white tomorrow with Kramnik. Might be an interesting game.
Jul-04-15
Premium Chessgames Member		  Chessgames Bookie: ♔♔ <LAST CALL - FINAL OPPORTUNITY> ♔♔

The 2015 Spring Leg will end tomorrow with betting on the last round of Dortmund (2015)! The top 10 will qualify for the Championship Leg, and one lucky bet can turn you from zero to hero... so place your wagers, feel the excitement, hit the jackpot and crash the leaderboard party:

Dortmund rd 7: LEG-END SPECIAL
Dortmund rd 7: EN PASSANT CAPTURES
Dortmund rd 7: Nisipeanu (2654) - Caruana (2805)
Dortmund rd 7: Nisipeanu (2654) - Caruana (2805): HOW MANY CHECKS?
Dortmund rd 7: So (2778) - Kramnik (2783)
Dortmund rd 7: So (2778) - Kramnik (2783): DRAW NO BET
Dortmund rd 7: Hou Yifan (2676) - Nepomniachtchi (2720)
Dortmund rd 7: Naiditsch (2722) - Meier (2654)
Dortmund rd 7: PICK THREE

Good luck everybody, and have fun!

(Note that the final round will start at 13:00 local time, two hours earlier than the first six rounds.)

Jul-04-15  Tiggler: <metatron2> Right. 52. Kxf4 wins.
Jul-04-15
Premium Chessgames Member		  plang: has been a good, hard-fought tournament
Jul-04-15  choosea: >> kostol: Hou had no winning chances in all games Exxcalibur808: brutal

>> "..giving 100 Free Rating Points to Every Woman ..."

>> "..sex difference averages nearly 250 rating points .."

Jul-04-15  choosea: >> .. the rating system has been the subject of political manipulation over the years, with bonus points, feedback points, fiddle points, inflation, deflation and just about everything else.
Jul-04-15  choosea: >> see "The Rating of Chessplayers" by Dr. Arpad Elo which discusses the development of the Elo rating system

>> "Serious mathematicians have devoted hard work to the rating system trying to improve it, only to have their recommendations ignored."

>> " For women's tournaments, the categories are 200 rating points lower.."

>> "..the K factor varies and there are bonus points.."

>> "..1980, George Cunningham, a man with limited mathematical background, became the rating statistician. He introduced what he himself called "fiddle points". Everybody's rating went up about 100 points"

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