An unexamined life is not worth living.
Saturday, December 26, 2015
DDT-Michael-player, ICC 2015
White to move (Black just weakened f7 square, so there should be a way to take advantage of that!)
Solution is here: http://en.lichess.org/CgQFr5pf#24
Saturday, December 12, 2015
I already wrote about search in a couple of posts, and these features of ChessBase and Chess Assistant are surprisingly still essentially unchanged and relevant:
Online tactics: Find Sacrifices feature in Chessbase Light
Chess Assistant feature - Search for current pawn structure and material
Since then I found two more interesting search features:
1) SCID has this pawn structure search that I was not aware of:
2) Also Chessbase has relatively recently added an ability to search for similar pawn structures.
Still, you can’t directly search for IQP with Chessbase, and it seems that only Chessbase allows to search for sacrifices (if you are aware of other programs that can do that – please leave a comment!). That’s why we have more than one chess database software …
Sunday, November 29, 2015
This chess software review will show you how to learn and practice chess openings without risking rating points! More about Chess Position Trainer on my blog: http://roman-chess.blogspot.ca/search/label/Software%20-%20Chess%20Position%20Trainer
Monday, November 23, 2015
Best Combinations of 2015 - Quarterly Chess Tactics – Volume 3 is now out with over 500 puzzles for you to solve. It is available on Amazon and on Kobo. The Kindle free sample contains dozens of combinations, so you can first practice those positions and see if you like the selection. This publication is a collection of over 500 best combinations played by strong chess players in tournaments that took place the third quarter of 2015. I first filtered the correct combinations with various computer-assisted approaches, and then manually went through the entire collection to select only the puzzles useful to practical chess players.
As criteria for including the games into this book - I used Mikhail Botvinnik's definition of a combination, which defines it as "a forced maneuver or maneuvers combined with a sacrifice, as a result of which the active side gains an objective advantage." Finding such combinations is typically the most useful type of exercise for those who want to sharpen their tactical skills.
Saturday, November 21, 2015
Sunday, November 15, 2015
Saturday, November 7, 2015
The Chess World Cup is my favourite tournament to follow since 2011, and I dedicated an ebook to it back in 2013. I intend to cover all combinations from the 2015 Baku World Cup in the Quarterly Tactics series, but for now here are some selected fragments:
Sergei Zhigalko - Ivan Bukavshin
World Cup 2015.09.13 , B47
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 Nf6 7. Be3 a6 8. O-O Be7 9. f4 d6 10. Qe1 O-O 11. Qg3 Nxd4 12. Bxd4 b5 13. a3 Bb7 14. Kh1 Bc6 15. Rae1 Rad816. Bf3 Qb7 17. Nd1 Ne8 18. Nf2 Bf6 19. Bxf6 Nxf6 20. e5 Ne8 21. Ng4 Bxf3 22. Rxf3 dxe5 23. fxe5 Qe7
- ( 25. ... gxf6 26. Rh3 +- )
26. Qe4 Nxf6 27. exf6 Qd6 28. Rd3 Qb6 29. fxg7+ Kxg7 30. Rg3+ Kh8 31. Qf4 e5 32. Qxe5+ f6 33. Qh5 Qc7 34. Qxh6+ Qh7 35. Qf4 Qxc2 36. Rh3+ Kg8 37. Qg4+ Kf7 38. Qe6+ Kg7 39. Qe7+ 1-0
Shakhriyar Mamedyarov - Yifan Hou
World Cup 2015.09.16 , E54
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 cxd4 9. exd4 b6 10. Bg5 Bb7 11. Qe2 h6
12. d5 Bxc3 13. dxe6 fxe6 14. bxc3 Bd5 15. Bxf6 Qxf6 16. Nd4 Rc8 17. Bxd5 exd5 18. Qb5 Qf7 19. Rfe1 Nd7 20. Nc6 a6 21. Qxd5 Qxd5 22. Ne7+ Kf8 23. Nxd5 Rc5 24. Rad1 Re8 25. Kf1 Rxe1+ 26. Kxe1 Kf7 27. Ke2 g5 28. Ne3 Ke6 29. c4 Ne5 30. Rb1 b5 31. cxb5 axb5 32. g3 h5 33. h3 Nf7 34. Rb4 Nd6 35. h4 g4 36. Kd2 Rc7 37. Nd1 Nc4+ 38. Ke2 Nd6 39. Kd3 Rf7 40. Kd4 Rf3 41. Rb3 Rf5 42. Re3+ Kf6 43. Ra3 Ke6 44. Re3+ Kf6 45. Re2 Rf3 46. Kc5 Nf5 47. Rd2 Nxg3 48. fxg3 Rxg3 49. Rd6+ Kg7 50. Rd7+ Kg6 51. Rd6+ Kg7 52. Rd5 Kg6 53. Rg5+ Kh6 54. Re5 Rg2 55. a3 Ra2 56. Kb4 Rh2 57. Ne3 Rb2+ 58. Kc3 Rf2 59. Rg5 Rf3 60. Kd4 Rh3 61. Nf5+ Kh7 62. Ke5 Rxa3 63. Rxh5+ Kg6 64. Rg5+ Kh7 65. Rg7+ Kh8 66. Rxg4 Ra5 67. Kf6 Ra6+ 68. Kg5 Ra4 69. Rg1 Rb4 70. Rd1 Rb2 71. Rd8+ Kh7 72. Rd7+ Kg8 73. Nh6+ Kh8 74. h5 Rg2+ 75. Ng4 1-0
Alexander Grischuk - Vladimir Fedoseev
World Cup 2015.09.16 , A15
1. c4 Nf6 2. g3 e5 3. Bg2 c6 4. d4 exd4 5. Qxd4 Na6 6. Nf3 Bc5 7. Qe5+ Be7 8. O-O O-O 9. Nc3 Re8 10. Rd1 Bc5 11. Qf4 Nc7 12. Qf5 d5 13. Qc2 Qe7 14. cxd5 Ncxd5 15. Nxd5 cxd5 16. Bf4 Bg4 17. h3 Rac8 18. Qd3 Ne4 19. Be3 Bf5 20. Bxc5 Rxc5 21. Qe3 Qd7 22. g4 Bg6 23. Rac1 b6 24. Qf4 Qa4 25. h4 f6 26. a3 Rc4 27. Qh2 Qb3 28. h5 Bf7 29. Rb1
- ( 31. ... Qxe2+ 32. Kg1 Rxg4 33. Kh1! ~ )
Mamedyarov, S. - Sethuraman, S.
FIDE World Cup 2015 2015.09.17 , B13
1. c4 c6 2. e4 d5 3. exd5 cxd5 4. d4 Nf6 5. Nc3 Nc6 6. Bg5 dxc4 7. Bxc4 Qxd4 8. Qxd4 Nxd4 9. O-O-O e5 10. f4 Bg4 11. Nf3 Bxf3 12. gxf3 Rc8 13. fxe5 Rxc4 14. exf6 Ne6 15. Rhe1 g6 16. Kb1 Bb4
Kramnik, V. - Andreikin, D.
FIDE World Cup 2015 2015.09.18 , D73
1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. c4 c6 6. Qb3 O-O 7. Nc3 Qb6 8. O-O Be6 9. Na4 Qxb3 10. axb3 Nbd7 11. Nc3 h6 12. Ne5 Nb6 13. c5 Nbd7 14. f4 a6 15. b4 Bf5 16. h3 h5 17. Be3 Rab8 18. Rfd1 Ne8 19. Bf2 Ndf6 20. b5 axb5 21. Ra7 Bh6 22. Na2 Ng7 23. Nb4 Rfc8 24. Rda1 g5 25. e3 Be6
36. ... Bxf4 37. Bxf7+ Kh8 38. Bd8 Be3+ 39. Kg2 Bxd4 40. b4 Ne3+ 41. Kf3 Nc2 42. Kg4 Nxb4 43. Kf5 Nd3 44. Be7 Ra8 45. Be6 Ra1 46. Bxd5 Rf1+ 47. Ke4 Bxc5 48. Kxd3 Bxe7 49. Bxc6 Rd1+ 50. Kc2 1/2-1/2
Karjakin, Sergey - Andreikin, D.
FIDE World Cup 2015 2015.09.22 , A11
1. c4 c6 2. Nf3 d5 3. g3 g6 4. Bg2 Bg7 5. cxd5 cxd5 6. d4 Nf6 7. Nc3 O-O 8. Ne5 Nc6 9. O-O Bf5 10. Be3 Rc8 11. Rc1 Be6 12. Nd3 Bf5 13. Ne5 e6 14. h3 h5 15. f3 Nxe5 16. dxe5 Nd7 17. g4 hxg4 18. hxg4 Bxg4 19. fxg4 Nxe5 20. Bd4 Qh4 21. Qe1 Qxg4 22. Rd1 Nf3+ 23. Rxf3 Bxd4+ 24. Kf1 Be5 25. Qd2 Rc4 26. Qe3 Bg7 27. Qxa7 Rb4 28. b3 Rc8 29. Rdd3 Qg5 30. Nd1 Rg4 31. Qxb7 Rf8 32. Ne3 Bd4 33. Rxd4 Rxd4 34. Qc7 Rd2 35. a4 Rb2 36. Nd1 Rb1 37. Rd3 Rc1 38. Qh2 Rfc8 39. Kf2 Qf6+ 40. Bf3 e5 41. Ne3 d4 42. Ng4 Qg5 43. Nxe5 R8c3
Saturday, October 31, 2015
To build practical strength and simply to have fun, a chessplayer needs constant practice in their tactical skills. If you want to practice your combination solving ability on a daily basis, you might want to know that I started maintaining a new blog at http://chesspublisher.blogspot.com. The puzzles appear daily and you can take you time to figure out the solution and then see the answer by clicking on the question mark. You can also have these puzzles appear in your RSS reader by subscribing to the Daily Chess Tactics feed. Please let me know if you have any feedback!
Click on the blue spot to see the answer.
There is already an archive for the last two months, and you can see the last 3 puzzles in this roman-chess blog in the top right corner:
Friday, October 30, 2015
History does not repeat itself, but it does rhyme… (Mark Twain)
If Black plays a6 and b5, the position is almost exactly the same, except that the queenside pawns are shifted 1 file to the right.
Karjakin-Eljanov, 2015 (analysis)
Saturday, October 24, 2015
How often do you find a chess endgame with 5 passed pawns running up and down the board and most of them being on the verge of promotion? Both kings fight for stopping the pawns and also fall prey to random checks upon pawn promotion, as well as discovered checks of a lone black bishop that also tries to bring some method to this madness and support its own pawns while constraining the opponent’s passers …
An analysis of an ICC game led me down the odd path with this super sharp position being the culprit and Black’s defense relying on some
study-like computer–style precision.
analsyis of DDT3000-hell, ICC 2015
8/8/2P3P1/8/P4p2/1kb2K1p/8/8 b - - 0 57
Sunday, October 18, 2015
Keres mem 39th 2014.05.19 1/2-1/2 D27
- ( 30. ... Bc6! -/+ left black with all advantages of his position )
Saturday, October 10, 2015
A good example of why one should never ever play with a flag hanging; "trojan horse" (a knight is a 'horse' in russian chess terminology) occurs around 34:00 where I have two bishops, attempt to trap opponent's knight on 'b1', abandon my own pawns on the kingisde, lose them all, and the game. Computer analysis at http://en.lichess.org/3kP5lrXd
Sunday, October 4, 2015
Jiganchine, Roman -- Wu, Howard
BC ch 99th 2014.10.10 1/2-1/2 B67
- This is a positional mistake after which White is struggling to come up with a helpful plan.
- ( 22. c3 would have kept better control over dark squares while keeping options open. )
Saturday, September 26, 2015
Lai, Peter -- Jiganchine, Roman
Langley Open 2012.09.03 1/2-1/2 D27
1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. a4 Nc6 8. Nc3 Be7 9. Qe2 cxd4 10. Rd1 O-O 11. exd4 Nd5 12. Bd3 Re8 13. Ne5 Nxe5 14. dxe5 Qa5 15. Ne4 Bd7 16. Bg5 Bxg5 17. Nxg5 h6 18. Bh7+ Kf8 19. Nf3 Bc6 20. Be4 Rad8 21. Qe1 Qxe1+ 22. Nxe1 Nb4 23. Bxc6 Nxc6 24. f4 Rd4 25. Rxd4 Nxd4 26. Kf2 Rc8 27. Ra3 Ke7 28. Rc3 Rxc3 29. bxc3 Nb3 30. Nd3 Kd7 31. Ke3 Kc6 32. Ke4 g6 33. Nb2
- 33. ... b5 34. axb5+ Kxb5 was an obvious way of trying to obtain a distant passed pawn in the knight endgame.
- Black has a nearly decisive advantage here because the 'a' pawn is hard for White to deal with.
Thursday, September 10, 2015
This Friday, September 11, 2015, the Chess World Cup begins in Baku, perhaps main chess event of the year. Two years ago, the World Cup in Tromso produced a lot of great games, to review some of them I invite you to checkout the combinations from that tournament that I covered in my ebook "Play Like a Grandmaster - Tactics from Chess World Cup 2013” – it is available on Amazon and on Kobo.
Sunday, September 6, 2015
In this ICC game against a grandmaster Leonid Gofshtein I overlooked stalemate opportunity not once, but twice:
Solution and full game: http://en.lichess.org/L6iS8rD7#65
Sunday, August 30, 2015
Best Combinations of 2015 - Quarterly Chess Tactics – Volume 2 is now out with over 200 puzzles for you to solve. It is available on Amazon and on Kobo. The Kindle free sample contains dozens of combinations, so you can first practice those positions and see if you like the selection. Volume One was out back in July.
This publication is a collection of over 200 best combinations played by strong chess players in tournaments that took place the second quarter of 2015. To see the solution for the combination - go to the next page in your e-reader. The book is the second in the "Quarterly Chess Tactics" series, which provides instructive tactical positions from the most recent top chess tournaments.
Quarterly Chess Tactics will allow you to
* Follow the recent games of top grandmasters
* Improve your game
* Study combinations any time and anywhere
* Enjoy a collection of annotated puzzles that you have not seen in any other tactics books
* Maintain regular practice by solving several puzzles every day
In this new series, all the puzzles have been carefully checked to ensure the correctness and uniqueness of solutions, so you can be certain that there is only one winning continuation in each position. This series is a continuation of the Monthly Chess Tactics series from 2014 that included 12 collection of puzzles:
- Best Combinations - January 2014
- Best Combinations - February 2014
- Best Combinations - March 2014
- Best Combinations - April 2014
- Best Combinations - May 2014
- Best Combinations - June 2014
- Best Combinations – July 2014
- Best Combinations – August 2014
- Best Combinations – September 2014
- Best Combinations – October 2014
- Best Combinations – November 2014
- Best Combinations – December 2014
Saturday, August 29, 2015
Sunday, August 16, 2015
Saturday, August 15, 2015
2008 , A07
1. Nf3 d5 2. g3 Nf6 3. Bg2 c6 4. b3 Bf5 5. Bb2 e6 6. d3 h6 7. Nbd2 Be7 8. O-O O-O 9. c4 a5 10. a3 Bh7 11. Rc1 Nbd7 12. Rc2 Bd6 13. Qa1 Qe7 14. cxd5 cxd5 15. Nd4 Rfc8 16. Rfc1 Rxc2 17. Rxc2 Bc5 18. Nb5
- The central push is possible due to weakness of f2.
- ( 19. Nc7 Rc8 20. Nxd5 Nxd5 21. Bxd5 Bxf2+ 22. Kxf2 Rxc2 )
- ( Accepting the sacrifice is also losing because the white pieces are all stuck in the corner on the queenside. 22. Kxf2 exd3 23. Nxd3 Ng4+ 24. Kf1 Bxd3 25. exd3 Qe3 26. Bd4 Nxh2# )
Rapport, Richard - Svetushkin, Dmitry
2013 , A01
1. b3 d5 2. Bb2 Nf6 3. g3 c6 4. Bg2 Bf5 5. Nf3 h6 6. d3 e6 7. Nbd2 Be7 8. O-O O-O 9. c4 Nbd7 10. a3 a5 11. Rc1 Bh7 12. Rc2
- White committed to the queenside piece regrouping so e2-e4 is not in the cards yet. Therefore Black can safely put the bishop on d6 and prepare e5.
Siegel, Georg - Short, Nigel D
1981 , A07
1. Nf3 d5 2. g3 Nf6 3. Bg2 c6 4. O-O Bf5 5. d3 e6 6. b3 h6 7. Bb2 Be7 8. Nbd2 O-O 9. c4 Nbd7 10. a3 a5 11. Rc1 Bh7 12. Rc2 Bd6 13. Qa1 Qe7 14. Rfc1 e5 15. cxd5 cxd5 16. Nf1 Rfe8 17. Ne3
- giving up e5 but going for f2.
- ( 20. fxe3 Qxe3+ 21. Kh1 Nf2+ 22. Kg1 Nh3+ 23. Kh1 Qg1+ 24. Rxg1 Nf2# )
- ( 28. Rxc5 Be4+ 29. Rf3 Bxf3# )
- Checkmate is inevitable so White resigned. Quite a bloodbath that seemed unlikely to come out of a calm opening.
2000 , C05
1. e4 e6 2. d4 d5 3. Nd2 Be7 4. Ngf3 Nf6 5. e5 Nfd7 6. Bd3 c5 7. c3 Nc6 8. O-O a5 9. Re1 cxd4 10. cxd4 Nb6 11. Nb1 Bd7 12. Nc3 a4
- White has to push through on the king side to extend the diagonal for the b1 bishop and free up the a1 rook.
- Now the structure remains very unbalanced with White dominating the kingside and Black - eventually getting through on the queenside.
- ( 31. ... fxe6 32. Nxe6 Nxe6 33. Bxe6 Rgf8 34. Ne5 would activate White's pieces. )
Smirin, Ilia - Abbasov, Farid
2011 , C05
1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ngf3 g6 8. h4 h6 9. Bb1 b5 10. a3 a5
- With the rook supporting the h pawn Smirin delays castling and uses the f1 square to rerout the knight.
- There goes the second knight.
- With the Black pieces pushed back, White finally castles. The rook now is useful again on the f file.
Smirin, Ilia - Iotov, Valentin
2008 , C05
1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. c3 c5 6. Bd3 Nc6 7. Ngf3 g6 8. h4 Qb6 9. h5 g5
- ( 20. ... Rxh7 21. Ba5+ Kc8 22. Rxc6+ bxc6 23. Qxc6+ Kb824. Rh3 +- It turns out the rook is well developed without ever requiring to castle. )
Smirin, Ilia - Gleizerov, Evgeny
2008 , C05
1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ngf3 g6 8. h4 h6 9. Nf1 Qa5
- Extravagant but probably possible.
Smirin, Ilia - Akobian, Varuzhan
2005 , C05
1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 Nf6 5. e5 Nfd7 6. c3 Nc6 7. Bd3 Be7 8. O-O g5 9. dxc5 g4 10. Nd4 Ndxe5 11. Bb5 Bd7 12. N2b3 Rg8 13. Re1 Nc4 14. Bf4 Nxd4 15. Nxd4 Rc8 16. b3 Na3 17. Bd3 Rxc5 18. Bxh7 Rg7 19. Bd3 Rxc3 20. Be5 Bf6 21. Qd2 Bxe5 22. Rxe5 Qc7 23. Rh5 Rg8 24. Rh7 e5 25. Nf5 e4
- Black king gets punished for staying in the center.
1994 , B22
1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 e6 5. Na3 Nf6 6. Nb5 Na6 7. Be3 cxd4
- Offering exchange of queens since Black knight is badly placed on a6.
- White maintains initiative despite many exchanges.
- The knight on a6 continues to be shut out of play
Kharlov, Andrei - Csom Istvan
1992 , B22
1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 e6 5. Na3 Nf6 6. Nb5 Na6 7. Be3 cxd4 8. Qxd4 Bc5