Arhiva partija – šahovska otvaranja » [ šahovski klub ] ODRA

Arhiva partija: Španjolska, Berlinska varijanta | Caruana, Fabiano (2791) – Kramnik, Vladimir (2791) | ½ – ½ | Taljev memorijal 2013 | 6. kolo | 19.6.2013

Španjolska Comments Off

Jun 192013

Ovo je jedna od “onih” partija 🙂

Caruana i Kramnik igrali su Berlinsku varijantu Španjolske partije za koju je ruski velemajstor veliki stučnjak, još iz doba mečeva protiv Kasparova. Bijeli je izabrao rijedak nastavak koji su, kako se ispostavilo, ruski velemajstori analizirali prije turnira kandidata u Kazanu; međutim rus ovo jednostavno nije očekivao, pa je dosta vremena gubio pokušavajući se prisjetiti svoje analize. Na kraju je i uspio, jer je bijeli zaostao u razvoju, pa je crni imao dovoljnu kompenzaciju za manjak materijala. Uglavnom, dojam je da tu ima još dosta prostora za kućnu analizu 😉

[Event "Taljev memorijal 2013"] [Round "6"] [Date "19.06.2013."] [White "Caruana, Fabiano (2791)"] [Black "Kramnik, Vladimir (2792)"] [Result "½ - ½"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5 Nf5 8. Qxd8+ Kxd8 9. h3 Bd7 10. Rd1 Kc8 11. g4 Ne7 12. Ng5 Be8 13. f4 h5 14. f5 hxg4 15. hxg4 Rh4 16. Kf2 Rxg4 17.Rh1 Nxf5 (17...Rxg5 18. Bxg5 Nxf5 19. Rh8 Bc5+ 20. Kf3 Kd7 21. Nd2 Nd4+ 22. Kg4 Be7 23. Rd1 Bxg5 24. Kxg5 Nxc2 25. Ne4+) 18. Rh8 Bc5+ 19. Kf3 Rg1 (19...Rg3+ 20. Kf4 Kd7 21. Ne4 Be3+ 22. Bxe3 Rxe3 23. Kxf5 Re1 24. Kf4 Rd8 25. Nc5+ Ke7 26. Nd3 Rf1+) 20. Rxe8+ (20. e6 Nd4+ 21. Kf4 Rf1+ 22. Kg3 fxe6 23. Rxe8+ Kd7 24. Rxa8 Bd6+ 25. Kh3 Rh1+ 26. Kg2 Rxc1 27. Rg8 Nxc2) Kd7 21. Rxa8 Nd4+ (21...Rxc1 22. c3 Ne3 23. b4 Nc2 24. bxc5 Nxa1 25. Nd2 f6 26. exf6 gxf6 27. Nh7 Rxc3+ 28. Kf4 Rxc5 29. Ne4) (21...Nh4+ 22. Ke2 Rxc1 23. c3 Ke7 24. a4 Ng2 25. Rc8 Bb6 26. a5 Be3 27. Rxc7+ Kd8 28. Rxf7 Bxg5 29. Rxb7) 22. Ke4 Rxc1 (22...Nxc2? 23. Bf4 Nxa1 24. Nd2 Rg2 25. Nxf7 Be7 26. Rxa7 Ke6 27. Kf3 Rg1 28. Be3 Re1 29. Ng5+ Bxg5 30. Bxg5) 23. b4 Bb6 24. c4 (24. a3 f5+ 25. exf6 gxf6 26. Nf7 Rd1 27. c3 Re1+ 28. Kd3 Nb3 29. Ra2 Nc1+ 30. Kd2 Re2+ 31. Kxc1 Rxa2) c5 25. a3 Re1+ 26. Kd3 Rd1+ 27. Kc3 Rc1+ 28. Kd3 (28. Kb2 Rc2#) Rd1+ 29. Kc3 Rc1+ 30. Kd3 1/2-1/2 You must activate JavaScript to enhance chess game visualization.

Arhiva partija: Španjolska | Anand, Viswanathan (2786) – Caruana, Fabiano (2790) | 0-1 | Taljev memorijal 2013 | 1. kolo | 13.6.2013

Španjolska Comments Off

Jun 152013

[Event "Taljev memorijal 2013"] [Round "1"] [Date "13.06.2013."] [White "Viswanathan Anand (2786)"] [Black "Caruana, Fabiano (2790)"] [Result "0-1"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. h3 Bb7 9. d3 d5 10. exd5 Nxd5 11. Nbd2 f6 12. c3 Kh8 13. Bc2 Qd7 14. Nb3 a5 15. a4 bxa4 16. Rxa4 Ncb4 17. Rxa5 Nxc2 18. Qxc2 Nb6 19. Rxa8 Rxa8 20. Nbd2 g5 21. Nh2 Rd8 22. d4 exd4 23. cxd4 Bb4 24. Re2 Qxd4 25. Ndf1?! (25. Qxc7) 25...Qc5?! (2...Qd5) 26. Qxc5 Bxc5 27. Rc2 Bd6 28. Ng4 Kg7 29. Bd2 Kg6 30. Nge3 f5 31. Nc4 Nxc4 32. Rxc4 Ra8 33. Rc1 f4 34. Bc3 h5 35. Nd2 Bd5 36. f3 Bc5+ 37. Kf1 Be3 38. Ke2 Bc4+ 39. Ke1?! (39. Kd1) 39...Re8 40. Kd1?! (40. b4) 40...Bxd2 41. Kxd2 Re2+ 42. Kd1 Rxg2 43. Bd4 Be2+ 44. Ke1 Bxf3 45. Rxc7 Re2+ 46. Kf1 Rh2 47. Rg7+ Kf5 48. Be5 Kxe5 (48...Kxe5 49. Rxg5+ Ke4) 0-1 You must activate JavaScript to enhance chess game visualization.

Arhiva partija: Sicilijanka, Najdorfova varijanta | Domínguez, Leinier (2757) – Morozevich, Alexander (2743) | 1 – 0 | 2009 Corus Tournament

Sicilijanska obrana Comments Off

Jun 052013

Leinier Domínguez – nakon niza stvarno impresivnih rezultata ovaj 29-ogodišnji kubanac je na pragu ulaska u top 10 (11. pozicija trenutno). Evo njegovih posljednjih rezultata:

1	Kamsky	2741	0 b	−4.7	4th FIDE Grand Prix (1)	22.05.2013
2	Ponomariov	2742	½ w	+0.3	4th FIDE Grand Prix (2)	23.05.2013
3	Ivanchuk	2755	1 b	+5.4	4th FIDE Grand Prix (3)	24.05.2013
4	Svidler	2769	1 w	+5.6	4th FIDE Grand Prix (4)	25.05.2013
5	Kasimdzhanov	2699	1 b	+4.7	4th FIDE Grand Prix (5)	27.05.2013
6	Nakamura	2775	½ w	+0.7	4th FIDE Grand Prix (6)	28.05.2013
7	Bacrot	2725	½ b	0.0	4th FIDE Grand Prix (7)	29.05.2013
8	Morozevich	2760	1 w	+5.5	4th FIDE Grand Prix (8)	30.05.2013
9	Caruana	2774	1 b	+5.7	4th FIDE Grand Prix (9)	01.06.2013
10	Grischuk	2779	½ b	+0.8	4th FIDE Grand Prix (10)	02.06.2013
11	Topalov	2793	1 w	+6.0	4th FIDE Grand Prix (11)	03.06.2013

Evo jedne stvarno lijepe sicilijanke iz 2009-e godine:

[Event "2009 Corus Tournament"] [Date "2009."] [White "Leinier Domínguez (2757)"] [Black "Alexander Morozevich (2743)"] [Result "1-0"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. Qd2 Nbd7 9. f3 b5 10. O-O-O Rc8 11. g4 Nb6 12. g5 b4 13. Na4 Nxe4 14. fxe4 Nxa4 15. Qxb4 Qc7 16. Rd2 Bd7 17. Qa5 Qc6 18. Bxa6 Rb8 19. Rd5 Be7 20. Ba7 Ra8 21. Bb5 Qb7 22. Qxa4 Rxa7 23. Na5 Qc7 24. Rhd1 Bxb5 25. Qxb5+ Kf8 26. Kb1 g6 27. Nc4 Rb7 28. Qa4 Qb8 29. b3 Ra7 30. Qc6 Rc7 31. Rb5 Qa7 32. Qd5 Qf2 33. Qd2 Qf3 34. Nxd6 Bxg5 35. Nf5 Rc8 36. Rb8 1-0 You must activate JavaScript to enhance chess game visualization.

Arhiva partija: Primljeni damin gambit | Yilmaz, Mustafa (2537) – Stević, Hrvoje (2637) | 4. kolo | EICC 2013 | 8.5.2013

Damin gambit, Vijesti HR, Vijesti svijet Comments Off

May 092013

Pred 5. krug XIV pojedinačnog Europskog prvenstva sam na vrhu se izdvojio Moiseenko Alexander (UKR), jedini igrač sa 4 boda iz 4 partije. Naš najbolje plasirani igrač je Brkić Ante sa 3/4 na 16. mjestu, slijedi Šarić Ivan, koji je nakon odlične igre u prva tri kola u četvrtom nažalost izgubio i trenutačno je 68. sa 2,5/4. 2,5 boda ima i Hrvoje Stević na 95. mjestu.

[Event "EICC 2013"] [Round "4"] [Date "08.05.2013."] [White "Mustafa Yilmaz (2537)"] [Black "Hrvoje Stević (2637)"] [Result "1/2-1/2"] 1. d4 d5 2. c4 dxc4 3. e4 e5 4. Nf3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 exd4 7. Nxd4 Nf6 8. Nc3 O-O 9. O-O-O c5 10. Ndb5 Qxd2+ 11. Rxd2 a6 12. Nd6 b5 13. e5 Nfd7 14. f4 Nb6 15. Be2 Nc6 16. Nce4 Ra7 17. Nxc5 Rc7 18. Nxc8 Rfxc8 19. Rhd1 g5 20. Bg4 Nb4 21. a3 Nd3+ 22. Nxd3 cxd3+ 23. Kb1 Re8 24. e6 fxe6 25. fxg5 Rc5 26. Rxd3 Rxg5 27. Rg3 Kg7 28. Rd6 Nc4 29. Rxe6 Rxe6 30. Bxe6 Rxg3 31. hxg3 Kf6 32. Bc8 a5 33. Kc2 Ke5 34. Bd7 Nd6 35. Kd3 Kd5 36. Bg4 a4 37. Bf3+ Kc5 38. Kc3 Nc4 39. Be2 Ne3 40. Kd3 Nc4 41. Kc3 Ne3 42. Bd3 h6 43. Be4 Nd1+ 44. Kc2 Kd4 45. Bc6 Ne3+ 46. Kc1 Kc4 47. Bf3 Kd3 48. Bc6 Kc4 49. Bf3 Kd3 50. Bc6 Kc4 51. Bf3 1/2-1/2 You must activate JavaScript to enhance chess game visualization.

Arhiva partija: Holandska obrana | W Troff, Kayden (2421) – Kamsky, Gata (2741) | 0 – 1 | 2013 U.S. Championship | 2. kolo

Holandska obrana Comments Off

May 052013

[Event "2013 U.S. Championship"] [Round "2"] [Date "04.05.2013."] [White "Kayden W Troff (2421)"] [Black "Gata Kamsky (2741)"] [Result "0-1"] 1. d4 f5 2. c4 Nf6 3. Nc3 d6 4. g3 g6 5. Bg2 Bg7 6. Nh3 e6 7. Qa4+ c6 8. d5 O-O 9. dxe6 Bxe6 10. Ng5 Bc8 11. O-O Qe7 12. Qa3 Nbd7 13. Rd1 Ne8 14. Be3 Ne5 15. c5 dxc5 16. Bxc5 Qxg5 17. f4 Qf6 18. fxe5 Qxe5 19. Bxf8 Bxf8 20. Qb3+ Kg7 21. Bf3 Nd6 22. Na4 Nb5 23. Qd3 Be6 24. Kg2 g5 25. Kh1 Be7 26. Qc2 g4 27. Bg2 h5 28. e4 h4 29. exf5 Bxf5 30. Qc4 h3 31. Re1 hxg2+ 32. Kxg2 Qf6 0-1 You must activate JavaScript to enhance chess game visualization.

Arhiva partija: Slavenska obrana | Ding, Liren (2707) – Aronian, Levon (2809) | 1-0 | Aljehinov memorijal | 1. kolo | 21.4.2013

Slavenska obrana Comments Off

Apr 242013

IMG_8041_ps_1000

[Event "Aljehinov memorijal 2013"] [Round "1"] [Date "21.04.2013."] [White "Ding, Liren (2707)"] [Black "Aronian, Levon (2809)"] [Result "1-0"] 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. e3 e6 6. c5 Nbd7 7. b4 b6 8. Bb2 a5 9. a3 Be7 10. Bd3 O-O 11. O-O Ba6 12. Ne1 Bc4 13. Bxc4 dxc4 14. Qe2 Rb8 15. Ra2 b5 16. e4 Rb7 17. Nc2 Nb8 18. Raa1 Qc8 19. Rad1 Rd8 20. Bc1 Na6 21. Bf4 Rbd7 22. h3 Ne8 23. Qe3 Bf6 24. e5 Be7 25. Ne4 Nac7 26. Nd6 Qa8 27. Qg3 Nd5 28. Ne3 Nc3 29. Rde1 Bxd6 30. exd6 Ne4 31. Qh4 Nd2 32. Nd5 Nxf1 33. Nb6 Qa7 34. Rxf1 Nf6 35. Be5 Nd5 36. Nxd5 exd5 37. Bxg7 Kxg7 38. Qg5+ Kf8 39. Qf6 Kg8 40. Qg5+ Kf8 41. Qf6 Kg8 42. Re1 axb4 (42...h6 43.Re3 Kh7 44.Re7 Rf8 45.Qf5+ Kg8 46.Rxd7 Qa8 47.Qg4+ Kh7 48.Qe6 Kg7 49.Qe5+ Kg6 50.bxa5 Kh7 51.Rc7 c3 52.Qf6) 43. Re5 h6 44. Rh5 Qxa3 45. Qxh6 f6 46. Qxf6 1-0 You must activate JavaScript to enhance chess game visualization.

Arhiva partija: Francuska obrana – odgođena varijanta izmjene | Alexander Alekhine – Frederick D Yates | 1-0 | Hastings 1925/26 (1926)

Francuska obrana Comments Off

Apr 242013

[Event "Hastings"] [Site "Hastings, England"] [Date "1926.01.01"] [Round "6"] [Result "1-0"] [White "Alexander Alekhine"] [Black "Frederick D Yates"] [ECO "C01"] 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. exd5 exd5 5. Bd3 Nf6 6. Bg5 O-O 7. Nge2 Re8 8. O-O c6 9. Ng3 Nbd7 10. Nh5 Be7 11. Re1 h6 12. Bh4 Nxh5 13. Bxe7 Rxe7 14. Qxh5 Nf6 15. Qh4 Bd7 16. Re5 Rxe5 17. dxe5 Nh7 18. Qxd8+ Rxd8 19. f4 Re8 20. Kf2 Nf8 21. b4 Ne6 22. g3 Kf8 23. Re1 g6 24. b5 Nc5 25. bxc6 bxc6 26. Rb1 Ke7 27. Rb4 h5 28. Ne2 Kd8 29. Rb8+ Ke7 30. Rxe8+ Bxe8 31. Ke3 Nxd3 32. cxd3 c5 33. d4 c4 34. f5 g5 35. h4 f6 36. hxg5 fxg5 37. Ng1 Bd7 38. f6+ Ke8 39. Nf3 g4 40. Nh4 Be6 41. Ng6 Bf7 42. Nf4 Kd7 43. Ke2 a5 44. Ke3 Bg8 45. Nxh5 Bf7 46. Nf4 Bg8 47. Ne2 Be6 48. Kf4 Ke8 49. Kg5 Kf7 50. Nc3 Kf8 51. Kg6 Kg8 52. f7+ Kf8 53. Kf6 Bxf7 54. e6 Bh5 55. Nxd5 Be8 56. Nc3 1-0 You must activate JavaScript to enhance chess game visualization.

Arhiva partija: Reti-Barcza sistem | Kramnik, Vladimir (2810) – Aronian, Levon (2809) | 1/2-1/2 | Turnir kandidata, London 2013 | 5. kolo | 20.3.2013

Retijevo otvaranje Comments Off

Apr 162013

[Event "Turnir kandidata, London 2013"] [Round "5"] [Date "20.03.2013."] [White "Kramnik, Vladimir (2810)"] [Black "Aronian, Levon (2809)"] [Result "1/2-1/2"] 1. Nf3 d5 2. g3 Bg4 3. Bg2 e6 4. c4 c6 5. O-O Nf6 6. cxd5 Bxf3 7. Bxf3 cxd5 8. Nc3 Nc6 9. d4 Be7 10. e3 O-O 11. Bd2 Qb8 12. Rc1 Rc8 13. Bg2 b5 14. e4 b4 15. Bf4 Qb6 16. Na4 Qa5 17. e5 Nd7 18. Be3 Nb6 19. Nxb6 axb6 20. f4 Qxa2 21. f5 exf5 22. b3 Qa5 23. Qf3 Nd8 24. Qxd5 Rxc1 25. Rxc1 Qxd5 26. Bxd5 Ra5 27. Bf3 Ra3 28. Rc8 Rxb3 29. Kf2 Rc3 30. Rb8 b3 31. Rxb6 g5 32. Rb8 Rc4 33. d5 Rb4 34. Rxb4 Bxb4 35. Bd1 b2 36. Bc2 Nb7 37. Bxg5 Nc5 38. Bxf5 Na4 39. d6 Nc3 40. d7 Ba5 41. Ke3 f6 42. Bxf6 Nd5+ 43. Kd4 Nxf6 44. exf6 Kf7 45. Bxh7 Kxf6 46. Kd5 Ke7 47. Kc6 Kd8 48. g4 Be1 49. h3 Bh4 50. Kd6 Be7+ 51. Ke6 Bh4 52. Bb1 Kc7 53. Be4 Kd8 54. Bc2 Kc7 55. Bb1 Kd8 56. Be4 Kc7 57. Bd3 Kd8 58. Kd6 Be7+ 59. Ke6 Bh4 60. Bf5 Kc7 61. Kf7 b1=Q 62. Bxb1 Kxd7 63. Ba2 Kd6 64. Kg6 Ke5 65. Kh5 Be7 66. g5 Kf4 67. h4 Kg3 68. Bc4 Bf8 69. Be2 Bg7 70. Bc4 Bf8 71. g6 Kf4 72. Ba2 Bg7 1/2-1/2 You must activate JavaScript to enhance chess game visualization.

Teorijska tablica:

reti teor

Arhiva partija: Španjolska | Caruana, Fabiano (2777) – Ivanchuk, Vassily (2751) | 1-0 | Ruska liga 2013 | 5. kolo | 11.4.2013

Španjolska Comments Off

Apr 112013

Evo i link, za one koji kuže ćirilicu, pa još i ruski ;); za ostale tu je Google Translate 🙂

[Event "Ruska liga 2013"] [Round "5"] [Date "11.04.2013."] [White "Caruana, Fabiano (2777)"] [Black "Ivanchuk, Vassily (2751)"] [Result "1-0"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. a4 b4 9. d3 d6 10. Nbd2 Be6 11. Bxe6 fxe6 12.Nb3+ Qe8 13. d4 Nd7 14. d5 Nd8 15. dxe6 Nxe6 16. Qd5 Qf7 17. Na5 c5 18. Be3 Nf6 19. Qc4 Nd4 20. Qxf7+ Kxf7 21. Ng5+ Kg6 22. Rac1 Nd7 23. Nh3 Nb6 24. c3 bxc3 25. bxc3 Ne6 26. Ra1 Bd8 27. g3 Kf7 28. f4 exf4 29. gxf4 g6 30. Bf2 Kg8 31. Bg3 Bc7 32. Kg2 Rae8 33. Red1 Rf7 34. Ra2 c4?! (34...h6 35. Rb1 ) 35. Nb7 Nc8 36. Rb2 Nb6 37. Rb4 Nc5?! ( 37...a5 38. Nxa5 Nc5 39. Ng5 Rd7 40. Nxc4 Nbxa4 41. e5 Nxc3 42. Nxd6 Red8 43. Rdd4 Bxd6 44. Rxd6 Rxd6 45. exd6 ) 38. Nxd6 Bxd6 39. Rxd6 Nbxa4 40. Ng5 Rfe7?! ( 40...Rg7 41. e5 h6 42. Nf3 Nxc3 43. Rxc4 N3e4 44. Rc6 a5 45. Be1 g5 46. R6xc5 gxf4+ 47. Kf1 Nxc5 48. Rxc5 ) 41. e5 Rc8 42. Bf2 Rec7 43. Rxc4 Kg7 44. Bd4 h6 45. Nf3 Nb2 46. Rxc5 Rxc5 47. Bxc5?! ( 47. e6+ Kf8 ) 47...Rxc5 48. Nh4 g5 49. Rd7+ Kf8 50. Ng6+ Ke8 51. Re7+ Kd8 52. f5 Nd3 53. f6 Rxc3 54. Ra7 ( 54. Ra7 Rc2+ 55. Kf3 ) 1-0 You must activate JavaScript to enhance chess game visualization.

Arhiva partija: Anti-Nimcovićeva Indijska | Gelfand, Boris (2740) – Carlsen, Magnus (2872) | 0-1 | Turnir kandidata, London 2013 | 3. kolo | 17.3.2013

Nimcovićeva Indijska Comments Off

Apr 042013

[Event "London, turnir kandidata 2013"] [Round "3"] [Date "17.03.2013."] [White "Gelfand, Boris (2740)"] [Black "Carlsen, Magnus (2872)"] [Result "0-1"] 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 5. Bg5 c6 6. e3 Qa5 7. cxd5 Nxd5 8. Rc1 Nxc3 9. bxc3 Ba3 10. Rc2 b6 11. Bd3 Ba6 12. O-O Bxd3 13. Qxd3 O-O 14. e4 Rfe8 15. e5 h6 16. Bh4 c5 17. Nd2 cxd4 18. cxd4 Rac8 19. Nc4 Qb5 20. f4 Rc7 21. Qxa3 Rxc4 22. Rxc4 Qxc4 23. Bf2 Qc7 24. Rc1 Qb7 25. Qd6 Nf8 26. g3 Rc8 27. Rxc8 Qxc8 28. d5 exd5 29. Qxd5 g6 30. Kg2 Ne6 31. Qf3 Kg7 32. a3 h5 33. h4 Qc2 34. Qb7 Qa4 35. Qf3 b5 36. f5 gxf5 37. Qxf5 Qxa3 38. Qxh5 a5 39. Qg4+ Kf8 40. h5 (40.Qh5 Ke8 41.Qh8+ Qf8 42.Qh7 Qb4 43.Qh8+ Nf8 44.e6 Qe4+ 45.Kg1 Qb1+ 46.Kg2 fxe6 47.Qh5+ Ng6 48.Qf3 a4 49.h5 Ne7) Qc1 41. Qe4 b4 42. Be3 Qc7 43. Qa8+ Kg7 44. h6+ Kh7 45. Qe4+ Kg8 46. Qa8+ Qd8 47. Qxd8+ (47.Qc6 Qd3 48.Qe8+ Nf8 49.e6 fxe6 50.Qe7 Qe4+ 51.Kf2 Qg6 52.Qd8 b3 53.Qd4 a4 54.Bc1 Qc2+ 55.Kf3 Qc6+ 56.Kf2 Qd7) Nxd8 48. Kf3 a4 49. Ke4 Nc6 50. Bc1 Na5 51. Bd2 b3 52. Kd3 Nc4 53. Bc3 a3 54. g4 Kh7 55. g5 Kg6 56. Bd4 b2 57. Kc2 Nd2 0-1 You must activate JavaScript to enhance chess game visualization.

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