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| Larry Christiansen by © James F. Perry, CC BY-SA 3.0 |
Dziesiątka znakomitych szachistów wystartowała w Mistrzostwach USA seniorów. My trzymamy się określenia Seniorów Starszych.
Po trzech rundach na prowadzeniu są Joel Benjamin (2506) i Igor Novikov (2554) którzy mają na koncie po 2.5 pkt.
Dwa punkty zdobyli Gregory Kaidanov (2549) i Patrick Wolff (2552).
Pozostała szóstka szachistów: Aleksander Shabalov (2528), Larry Christiansen (2567), Dmitry Gurevich (2399), Alexander Goldin (2542), Shelby Getz (2298) i Alex Yermolinsky (2486) mają po punkciku.
"Starsi Panowie" są jak wino, grają bardzo ciekawe szachy. Zobaczcie partię w której Patrick Wolff (rocznik 1968) pokonał Larrego Christiansena (rocznik 1956). Znowu triumfowała młodość😀
A, i zwróćcie uwagę na nowinkę: 11.Sb3!?
[Event "USA-ch Seniors 2020"]
[Site "Saint Louis"]
[Date "2020.10.17"]
[Round "2.1"]
[White "Wolff, Patrick"]
[Black "Christiansen, Larry"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2552"]
[BlackElo "2567"]
[Annotator "TA"]
[PlyCount "133"]
[EventDate "2020.10.17"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
{[%evp
16,133,14,13,28,11,14,-25,0,8,7,12,15,0,18,0,7,-8,12,0,0,0,0,0,10,0,0,0,
14,-46,31,31,26,0,83,60,143,143,143,143,142,100,100,100,195,157,151,154,230,
197,171,151,133,77,223,129,141,124,183,206,205,131,131,138,135,38,38,45,37,37,
32,23,29,32,32,32,31,33,47,26,23,23,204,167,246,97,50,37,44,0,157,165,219,210,
276,258,290,293,316,295,293,291,461,241,302,228,435,399,878,4702,2420,1836,
29962,29963,6117,1824,1240,1181,29979,29980]} 1. e4 g6 2. d4 Bg7 3. Nf3
d6 4.
Bc4 Nf6 5. Qe2 c6 6. e5 Nd5 7. h3 O-O 8. O-O dxe5 {8...Nb6 is the
modern
continuation.} 9. dxe5 Be6 {B04: Alekhine's Defence: 4 Nf3.} 10. Nbd2
$5 {
[%cal Bb1d2,Bd2b3,Bb3c5][%mdl 4] Exploring less charted territory.} Nd7
{[#]}
11. Nb3 $5 $146 {[%mdl 8] New and interesting.} ({Predecessor:} 11. Re1
a5 12.
a3 b5 13. Ba2 Qb6 14. c4 Nc7 15. Nf1 b4 16. Ng3 b3 17. Bb1 {0-1 (41)
Kovalenko,
I (2668)-Anton Guijarro,D (2627) Almaty 2016}) 11... N7b6 {Hoping for
...
Nc3!Black has an edge.} 12. Bd3 Nb4 13. Nc5 Nxd3 14. cxd3 Qc8 15. Bg5
Re8 16.
Rfe1 Nd5 17. Nxe6 Qxe6 18. Qd2 Nc7 19. Bh6 Bh8 20. Qf4 Qd5 21. Ng5 $36
{
[%mdl 2048] White fights for an advantage.} Rac8 22. Re3 (22. Rac1 $11)
22...
f6 ({Better is} 22... Bg7 $15 23. Bxg7 (23. e6 f6 $17) 23... Kxg7) 23.
exf6 $14
Bxf6 24. Rae1 Qf5 (24... Qxa2 $11 {keeps the balance.} 25. R3e2 Qd5)
25. Qg3
Bxg5 (25... Nb5 $14) 26. Bxg5 $16 (26. Qxg5 $6 Qxg5 27. Bxg5 Nd5 $14)
26... Nd5
27. Re6 Rcd8 28. a3 Rd7 29. h4 Rf8 (29... h5 $16 {was worth a try.})
30. R6e5 (
30. Bxe7 Nxe7 31. Rxe7 Rxd3 $14) 30... Qf7 {[#]} 31. h5 $1 {[%mdl 512]}
Nf4 (
31... Kh8 $16) (31... gxh5 32. Bxe7+) 32. hxg6 (32. Bxe7 Nxh5 33. Qh4
Re8 $14)
({Weaker is} 32. Rxe7 Rxe7 33. Bxe7 (33. Rxe7 Qxe7 {[%mdl 64] Remove
Defender}
34. Bxe7 Ne2+ {[%mdl 64] Double Attack} 35. Kh2 Nxg3 $11) 33... Nxh5
$14) 32...
Nxg6 33. Bh6 Rfd8 34. R1e3 (34. R5e3 $142) 34... Qf6 (34... Qb3 $16)
35. Re6 ({
White should try} 35. Bg5 $18 Qg7 36. Re6) 35... Qf5 36. Rxe7 Rxe7
(36... Qh5
$16) 37. Rxe7 $18 Qh5 38. Bd2 Qd1+ 39. Be1 Rxd3 {[#]} 40. Qb8+ (40. f3
$1 $16)
40... Rd8 $14 41. Re8+ Rxe8 42. Qxe8+ Kg7 43. Qe4 h5 44. Kh2 Qd6+ 45.
g3 h4 46.
Bc3+ Kh7 47. Qf5 hxg3+ 48. fxg3 {aiming for Qf7+.} c5 $2 (48... Kh6
$11) 49.
Kh3 b5 (49... Kh6 $142) 50. Kg4 (50. Qf7+ $18 Kh6 51. b3 (51. Qxa7 Qe6+
52. Kh2
Qe2+ 53. Kg1 Qe3+ 54. Kh2 Qf2+ 55. Kh3 Qf5+ 56. Kg2 Qc2+ 57. Kh1 Qd1+
58. Kh2
Qe2+ 59. Kh3 Qf1+ 60. Kh2 Qf2+ 61. Kh3 Qf1+ 62. Kh2 Qf2+ $11)) 50...
Qd1+ 51.
Kg5 {[%csl Gg5][%cal Rf5g6]} Qd8+ 52. Kh5 {[%csl Gh5][%cal Rf5g6]} Qe8
$2 {
White stays focused until the end.} (52... Qd1+ $11 53. Kg5 Qd8+ 54.
Kg4 Qd1+
55. Qf3 (55. Kg5 Qd8+ $14) 55... Qd7+ 56. Qf5 Qd1+) 53. Kg4 $16 {Qh5+
is the
strong threat.} Qe2+ {[#]} (53... b4 {is a better defense.}) 54. Kh3 $1
$18 {
Qf7+ would kill now.} Qe8 55. Qxc5 Qe6+ 56. g4 Nf4+ 57. Kh4 Ng6+ 58.
Kg3 a6 (
58... Qf7 $142 59. Qg5 a6) 59. Qf5 (59. Qa7+ $142 Qe7 60. Qxe7+ (60.
Qxa6 Qe3+
61. Kh2 Qf2+ 62. Kh1 Qh4+ 63. Kg2 Qxg4+ 64. Kf2 Qf4+ 65. Kg2 Qg4+ 66.
Kf1 Qf3+
67. Ke1 Qh1+ 68. Kd2 Qd5+ 69. Ke1 Qh1+ 70. Kf2 Qh2+ 71. Ke3 Qf4+ 72.
Ke2 Qe4+
73. Kf2 Qf4+ 74. Kg2 Qg5+ 75. Kf1 Qf5+ 76. Ke1 Qe4+ 77. Kf2 Qf4+ $11)
60...
Nxe7 61. Kf4) 59... Qd6+ 60. Kf2 Qh2+ $2 (60... Kg8 61. Qe4 Kf7) 61.
Ke3 Qg3+
$2 (61... Qg1+ 62. Ke4 Qb1+ 63. Kd5 Qxf5+ 64. gxf5 Nh4) 62. Ke4 {White
threatens Qh5+ and mate.} Qg2+ 63. Kd4 Qg1+ 64. Kd5 Qg2+ 65. Kc5 {White
wants
to mate with Qh5+.} Qg1+ 66. Kb4 {Intending Qf7+ and mate.} a5+ 67.
Kxb5 {
Av CentiPawn Loss W=15/B=388. Weighted=-16/197} 1-0
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