6th Annual ACCA Pam-Am CCC - annotated Arasan games rnds 4-6

[jdart]

[Event "6th Annual ACCA Americas' Computer Chess Chmp."]
[Site "80.100.28.169"]
[Date "2011.11.13"]
[Round "4"]
[White "Arasan 13.3"]
[Black "Telepath"]
[Result "1-0"]
[ECO "E15"]
[WhiteElo "1700"]
[BlackElo "1496"]
[Annotator "Dart,Jon"]
[PlyCount "99"]
[EventDate "2011.??.??"]
[TimeControl "2700+10"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Be7 7. Bg2 c6 8. Bc3
d5 9. Nbd2 Nbd7 10. O-O O-O 11. Re1 c5 12. e4 dxe4 13. Nxe4 Nxe4 14. Rxe4 Bb7
15. Re2 Nf6 16. Qc2 (16. dxc5 Bxc5 17. Qc2 Bxf3 18. Bxf3 Rc8 19. Rd1 Qe7 20.
Kg2 a5 21. Qb2 Rfd8 22. Rxd8+ Rxd8 23. Rd2 Rxd2 24. Bxd2 e5 25. Bc3 e4 26. Be2
h6 27. Qc1 Qd6 28. Qd1 Qxd1 29. Bxd1 Kf8 30. Bc2 Ke7 31. f3 exf3+ 32. Kxf3 h5
33. h3 g6 34. Bd2 Ke6 35. Bf4 Bd6 36. Bc1 Nd7 37. Be4 Ne5+ 38. Ke2 f6 39. Bb2
g5 40. Bb7 f5 41. Bc8+ Kf6 42. Bd4 {1/2-1/2 Novikov,I (2614)-Prokopchuk,E
(2470)/Koszalin 1999/CBM 073}) 16... cxd4 17. Rd1 Bc5 18. Nxd4 Bxg2 19. Kxg2
Qc7 20. Nf3 Be7 21. Ng5 g6 22. Bb2 Ng4 $2 23. Ne4 $16 f5 24. h3 Nh6 $4 ({Black
should block the long diagonal with} 24... Nf6) 25. Qc3 $1 {Black must lose
material to counter the mate threat.} e5 26. Rd7 $1 Bb4 27. Rxc7 Bxc3 28. Nxc3
Rf7 29. Nd5 Rxc7 30. Nxc7 Rc8 31. Bxe5 Rd8 32. Bb2 Nf7 33. Re7 h6 34. Nd5 Ra8
35. Rb7 Kf8 36. Nf4 g5 37. Ng6+ Kg8 38. Ne7+ Kf8 39. b4 f4 40. c5 bxc5 41. Ng6+
Kg8 42. bxc5 Kh7 43. Nh8 Kg8 44. Nxf7 h5 45. Nh6+ Kf8 46. Bg7+ Ke8 47. Nf5 Kd8
48. Nd6 f3+ 49. Kg1 a5 50. Bf6# 1-0

[Event "6th Annual ACCA Americas' Computer Chess Chmp."]
[Site "80.100.28.169"]
[Date "2011.11.13"]
[Round "5"]
[White "Arasan 13.3"]
[Black "RedQueen"]
[Result "1-0"]
[ECO "E64"]
[WhiteElo "1700"]
[BlackElo "1745"]
[Annotator "Dart,Jon"]
[PlyCount "98"]
[EventDate "2011.??.??"]
[TimeControl "2700+10"]

1. Nf3 c5 2. c4 Nf6 3. Nc3 g6 4. d4 Bg7 5. d5 O-O 6. g3 d6 7. Bg2 Bf5 (7... Na6
) (7... e6) 8. Nh4 Bd7 9. Qc2 (9. O-O Na6 10. e4 Rb8 11. f4 b5 12. e5 Ne8 13.
cxb5 Nac7 14. a4 dxe5 15. fxe5 Bxe5 16. Bh6 Bg7 17. Bxg7 Kxg7 18. Ne4 a6 19.
Nxc5 axb5 20. a5 b4 21. a6 Nd6 22. Nf3 Bb5 23. Rf2 Kg8 24. Ne5 Nc4 25. Nxc4
Bxc4 26. a7 Rc8 27. d6 exd6 28. Ne4 d5 29. Nf6+ Kh8 30. b3 Bb5 31. Qc1 Ne8 32.
Qxc8 Qxc8 33. a8=Q {1-0 Ivkov,B-Doda,Z/Havana 1965/MCD}) 9... Na6 10. Bd2 Rb8
11. O-O {This is an unusual Benoni type opening where White has omitted e4
(although that is played eventually).} b5 $5 12. cxb5 Bxb5 13. Nxb5 Rxb5 14. b3
Nd7 15. Rad1 Nb4 16. Qe4 f5 17. Qb1 Nf6 18. Bg5 Ra5 (18... Qa5 $142) 19. a4 Qd7
20. e4 {finally!} fxe4 21. Bxe4 Qb7 22. Bg2 $1 {score +0.80} Qc8 23. Rfe1 Rf7
24. Bd2 $1 {score +0.96} Qf8 25. f4 (25. Bh3 $5 {threatening Be6}) 25... Kh8
26. f5 $1 $18 gxf5 27. Qxf5 $18 Bh6 28. Qh3 Kg8 29. Bc3 Bg5 30. Nf5 Ra6 31. Re6
Rb6 32. Rf1 Rb7 33. Kh1 c4 34. Bxf6 Rxf6 35. Qg4 cxb3 36. Nxe7+ Kh8 37. Qd4 Nc2
38. Qb2 Rxe7 39. Rfxf6 Bxf6 40. Rxf6 Re1+ 41. Bf1 Qxf6 42. Qxf6+ Kg8 43. Kg1
Ne3 44. Qd8+ Kf7 45. Qc7+ Kg8 46. Kf2 Rxf1+ 47. Kxe3 Re1+ 48. Kf2 Re4 49. Qxd6
Re8 1-0

[Event "6th Annual ACCA Americas' Computer Chess Chmp."]
[Site "80.100.28.169"]
[Date "2011.11.13"]
[Round "6"]
[White "Thinker"]
[Black "Arasan 13.3"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2029"]
[BlackElo "1700"]
[Annotator "Dart,Jon"]
[PlyCount "110"]
[EventDate "2011.??.??"]
[TimeControl "2700+10"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8.
Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 Bg5 12. Nc2 O-O (12... Ne7 {is popular
recently}) (12... Rb8 13. a4 bxa4 14. Ncb4 Nxb4 15. cxb4 O-O 16. Rxa4 a5 17. b5
Bd7 18. Nc3 Kh8 19. Bc4 Qb6 20. O-O $11 {Jakovenko,D (2730)-Radjabov,T (2733)/
Bursa 2010/CBM 134 (59)}) 13. a4 bxa4 14. Rxa4 a5 15. Bc4 Rb8 16. b3 Kh8 17.
Nce3 Ne7 {not very common.} (17... g6) (17... Be6) 18. O-O Nxd5 {first move
out of book.} 19. Nxd5 f5 (19... Bd7 20. Ra2 f5 21. exf5 Bxf5 22. Qe2 Rc8 23.
Rfa1 Rc5 24. b4 axb4 25. cxb4 Rc8 26. b5 Be6 27. Ra6 Rc5 28. Nb6 d5 29. Ra8
dxc4 30. Rxd8 Rxd8 31. Na4 Rxb5 32. Nc3 Rb6 33. Qxe5 Bf6 34. Qe1 Bf5 35. h3 h6
36. Kh2 Re6 37. Qc1 Rd3 38. Ra3 Bg5 39. f4 Bh4 40. g4 Re1 41. Qb2 Bd7 42. Ra6
Ree3 43. Ne2 c3 44. Ra8+ Kh7 45. Qc2 Rxh3+ {0-1 Bakr Jwan,J (2360)-Mamedov,R
(2564)/Adana 2006/CBM 115 ext}) 20. Bd3 Bd7 21. Ra1 Be6 22. Bc2 Rb5 23. c4 Rc5
24. Nc3 f4 25. Qf3 Qd7 26. Bd1 Bd8 27. Qd3 Rf6 28. Bf3 Rh6 29. Rfd1 Rc6 30. Nb5
Bg8 31. h3 Qb7 32. c5 d5 33. Nd6 Rhxd6 $2 {Black gets a pawn + minor for the
Rook but doesn't have full compensation I think.} (33... Qb8 $142) 34. cxd6 d4
35. Rdc1 $1 {Arasan expected Rac1.} Rxd6 {Arasan failed low here, with a score
of -0.68.} 36. Rc5 Qe7 37. Qb5 Rb6 38. Qxa5 Rb7 39. Qa8 Qxc5 40. Qxb7 Qc3 41.
Rf1 d3 42. Qb5 Qd4 43. Qe8 $18 Bb6 44. b4 Qd6 45. Bd1 Qxb4 46. Qxe5 Qd4 47. Qb8
d2 48. Bb3 Qd8 49. Qxd8 Bxd8 50. Bxg8 Kxg8 51. Rd1 Ba5 52. Kf1 Kf7 53. Ke2 Kf6
54. Rxd2 $3 {exchanging into a won pawn endgame.} Bxd2 55. Kxd2 Ke5 1-0 {Arasan
resigns}