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============================== My email: jotes@go2.pl



Superultra 2.1 JA - new version chess engine

on

Superultra (NNUE)
Rating Chess Engines Diary CEDR=3488

Superultra is a UCI compliant chess engine that uses an alpha-beta search framework, various heuristics and optimization techniques, and an efficiently updatable neural network (NNUE) in order to analyze chess positions and calculate moves.

v.2.1:
Major Changes:
Significantly reduced required stack size
Changed all types away from (u)int_fastN_t
Style
Elo (STC 6+0.06)
Score of Superultra-2.1 vs Superultra-2.0: 805 - 676 - 1292  [0.523] 2773
...      Superultra-2.1 playing White: 455 - 282 - 650  [0.562] 1387
...      Superultra-2.1 playing Black: 350 - 394 - 642  [0.484] 1386
...      White vs Black: 849 - 632 - 1292  [0.539] 2773
Elo difference: 16.2 +/- 9.4, LOS: 100.0 %, DrawRatio: 46.6 %
SPRT: llr 2.95 (100.0%), lbound -2.94, ubound 2.94 - H1 was accepted
Elo (LTC 30+0.1)
Score of Superultra-2.1 vs Superultra-2.0: 1346 - 1210 - 2837  [0.513] 5393
...      Superultra-2.1 playing White: 797 - 463 - 1436  [0.562] 2696
...      Superultra-2.1 playing Black: 549 - 747 - 1401  [0.463] 2697
...      White vs Black: 1544 - 1012 - 2837  [0.549] 5393
Elo difference: 8.8 +/- 6.4, LOS: 99.6 %, DrawRatio: 52.6 %
SPRT: llr 2.95 (100.3%), lbound -2.94, ubound 2.94 - H1 was accepted

Superultra 2.0 vs other engines:
Booot 7.312/23+123 Games
Slowchess 2.98/17-117 Games
Dragon free6/14-214 Games
Tenax 1.06/12+012 Games
Peacekeeper 3.015.5/12-112 Games
Minic 3.415/10+010 Games
Arasan 24.2.24.5/8+18 Games
Pawn 3.0 JA4.5/8+18 Games
Igel 3.5.5 JA4/8+08 Games
Pawn 3.04/8+08 Games
Texel 1.114/8+08 Games
Altair 7.1.5 JA3.5/8-18 Games
Alexandria 6.02.5/7-27 Games
Eman 9.902.5/7-27 Games
Koivisto 9.22.5/7-27 Games
Lambergar 0.4.16/6+66 Games
Cheng 4.455.5/6+56 Games
Smallbrain 7.04.5/6+36 Games
Peacekeeper 2.304/6+26 Games
Midnight 94/6+26 Games
BlackCore 6.03.5/6+16 Games

Jim Ablett compiles:
Superultra 2.1 JA download


Games
[Event "2024.02.02.NewEnginesTest, Błysk 3.0mi"] [Site "?"] [Date "2024.02.04"] [Round "2.11"] [White "Superultra 2.0"] [Black "Stockfish 20240121"] [Result "1/2-1/2"] [ECO "C67"] [PlyCount "129"] [EventDate "2024.02.02"] [EventType "tourn"] [SourceTitle "Fritz Engine Tournament"] [Source "Doe"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. Nxe5 Nxe5 7. Rxe5+ Be7 8. Bf1 O-O 9. d4 Ne8 10. d5 Bc5 11. Re1 d6 12. Nc3 Bf5 13. Bd3 Bg6 14. Ne4 Nf6 15. Nxc5 dxc5 16. c4 Re8 17. Bf1 Qd6 18. Bd2 c6 19. Rxe8+ Rxe8 20. dxc6 Qxc6 21. f3 Nd7 22. Bc3 f6 23. b3 Qc7 24. Qd5+ Bf7 25. Qd2 Ne5 26. Rd1 Kf8 27. Qd6+ Qxd6 28. Rxd6 Nc6 29. Kf2 Ke7 30. Rd1 Bg6 31. g4 Rd8 32. Rxd8 Nxd8 33. Ke3 b6 34. h4 h5 35. b4 Nf7 36. bxc5 bxc5 37. Kf4 Bb1 38. a3 hxg4 39. fxg4 g5+ 40. hxg5 fxg5+ 41. Kf3 Ke6 42. Bd2 Ne5+ 43. Kg3 Ba2 44. Bxg5 Bxc4 45. Bh3 Bd3 46. Bg2 Be2 47. Bb7 Nxg4 48. Bc8+ Ke5 49. Bxg4 Bxg4 50. Kxg4 c4 51. Kf3 Kd4 52. Bc1 Kd3 53. Bg5 a6 54. Kf4 c3 55. Ke5 Kc4 56. Ke4 Kb3 57. Bc1 Kc2 58. Be3 a5 59. Kd4 Kb2 60. Kc4 Kxa3 61. Kxc3 Ka2 62. Kc2 Ka1 63. Kb3 Kb1 64. Ka3 a4 65. Kxa4 1/2-1/2 [Event "2024.02.02.NewEnginesTest, Błysk 3.0mi"] [Site "?"] [Date "2024.02.04"] [Round "2.12"] [White "Superultra 2.0"] [Black "Chess-System-Tal-2"] [Result "1/2-1/2"] [ECO "C67"] [PlyCount "120"] [EventDate "2024.02.02"] [EventType "tourn"] [SourceTitle "Fritz Engine Tournament"] [Source "Doe"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. Nxe5 Be7 7. Bf1 Nxe5 8. Rxe5 O-O 9. d4 Bf6 10. Re1 Re8 11. Bf4 Rxe1 12. Qxe1 Ne8 13. c3 d5 14. a4 a5 15. Bd3 g6 16. Nd2 Ng7 17. Nf3 Bf5 18. Bxf5 Nxf5 19. h3 c6 20. Qd2 Nd6 21. Re1 Ne4 22. Qd1 Qd7 23. Re2 Re8 24. Ne1 Ng5 25. Nd3 Rxe2 26. Qxe2 Ne6 27. Bh6 Be7 28. Ne5 Qd8 29. Qf3 Bf6 30. Ng4 Be7 31. g3 Ng7 32. Ne5 Qe8 33. Nd3 Qd7 34. Kg2 Qd8 35. Kf1 Qd7 36. Kg2 Qd8 37. Qe2 Ne6 38. Kg1 Bd6 39. h4 Qe7 40. Qf3 Qd8 41. h5 Qb6 42. Qd1 Qd8 43. Qg4 Qf6 44. Be3 Qg7 45. Bd2 gxh5 46. Qxh5 Qg6 47. Qf3 Kg7 48. Kg2 Bc7 49. Bf4 Nxf4+ 50. Nxf4 Bxf4 51. Qxf4 Qb1 52. Qg5+ Kf8 53. Qd2 Kg7 54. Qf4 Kg6 55. Qd6+ Kg7 56. g4 h6 57. Qe5+ Kg6 58. Qd6+ Kg7 59. Qe5+ Kg6 60. Qd6+ Kg7 1/2-1/2 [Event "2024.02.02.NewEnginesTest, Błysk 3.0mi"] [Site "?"] [Date "2024.02.04"] [Round "2.13"] [White "Critter 1.6a"] [Black "Superultra 2.0"] [Result "0-1"] [ECO "D39"] [PlyCount "84"] [EventDate "2024.02.02"] [EventType "tourn"] [SourceTitle "Fritz Engine Tournament"] [Source "Doe"] 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 dxc4 5. e4 Bb4 6. Bg5 c5 7. Bxc4 h6 8. Bxf6 Qxf6 9. e5 Qd8 10. d5 exd5 11. Bxd5 Nc6 12. O-O Bxc3 13. Bxc6+ bxc6 14. bxc3 O-O 15. Qa4 Qd3 16. Rfd1 Qxc3 17. Rac1 Qb2 18. Rxc5 Be6 19. Nd4 Rfd8 20. g3 Bh3 21. Rc4 c5 22. Rxc5 Rab8 23. Rc4 a5 24. Re1 Rb4 25. Rxb4 axb4 26. Nf3 Qc3 27. Rd1 Rxd1+ 28. Qxd1 Be6 29. Kg2 Bxa2 30. h3 Be6 31. Nd4 Bd5+ 32. Kh2 b3 33. Nf5 Qf3 34. Qxd5 Qxf2+ 35. Kh1 Qf1+ 36. Kh2 Qe2+ 37. Kg1 b2 38. Qb7 Qe1+ 39. Kg2 b1=Q 40. Qxb1 Qxb1 41. g4 Qb2+ 42. Kf3 Qxe5 {(g6)} 0-1 [Event "2024.02.02.NewEnginesTest, Błysk 3.0mi"] [Site "?"] [Date "2024.02.04"] [Round "2.14"] [White "Superultra 2.0"] [Black "Arasan 24.1"] [Result "1/2-1/2"] [ECO "C54"] [PlyCount "58"] [EventDate "2024.02.02"] [EventType "tourn"] [SourceTitle "Fritz Engine Tournament"] [Source "Doe"] 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. O-O O-O 7. h3 a5 8. Nbd2 Be6 9. a4 h6 10. Re1 Ba7 11. Ra3 Bc5 12. Ra1 Bxc4 13. Nxc4 Re8 14. Qb3 Qd7 15. Be3 Bxe3 16. Rxe3 Nd8 17. Ncd2 Ne6 18. d4 Nf4 19. Rd1 Rad8 20. Qc2 N6h5 21. Nf1 Nxg2 22. Kxg2 Nf4+ 23. Kg1 Qxh3 24. Ne1 Qg4+ 25. Ng3 h5 26. Kh2 Qh3+ 27. Kg1 Qg4 28. Kh2 Qh4+ 29. Kg1 Qg4 1/2-1/2 [Event "2024.02.02.NewEnginesTest, Błysk 3.0mi"] [Site "?"] [Date "2024.02.04"] [Round "2.15"] [White "Arcanum 1.12"] [Black "Superultra 2.0"] [Result "0-1"] [ECO "D02"] [PlyCount "144"] [EventDate "2024.02.02"] [EventType "tourn"] [SourceTitle "Fritz Engine Tournament"] [Source "Doe"] 1. d4 Nf6 2. Bf4 d5 3. e3 e6 4. Nf3 c5 5. a4 Bd6 6. dxc5 Bxc5 7. h3 Nc6 8. c3 Bd6 9. Qb3 Bxf4 10. exf4 O-O 11. g3 Qc7 12. Nbd2 e5 13. fxe5 Nxe5 14. Be2 Re8 15. Nd4 h5 16. Nb5 Qe7 17. Qc2 h4 18. gxh4 Ng6 19. Nf3 Nf4 20. Nbd4 Nxe2 21. Nxe2 Bf5 22. Qd2 Qe4 23. Qe3 d4 24. Qxe4 Bxe4 25. O-O dxc3 26. Nxc3 Bxf3 27. Rfe1 a6 28. Kh2 Kh7 29. b4 Rac8 30. Rxe8 Nxe8 31. Ra3 Bc6 32. Ra1 Nf6 33. a5 Bd7 34. Na4 Bxa4 35. Rxa4 Rc4 36. Ra2 Rxb4 37. Re2 Rxh4 38. Re7 Kg6 39. Rxb7 Ra4 40. Rb1 Rxa5 41. Re1 Nh5 42. Re3 Ra2 43. Rf3 a5 44. Kg2 f5 45. Re3 Kg5 46. Rb3 Kh4 47. Rf3 g6 48. Kh2 Rb2 49. Kg1 a4 50. Ra3 Rb4 51. Kh2 g5 52. Ra1 Nf4 53. Ra3 Rb2 54. Rxa4 Rxf2+ 55. Kg1 Kg3 56. Ra3+ Rf3 57. Rxf3+ Kxf3 58. Kf1 Nxh3 59. Ke1 g4 60. Kd2 Kg2 61. Kc3 g3 62. Kb3 Ng5 63. Kb4 Kh3 64. Kc5 g2 65. Kd6 f4 66. Ke5 f3 67. Kd6 f2 68. Ke7 g1=Q 69. Kd6 f1=Q 70. Kc7 Qc5+ 71. Kd8 Qff5 72. Ke8 Qfc8# 0-1 [Event "2024.02.03.LucasLenovo"] [Site "Lucas Chess R 2.11"] [Date "2024.02.03"] [Round "?"] [White "Superultra 2.0"] [Black "Texel 1.11"] [Result "1/2-1/2"] [ECO "B48"] [WhiteElo "3494"] [BlackElo "3492"] [PlyCount "62"] [EventDate "2024.??.??"] [EventType "tourn"] [EventRounds "46"] [EventCategory "46"] 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Qc7 6. Be3 a6 7. Nxc6 bxc6 8. Qf3 Nf6 9. Be2 Rb8 10. O-O-O Qa5 11. Rd3 Qb4 12. b3 a5 13. Qf4 Ra8 14. Kb2 a4 15. e5 Qxf4 16. Bxf4 Nd5 17. Nxd5 exd5 18. Rg3 h5 19. h4 g6 20. Bg5 axb3 21. axb3 Ba3+ 22. Kc3 d6 23. Bf6 Rf8 24. b4 d4+ 25. Kxd4 Bxb4 26. exd6 Bxd6 27. Rb3 Kd7 28. Bc4 Ra5 29. Kc3 Ba6 30. Bxa6 Rxa6 31. Rb7+ Kc8 {Werdykt} 1/2-1/2 [Event "2024.02.03.LucasLenovo"] [Site "Lucas Chess R 2.11"] [Date "2024.02.03"] [Round "?"] [White "Superultra 2.0"] [Black "Midnight 9"] [Result "1-0"] [ECO "C01"] [WhiteElo "3494"] [BlackElo "3450"] [PlyCount "125"] [EventDate "2024.??.??"] [EventType "tourn"] [EventRounds "46"] [EventCategory "46"] 1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Nf6 5. Bd3 Bd6 6. Qe2+ Be7 7. O-O O-O 8. Re1 Re8 9. Bg5 Nbd7 10. Nc3 c6 11. Bh4 Qb6 12. Rab1 Bd6 13. Qxe8+ Nxe8 14. Rxe8+ Bf8 15. Be7 f6 16. Ne4 Qc7 17. Re1 a5 18. Nd6 g6 19. Re6 c5 20. Bxf8 Nxf8 21. Rxf6 Qg7 22. Rfxf8+ Qxf8 23. Rxf8+ Kxf8 24. dxc5 Ke7 25. Nd4 b6 26. Nxc8+ Rxc8 27. cxb6 Kd6 28. Kf1 Rb8 29. a4 Rxb6 30. Bb5 Rb8 31. h4 h6 32. g3 g5 33. h5 Kc5 34. c3 Kb6 35. Ke2 Rb7 36. b4 Rg7 37. bxa5+ Kxa5 38. Nf5 Rc7 39. Kd3 g4 40. Nxh6 Rh7 41. Nxg4 Rxh5 42. Kd4 Rh8 43. Ne5 Kb6 44. Kxd5 Rh2 45. f4 Rh3 46. g4 Rxc3 47. f5 Rc8 48. f6 Ka5 49. Nc6+ Kb6 50. f7 Rh8 51. Ke6 Rh6+ 52. Ke7 Rh8 53. f8=Q Rxf8 54. Kxf8 Kc5 55. g5 Kd5 56. g6 Ke6 57. g7 Kf5 58. g8=Q Kf4 59. Qb3 Kg4 60. Be2+ Kh4 61. Kf7 Kg5 62. Qg3+ Kh6 63. Qg7# {Mat} 1-0 [Event "2024.02.03.LucasLenovo"] [Site "Lucas Chess R 2.11"] [Date "2024.02.03"] [Round "?"] [White "Puffin 2.0"] [Black "Superultra 2.0"] [Result "0-1"] [ECO "B31"] [WhiteElo "2400"] [BlackElo "3494"] [PlyCount "126"] [EventDate "2024.??.??"] [EventType "tourn"] [EventRounds "46"] [EventCategory "46"] 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. h3 e5 6. Re1 Nge7 7. d3 d6 8. Bg5 a6 9. Bc4 b5 10. Bb3 h6 11. Bd2 O-O 12. Nc3 Kh7 13. a3 f5 14. exf5 gxf5 15. a4 b4 16. Nd5 Ng6 17. a5 Rb8 18. Ba2 Nxa5 19. c3 b3 20. Bb1 Nc6 21. c4 Bb7 22. Ra3 Nce7 23. Ba5 Qd7 24. Nb6 Qc6 25. Re3 Rg8 26. Rxb3 Bf6 27. Qf1 Kh8 28. Bc2 Nf4 29. g3 Nh5 30. Qd1 Nxg3 31. fxg3 Rxg3+ 32. Kf2 Rbg8 33. Nd5 Nxd5 34. cxd5 Qxd5 35. Rxb7 Rg2+ 36. Ke1 Rg1+ 37. Nxg1 Rxg1+ 38. Kd2 Rxd1+ 39. Bxd1 Qxb7 40. Kc2 f4 41. Re4 d5 42. Re1 e4 43. Bc3 Bxc3 44. bxc3 Kg7 45. Be2 exd3+ 46. Bxd3 c4 47. Bf5 Kf6 48. Bg4 Qb3+ 49. Kd2 Qb2+ 50. Kd1 Qxc3 51. Re2 h5 52. Bc8 f3 53. Rd2 Ke5 54. Bb7 Qb3+ 55. Kc1 Qxb7 56. h4 Qb3 57. Rc2 Qxc2+ 58. Kxc2 f2 59. Kd2 f1=Q 60. Ke3 d4+ 61. Kd2 Qg2+ 62. Kd1 d3 63. Kc1 Qc2# {Mat} 0-1

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