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Subject: Rebel8 and Rebel9 on SSDF.

Author: Ed Schröder

Date: 09:52:18 12/08/97


>Posted by Howard Exner on December 08, 1997 at 03:07:29:

>Thanks again for the games. Out of curiousity did Bo Aurell
>save the positions or make a note of which games where Rebel 9
>could not take advantage in the endgame?

>I did come across one game of interest of Junior 4.0(P-100)
>vs Rebel 9(200MMX) where the game was adjudicated a win
>for Junior. Here is the position at the end of the game:

>1k6/8/P1K2p2/8/3BP3/6b1/8/8 b - - id"Junior4 P100 - Rebel9 P200MMX"

>This is one of those infamous bishop endings where the
>drawing theme of the wrong colored rook pawn might emerge.
>It would have been interesting to let this one play out to
>a decisive win (if one can be found by the machines).

True, white will have a hard time to win this game. Only Amir can
say if Junior is able to win this game.

But there is more...

From the games from the SSDF site Jeroen reported the following 6
incomprehensible games from Rebel8 and Rebel9 which Jeroen and I
were unable to reproduce.

-----------------------------------------------------------

[Event "?"]
[Site "?"]
[Date "1997.??.??"]
[Round "?"]
[White "Rebel9 P200MMX"]
[Black "Rebel8 P100"]
[Result "1-0"]
[WhiteElo "?"]
[BlackElo "?"]
[ECO "D11"]

1. d4 d5 2. c4 c6 3. Nf3 e6 4. e3 Nf6 5. Nc3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5
8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Ng4 12. Qa4 Bb7 13. Nd6+ Bxd6
14.
exd6 Qb6 15. Qxd4 Nge5 16. Qxb6 Nxd3+ 17. Kd2 Nxb6 18. Kxd3 Rd8 19. Bf4
f6 20. Ke2 e5 21. Be3 Nd5 22. Bc5 Nf4+ 23. Kf1 Rc8 24. Be3 Kd7 25. Bxf4
exf4 26. Nd4 g6 27. f3 Kxd6 28. Kf2 Rhe8 29. g3 fxg3+ 30. hxg3 Re7 31.
Rad1 Bd5 32. Rd2 Rce8 33. b4 Kc7 34. a4 Kb7 35. b5 Rc8 36. Rb1 Rc3 37.
a5 Rd7 38. Rdb2 Rc5 39. bxa6+ Kxa6 40. Rb8 f5 41. R1b2 Bb7 42. Rb6+ Ka7
43. R8xb7+ Rxb7 44. Nc6+ Rxc6 45. Rxc6 Rb5 46. Rc7+ Ka6 47. Rxh7 Rc5 48.
Rg7 Rc6 49. Kg2 Kxa5 50. f4 Kb5 51. Kh3 Kc5 52. Kh4 Kd4 53. Kg5 Rc5 54.
Rxg6 Ke4 55. g4 fxg4+ 56. Kxg4 Rc2 57. Re6+ Kd5 58. f5 Rf2 59. Re1 Kd4
60. Kg5 Kd5 61. f6 Kd6 62. Kg6 Rg2+ 63. Kf7 Kd7 64. Kf8 Rf2 65. f7 1-0

Nowhere in the Rebel9 book you will find 13.Nd6+
The Rebel9 book continues with 13.Nbxd4

-----------------------------------------------------------------

[Event "?"]
[Site "?"]
[Date "1997.??.??"]
[Round "?"]
[White "Rebel8 P100"]
[Black "Rebel9 P200MMX"]
[Result "1-0"]
[WhiteElo "?"]
[BlackElo "?"]
[ECO "D10"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Nf3 Nc6 6. Bf4 Bf5 7. e3 e6
8. Bb5 Bd6 9. Ne5 Rc8 10. Qa4 Bxe5 11. dxe5 Nd7 12. Bxc6 Rxc6 13. Qxa7
Nc5 14. O-O O-O 15. Ne2 Qb6 16. Qxb6 Rxb6 17. b3 Nd3 18. Nd4 Bg6 19. Bg3
Ra6 20. f4 Rc8 21. Bh4 Raa8 22. a4 Rc3 23. Be1 Nxe1 24. Rfxe1 Rac8 25.
g4 Bd3 26. f5 exf5 27. gxf5 g6 28. f6 h6 29. Kf2 g5 30. a5 Kh7 31. b4
Kg6
32. b5 Ra8 33. Red1 h5 34. Ra2 Bc4 35. Ra4 Rb3 36. e4 Bxb5 37. Nxb5 Rxb5
38. exd5 Rd8 39. Rad4 Kf5 40. Re1 Rbxd5 41. Rxd5 Rxd5 42. e6 fxe6 43. f7
Rd8 44. Rb1 Kf6 45. Rxb7 Kg7 46. a6 Rd2+ 47. Kf3 Rxh2 48. a7 Ra2 49.
f8=Q+
Kxf8 50. Rb8+ Kf7 51. a8=Q Rxa8 52. Rxa8 Kf6 53. Ke4 Kf7 54. Ke5 g4 1-0

Nowhere in the Rebel9 book you will find 8..Bd6
The Rebel9 book continues with 8..Nd7

----------------------------------------------------------------------

[Event "?"]
[Site "?"]
[Date "1997.??.??"]
[Round "?"]
[White "Rebel8 P100"]
[Black "Rebel9 P200MMX"]
[Result "1/2-1/2"]
[WhiteElo "?"]
[BlackElo "?"]
[ECO "B17"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Ng3 Nb6 7. Be2
Bg4 8. O-O e6 9. h3 Bxf3 10. Bxf3 Be7 11. a4 O-O 12. a5 Nbd5 13. c4 Nb4
14. Ne2 b6 15. Bg5 bxa5 16. Qa4 Rb8 17. Rfd1 Nd7 18. Bxe7 Qxe7 19. Qxa5
a6 20. Qc7 Rbc8 21. Qg3 e5 22. Ra5 Rce8 23. b3 f5 24. dxe5 Nxe5 25. Bh5
g6 26. Nf4 c5 27. Bxg6 Nxg6 28. Nxg6 hxg6 29. Qxg6+ Qg7 30. Qxg7+ Kxg7
31. Rxc5 Kg6 32. Ra5 Rf6 33. Ra4 Rb8 34. Kh2 f4 35. Rd7 Nc6 36. Rd3 Ne5
37. Rc3 Rd8 38. Ra2 Rd1 39. c5 Kg5 40. f3 Re6 41. g3 fxg3+ 42. Kxg3 Kf5
43. h4 Rg6+ 44. Kf2 Rc6 45. Kg3 Rd3 46. Rxd3 Nxd3 47. Ra4 Nxc5 48. Ra5
Ke6 49. b4 Nb3 50. Rg5 Nd4 51. f4 Kf7 52. Rd5 Rg6+ 53. Kf2 Nb5 54. h5
Rd6
55. Rc5 Rb6 56. Rd5 Nc3 57. Ra5 Nb5 58. Kg3 Kg7 59. Kh4 Kh6 60. Kg4 Nd4
61. Re5 Nc2 62. Re8 Nxb4 63. Rh8+ Kg7 64. Rd8 Kf6 65. Rf8+ Ke7 66. Rg8
Kf7 67. Ra8 Nc6 68. Kg5 a5 69. f5 Rb8 70. Ra6 Rg8+ 71. Kf4 Rc8 72. h6
Ke7
73. Kg5 Kd6 74. Rb6 Rg8+ 75. Kf6 Kc7 76. Rb5 Rg3 77. h7 Rh3 78. Kg7 Rg3+
79. Kf7 Rh3 80. Kg8 Rg3+ 81. Kf7 Rh3 82. Kg7 Rg3+ 83. Kf6 Rh3 84. Kg7
1/2-1/2

Nowhere in the Rebel9 book you will find 6..Nb6?
The Rebel9 book continues with 6..e6

---------------------------------------------------------------------

Sofar 3 examples for Rebel9.

Question is which book SSDF used for Rebel 9.0. Certainly not the
Rebel9 standard book.

But also with the games of Rebel8 something is wrong.

Also 3 examples...

--------------------------------------------------------------------

[Event "?"]
[Site "?"]
[Date "1997.??.??"]
[Round "?"]
[White "Rebel9 P200MMX"]
[Black "Rebel8 P100"]
[Result "1-0"]
[WhiteElo "?"]
[BlackElo "?"]
[ECO "D12"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5 5. cxd5 cxd5 6. Qb3 b6 7. Nc3 e6
8. Bb5+ Nbd7 9. Ne5 Bg6 10. e4 a6 11. Bc6 dxe4 12. Bg5 Ra7 13. Qa4 e3
14.
fxe3 Be7 15. Nb5 Bc2 16. b3 h6 17. Nxa7 1-0

Nowhere in the Rebel8 book you will find 4..Bf5 on active.
The same applies for 6.. b6??
The Rebel8 book continues with 6..Qc7

--------------------------------------------------------------------

[Event "?"]
[Site "?"]
[Date "1997.??.??"]
[Round "?"]
[White "Rebel9 P200MMX"]
[Black "Rebel8 P100"]
[Result "1/2-1/2"]
[WhiteElo "?"]
[BlackElo "?"]
[ECO "C07"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qc5 7. O-O
Bd7 8. b4 Qc7 9. b5 Bb4 10. Bb2 Ne7 11. Bxd4 O-O 12. Be5 Bd6 13. Bxd6
Qxd6
14. Ne4 Qc7 15. Qd3 a6 16. a4 Rd8 17. Qd6 Qxd6 18. Nxd6 axb5 19. Nxb7
Rc8
20. Bxb5 Rxc2 21. Nd6 Rc5 22. Nd2 Nd5 23. N2e4 Rc7 24. Rfb1 Bxb5 25.
axb5
Rca7 26. Rxa7 Rxa7 27. Rc1 g6 28. Nc4 Nd7 29. Ned6 Kg7 30. g3 f5 31. Kg2
Ra8 32. Rb1 N5b6 33. Nxb6 Nxb6 34. Rc1 Kf6 35. Rc6 Rb8 36. Kf3 Nd5 37.
Rc5 Ke7 38. Nc4 Kd7 39. Na3 Kd6 40. Rc1 e5 41. Ke2 e4 42. Rc6+ Kd7 43.
Rc5 Nc7 44. Re5 Ne6 45. Rd5+ Ke7 46. Rd1 Rb7 47. Rb1 Kd6 48. Rb4 Kc5 49.
Rc4+ Kd5 50. Rb4 Nc7 51. Ke3 Kc5 52. Rc4+ Kb6 53. g4 fxg4 54. Rxe4 Ra7
55. Nc4+ Kxb5 56. Rxg4 Ne6 57. Re4 Nc5 58. Rh4 Re7+ 59. Kf3 Nd3 60. Kg3
Rd7 61. Ne3 Rf7 62. f3 Ne5 63. Rf4 Rd7 64. Re4 Nd3 65. f4 Nc5 66. Re8
Ra7
67. Kf3 Kc6 68. f5 gxf5 69. Rc8+ Kd6 70. Nxf5+ Kd5 71. Ne3+ Kd4 72. Rd8+
Kc3 73. Nf5 Rf7 74. Kg4 Ne6 75. Rd6 Ng7 76. Ng3 Re7 77. Kg5 Ne8 78. Rd8
Kb4 79. Nf5 Re6 80. Rd7 Nf6 81. Rf7 Ne4+ 82. Kh4 Nf6 83. Ng3 Rd6 84. Kg5
h6+ 85. Kxh6 Ng4+ 86. Kg5 Nxh2 87. Nf5 1/2-1/2

Nowhere in the Rebel8 book you will find 6..Qc5?
The Rebel8 book continues with 6..Qd6

-----------------------------------------------------------------------

[Event "?"]
[Site "?"]
[Date "1997.??.??"]
[Round "?"]
[White "Rebel8 P100"]
[Black "Rebel9 P200MMX"]
[Result "1/2-1/2"]
[WhiteElo "?"]
[BlackElo "?"]
[ECO "B33"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6
8. Nxc6 bxc6 9. O-O-O h6 10. Bh4 Bb7 11. f4 Nxe4 12. Nxe4 Qxh4 13. Nxd6+
Bxd6 14. Qxd6 Qe7 15. Bc4 Qxd6 16. Rxd6 Rd8 17. Rxd8+ Kxd8 18. g3 g5 19.
Rd1+ Ke7 20. Rd3 Rg8 21. Rb3 Bc8 22. Rb8 gxf4 23. gxf4 Kd7 24. Ra8 Rg4
25. Ra7+ Ke8 26. Ra8 Kd7 27. Ra7+ Ke8 28. Ra8 Kd7 1/2-1/2

Nowhere in the Rebel8 book you will find 8.Nxc6
The Rebel8 book continues with 8.0-0-0

So the question arise with which book SSDF tested Rebel8 and Rebel9?
Certainly not the provided commercial books.

I have sent a copy to Tony and Thoralf.
Perhaps they can explain what is wrong.

- Ed Schroder -



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