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Subject: Paradigm changes, Junior-Fruit

Author: Peter Berger

Date: 12:16:55 08/01/05


ROTFL - sorry for the subject line .. - hope I can still post sth of at least
limitted interest.

1.) Toying around with Fruit 2.1 currently - that would be change no 1 - now
there is a free open source amateur engine that is just as strong as the
strongest commercials on ordinary PCs . No, that's no news anymore. But just as
others I had to see it for myself, despite various previous reports.

2.) Second one is about openings. Dann Corbit built an interesting book for
Fruit IMHO. I guess it's completely automated, but he chose a good point to
leave book, usually about 2 or 3 moves before known theory ends, with something
like 10-15 moves of opening theory on average. And in several games Fruit finds
interesting and valid alternatives to grandmaster analysis.

Just a little example ( my sources might be slightly dated as I don't play the
Ruy from either side).

[Event "50 3"]
[Site "Centrino 1.6- PIV 3.2"]
[Date "2005.08.01"]
[Round "11"]
[White "Junior 9.0.0.3"]
[Black "Fruit 2.1"]
[ECO "C80"]
[Result "0-1"]

1. e4 {0s} e5 {+0.01/1 1s} 2. Nf3 {3s} Nc6 {+0.01/1 0s}
3. Bb5 {2s} a6 {+0.01/1 0s} 4. Ba4 {2s} Nf6 {+0.01/1 0s}
5. O-O {3s} Nxe4 {+0.01/1 0s} 6. d4 {2s} b5 {+0.01/1 0s}
7. Bb3 {2s} d5 {+0.01/1 0s} 8. dxe5 {3s} Be6 {+0.01/1 0s}
9. Nbd2 {3s} Nc5 {+0.01/1 0s} 10. c3 {3s} d4 {+0.01/1 0s}
11. Ng5 {3s} dxc3 {+0.01/1 0s} 12. Nxe6 {4s} fxe6 {+0.01/1
0s} 13. bxc3 {4s} Qd3 {+0.01/1 0s} 14. Bc2 {4s} Qxc3
{+0.42/13 1:16m} 15. Nb3 {3s}

A famous line of the Open Ruy known to be busted (11. .. dxc3?!) - that's
Kasparov-Anand, New York PCA WCh (10) 1995, 14. Bc2 is ! and 15. Nb3!! . NCO and
ECO have a look at 15. ...Nxb3 and 15. ...Rd8 and prove a clear white advantage.
Fruit, ever sceptical, just takes on e5 (and how come this move doesn't even get
mentioned?).

[D]r3kb1r/2p3pp/p1n1p3/1pn1P3/8/1Nq5/P1B2PPP/R1BQ1RK1 b kq -

Whatever the absolute thruth, Fruit got very decent compensation for the
exchange in the game and in fact had little trouble to reach a major advantage
against the world champion, who lacked counterplay and pawn levers. Most moves
even looked very obvious. Similar happened in several other Fruit games I have
watched. I am getting more and more sceptical of classical opening books.

--

Unrelated, still .. - Fruit probably blew the huge advantage it reached later
as it allowed transformation to a  drawish endgame.

[D]5b2/8/5k2/p4r2/Bp3K2/2p5/P4P2/4R3 w - -

Here Junior played 49. Kg4 which should be ?? , while 49. Kg3 probably holds. I
can only explain with wrong knowledge about bishop with opposite colour endings,
and it's certainly not the first example from Junior I have seen covering this
theme. I don't think a human would consider giving up the pawn on f2 .

Everything with a huge grain of salt as usual :) .

Peter

[Event "50 3"]
[Site "Centrino 1.6- PIV 3.2"]
[Date "2005.08.01"]
[Round "11"]
[White "Junior 9.0.0.3"]
[Black "Fruit 2.1"]
[ECO "C80"]
[Result "0-1"]

1. e4 {0s} e5 {+0.01/1 1s} 2. Nf3 {3s} Nc6 {+0.01/1 0s}
3. Bb5 {2s} a6 {+0.01/1 0s} 4. Ba4 {2s} Nf6 {+0.01/1 0s}
5. O-O {3s} Nxe4 {+0.01/1 0s} 6. d4 {2s} b5 {+0.01/1 0s}
7. Bb3 {2s} d5 {+0.01/1 0s} 8. dxe5 {3s} Be6 {+0.01/1 0s}
9. Nbd2 {3s} Nc5 {+0.01/1 0s} 10. c3 {3s} d4 {+0.01/1 0s}
11. Ng5 {3s} dxc3 {+0.01/1 0s} 12. Nxe6 {4s} fxe6 {+0.01/1
0s} 13. bxc3 {4s} Qd3 {+0.01/1 0s} 14. Bc2 {4s} Qxc3
{+0.42/13 1:16m} 15. Nb3 {3s} Qxe5 {+0.26/14 4:13m} 16. Re1
{1:42m} Rd8 {-0.18/15 8s} 17. Bd2 {17s} Qf6 {-0.24/14
1:17m} 18. Nxc5 {1:45m} Rxd2 {-0.21/15 0s} 19. Ne4 {2:32m
(Txe6+)} Rxd1 {+0.04/16 1:21m} 20. Nxf6+ {47s} gxf6
{+0.07/17 57s} 21. Raxd1 {42s} e5 {+0.11/17 1:00m} 22. Re3
{19s (a4)} Bd6 {+0.15/16 1:40m} 23. Kf1 {1:24m} h5
{+0.25/15 5s} 24. Bg6+ {1:44m (a4)} Ke7 {+0.30/15 1:12m}
25. h4 {11s (f4)} Ke6 {+0.44/16 1:00m} 26. Bc2 {3s} f5
{+0.41/16 4:00m} 27. g3 {4s (Lb3+)} Kf6 {+0.82/17 1:22m}
28. Bd3 {3s (Lb3)} Nd4 {+1.00/17 1:19m} 29. Be2 {1:13m} a5
{+1.12/17 2s} 30. Rb1 {1:05m (Kg2)} b4 {+1.00/17 1:16m}
31. Bd1 {2:46m (Td1)} c5 {+1.18/17 1:01m} 32. Rc1 {1:12m}
e4 {+1.17/18 0s} 33. Kg2 {1:39m} Rh7 {+1.17/17 15s} 34. Kf1
{2:00m (Lb3)} Rc7 {+1.21/16 1:50m} 35. Bxh5 {1:48m} c4
{+1.30/18 0s} 36. Bd1 {46s (Td1)} c3 {+1.78/16 1:02m}
37. Ba4 {1:09m} Bf8 {+1.89/17 0s} 38. g4 {4:07m} Rh7
{+2.08/18 0s} 39. g5+ {55s (Td1)} Ke5 {+2.19/16 45s}
40. Rh3 {3s} Nf3 {+2.27/16 1:41m} 41. Kg2 {3:38m (Ke2)}
Rxh4 {+2.33/17 1:00m} 42. Rxf3 {3s} exf3+ {+2.50/17 36s}
43. Kxf3 {34s} Rf4+ {+2.46/18 32s} 44. Ke2 {1:03m} Rg4
{+2.37/18 26s} 45. Rf1 {1:30m (Te1)} f4 {+2.52/17 45s}
46. Kf3 {4s (Lb3)} Rxg5 {+2.41/17 42s} 47. Re1+ {9s} Kf6
{+2.39/17 1:15m} 48. Kxf4 {3s} Rf5+ {+2.37/17 1:20m}
49. Kg4 {2s (Kg3)} Rxf2 {+3.88/17 43s} 50. Bb3 {1:01m} a4
{+4.37/18 0s} 51. Re6+ {42s} Kg7 {+4.32/20 0s} 52. Bxa4
{22s} Rxa2 {+4.36/18 21s} 53. Bb3 {3s} Ra3 {+4.50/18 23s}
54. Bd1 {54s} b3 {+4.78/19 0s} 55. Rc6 {31s} Bb4 {+4.78/17
0s} 56. Rc4 {44s} Ba5 {+5.01/18 0s} 57. Rc5 {38s} b2
{+5.03/18 0s} 58. Bc2 {1:19m} Ra1 {+5.04/18 0s} 59. Rg5+
{41s (Kf4)} Kf6 {+5.36/14 25s} 60. Rf5+ {3s (Tc5)} Ke7
{+5.58/15 40s} 61. Re5+ {24s (Tf2)} Kd6 {+8.85/17 50s}
62. Re2 {30s} b1=Q {+9.11/18 8s} 63. Bxb1 {24s} Rxb1
{+9.17/19 0s} 0-1



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