Author: Anthony Cozzie
Date: 09:51:12 03/21/04
Go up one level in this thread
On March 21, 2004 at 12:00:33, Kurt Utzinger wrote:
>Fritz8-GUI
>P3 650/32 MB hash
>ponder=off
>5moves.ctg
>no learning
>3-/4-men EGTB
>Gothmog 0.4.7 sel=6
>time: 40'/40+40'/40+40'
>
>In an absolute fascinating game (one of the most interesting one I have
>seen in the last few years), Gothmog 0.4.7 (sel=6) has beaten the very
>strong Junior 7. The running match stands 2.5-1.5 after 4 games:
>
>[Event "Junior7_Gothmog047 40'/40+40'/40+40'"]
>[Site "P3 650/32 5moves.ctg"]
>[Date "2004.03.21"]
>[Round "2"]
>[White "Junior 7"]
>[Black "Gothmog 0.4.7"]
>[Result "0-1"]
>[ECO "E21"]
>[Annotator "Utzinger,K"]
>[PlyCount "134"]
>
>1. d4 {Fritz8-GUI, ponder=off, 5moves.ctg, no learning, P3 650/32 MB hash,
>Gothmog 0.4.7 sel=6, 3-/4-men EGTB} 1... Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Nc3 b6 5.
>Qb3 Qe7 {Both last book move} 6. a3 Bxc3+ 7. Qxc3 Bb7 8. h4 {Typical Junior7:
>an attacking move at a moment when it is even unclear on which side Black is
>going to castle} 8... Ne4 9. Qc2 O-O 10. Bf4 c5 11. e3 cxd4 12. Bd3 d5 13. exd4
>Qf6 {
>Most surprising: I had expected 13...Rc8 when 14.Ng5 could be met with 14...f5}
>14. g3 {I do not understand this. The logical move seems 14.Be5 when it will
>be difficult for Black to prove that its previous move was an appropriate one}
>14... Nc6 15. Qd1 (15. Bxe4 dxe4 16. Qxe4 Na5 17. Qd3 Bxf3 18. Qxf3 Qxd4 {
>and Black is clearly better}) 15... Rad8 16. Bc2 ({Fritz 8:} 16. Bg5 Qf5 17. g4
>Qxg4 18. Bxd8 Rxd8 19. Rg1 Qf4 20. Qe2 Na5 {-0.10/15}) 16... Qf5 {Looks again
>dangerous but White has no possibility to attack the opposing queen. And
>furthermore it's difficult for Junior7 to find a good place for the own king}
>17. Qe2 Rc8 18. b4 Rfd8 19. c5 Qh5 20. Qd1 {A trial worth was 20.0-0 but
>anyway, the game remains very complicated and to find the best moves would be
>a very time consuming matter} 20... Ba6 21. Ne5 Qxd1+ 22. Rxd1 Nxe5 23. Bxe5 f6
>24. Bf4 Nc3 25. Ra1 Bc4 26. Be3 e5 {
>At all cost, Gothmog 0.4.7 wants to take the initiative} 27. Bf5 Rc6 28. cxb6
>exd4 29. Bxd4 Nb5 30. Bb2 Re8+ {
>Black has opened the e-file to improve the activity of the rook} 31. Kd1 Nd6 {
>Just crazy how Gothmog 0.4.7 is playing this game. My expectation was 31...
>axb6. The text move leads to unbelievablecomplications} 32. Bd7 Bb3+ 33. Kd2
>Rc2+ 34. Kd3 Ree2 {!? The next surprise: neither a computer program nor a
>human being can calculate enough deep OTB to say if this is a good or bad move}
>35. bxa7 {
>At first glance we get the impression that Black will shortly lose the game ...
>} 35... Red2+ 36. Ke3 Nc4+ 37. Kf4 Nb6 {
>Just in time, but it still looks very well for White} 38. Rac1 Rxf2+ 39. Kg4
>h5+ (39... Rxb2 {??} 40. Rc6 {+-}) 40. Kxh5 {Forced} (40. Kh3 Rxb2 41. Rc6 Bc4
>42. Rxb6 Bf1+ 43. Rxf1 Rh2#) 40... Rxb2 41. Rc6 Nxd7 42. a8=Q+ Kh7 {A fantastic
>position: White has the queen for only two minor pieces. But Black is
>threatening Ne5 followed by g6 mate} 43. Qe8 {The only move} (43. Kg4 {?} 43...
>Bd1+ 44. Kh3 (44. Rxd1 Ne5+ 45. Kh5 g6#) 44... Ne5 {and Black wins}) (43. Re6 {
>?} 43... Bc2 44. Qxd5 Rf5+ 45. Qxf5+ Bxf5 {and it's again Black to win}) 43...
>Ne5 44. Rxf6 {All other moves are losing} 44... gxf6 {
>And now, material is about equal but White's king is still in danger} 45. Qe7+
>Kg8 46. Re1 (46. Qe8+ Kg7 47. Qe7+ Nf7 {-+ and White is in Zugzwang}) 46... Nf7
>47. Qd7 d4 48. Re8+ (48. Qxd4 Rbd2 49. Qg4+ Kf8 50. Qc8+ Kg7 51. Qg4+ Kf8 52.
>Qc8+ Kg7 53. Qg4+ {and the game would end with a draw}) 48... Kg7 49. Qg4+ {
>Is White not winning now?} 49... Ng5 50. Re7+ (50. hxg5 {??} 50... Bf7+ 51. Kh4
>Rh2+ 52. Qh3 Rxh3+ 53. Kxh3 Bxe8 {and White is lost}) 50... Kf8 51. Qd7 Nf7 52.
>a4 {Further analysis are required to see if this is a mistake} (52. Re4 Ne5 53.
>Qxd4 Rbd2 54. Qc5+ Kg7 55. Rxe5 Bf7+ 56. Kg4 fxe5 57. Qxe5+ Rf6 58. Kh3 Be6+
>59. g4 Rd3+ 60. Kh2 Rd2+ 61. Kg1 Rd1+ 62. Kg2 Rd2+ {=}) 52... Rbd2 53. g4 {
>? Junior7 still shows a positive score but this pawn advance is wrong and
>allows Gothmog 0.4.7 to change things completely 0.42/14 2:15} ({Fritz 8:} 53.
>b5 Rf3 54. Rxf7+ Bxf7+ 55. Kh6 Re2 56. g4 Re7 57. Qxd4 f5 58. g5 Re6+ 59. Kh7 {
>1.15/16}) 53... Kg7 54. b5 {-3.05/13 37} 54... Rde2 {
>-5.93/12 1:19 Another winning move was 54...Rf4} (54... Rf4 55. Re8 {
>forced in order to meet Rc2 with Rc8} 55... Rdf2 56. Re7 Rf5+ 57. gxf5 Bd1+ 58.
>Re2 Bxe2#) 55. Rxe2 (55. b6 Rxe7 56. Qxe7 Rf5+ 57. gxf5 Bd1+ 58. Qe2 Bxe2#)
>55... Rxe2 {With the threat to mate starting with Re5} 56. g5 Bd1 {
>Now, Gothmog's mating attack costs White too much material} 57. Qg4 (57. gxf6+
>Kxf6 {-+ does not change things}) 57... Re1 58. Qxd1 Rxd1 59. gxf6+ Kxf6 {
>Here, we could stop the game} 60. Kg4 d3 61. Kf4 Re1 62. b6 d2 63. b7 d1=Q 64.
>b8=Q Qd4+ 65. Kf3 Qd3+ 66. Kg4 Nh6+ 67. Kf4 Rf1# {A fantastic game: one of the
>most famous I have seen in the last few years between two computer programs}
>0-1
Go Tord!
Junior is one of the most aggressive king attacking programs out there, so you
know you are doing something right when you dispatch it with a mating attack :)
The critical position:
[D]Q5k1/3n2p1/2R2p2/3p3K/1P5P/Pb4P1/1r3r2/7R b - - 0 42
And here Zappa needs 6 minutes to realize black is not losing:
1... Kg8-h7 2. Qa8-e8 Nd7-e5 3. Rc6xf6 g7xf6 4. Qe8-e7 Kh7-g8 5. Rh1-e1 Rb2-e2
6. Re1xe2 Rf2xe2 7. Qe7xf6 d5-d4 8. b4-b5 d4-d3 9. b5-b6 d3-d2
= (-1.28) Depth: 15/29 00:02:02.70 116236kN
1... Kg8-h7 2. Qa8-e8 Nd7-e5 3. Rc6xf6 Rf2xf6 4. Qe8xe5 Rb2-f2 5. Kh5-g4 Bb3-c2
6. Kg4-h3 Bc2-f5 7. g3-g4 Rf2-f3 8. Kh3-g2 Bf5-e4 9. Rh1-a1 Rf3-f2 10. Kg2-g1
Rf2-g2 11. Kg1-h1 Rg2-c2 12. Kh1-g1 Rc2-g2
= (0.00) Depth: 16/31 00:05:57.27 339548kN
anthony
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