Author: Dann Corbit
Date: 21:33:52 06/06/02
Go up one level in this thread
On June 06, 2002 at 20:41:42, Jon Dart wrote: >This is a recent test game Arasan vs. Pharaon: > >[Event "?"] >[Site "-"] >[Date "2002.06.05"] >[Round "?"] >[White "Arasan 6.0"] >[Black "Pharaon 2.62"] >[Result "0-1"] >[ECO "B33"] >[TimeControl "1200+0"] > >1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Nf6 6. Ndb5 d6 >7. Bf4 e5 8. Bg5 a6 9. Na3 b5 10. Nd5 Be7 11. Bxf6 Bxf6 12. c3 O-O >13. Nc2 Bg5 14. a4 bxa4 15. Rxa4 a5 16. Bc4 Rb8 17. b3 Kh8 18. O-O f5 >19. exf5 Bxf5 20. Nce3 Bg6 21. Qg4 Rb7 22. Kh1 Rbf7 23. f3 Rb7 >24. Rfa1 Rb8 25. Qe6 e4 26. fxe4 Ne5 27. Rxa5 Bxe3 28. Nxe3 Bf7 >29. Qh3 Nxc4 30. Nxc4 Bxc4 31. Rh5 Bg8 32. b4 Qe8 33. e5 Rb5 34. Qh4 >Rxe5 35. Rxe5 Qxe5 36. Qe1 Ra8 37. Rc1 Qxe1+ 38. Rxe1 Ra3 39. Rc1 Bd5 >40. Kg1 Ra2 41. Rd1 Rxg2+ 42. Kf1 Bb3 43. Kxg2 Bxd1 44. b5 Ba4 45. b6 >Bc6+ 46. Kg3 Kg8 47. Kf4 Kf7 48. c4 Ke6 49. Ke3 Bb7 50. Kd4 Kd7 >51. Kd3 0-1 {White resigns} > >An interesting move here is 25 .. e4 from this position: > >[D] 1r1q1r1k/6pp/2npQ1b1/p2Np1b1/R1B5/1PP1NP2/6PP/R6K b - - > >Crafty 18.10 doesn't like this move: > > 25. Qe6 e4 > ({13:+0.33} 25. ... e4 26. fxe4 Ne5 27. Qh3 Bxe4 28. Rxa5 Nxc4 >29. Nxc4 Rf2 30. Qg4 Bxg2+ 31. Kg1 Bf3 32. Qf5 Rg2+ 33. Kf1 $14) > ({13:+0.00} 25. ... Be8 26. Qg4 Bg6 $10) > ({13:+0.00} 25. ... Bf7 26. Qg4 Bg6 $10) > ({13:+0.01} 25. ... Bxe3 26. Nxe3 Bf7 27. Qg4 Bxc4 28. Rxc4 Ne7 > 29. Ra3 Rf6 30. Rca4 Rc8 31. Nc4 Nd5 32. b4 Rf4 $10) > 26. fxe4 Ne5 > 27. Rxa5 > ({13:-1.06} 27. Rxa5 Bxe3 28. Nxe3 Bf7 29. Rxe5 Bxe6 30. Rxe6 Q >g5 31. Re1 Rbd8 32. Nf5 Qd2 33. Rf1 Qxc3 34. Rxd6 Rxd6 35. Nxd6 Rxf1+ 36. Bxf1 Q >xb3 $17) > ({13:-0.70} 27. Bf1 Rxb3 28. Rxa5 Bxe4 29. R5a4 Bg6 30. Ra8 Rb8 > 31. Rxb8 Qxb8 32. Kg1 Bxe3+ 33. Nxe3 Rf6 34. Qe7 Be4 $15) > ({13:-0.81} 27. Qh3 Nxc4 28. Rxc4 Rxb3 29. Nf5 Rb2 30. Qg4 h5 3 >1. Qf3 Rb5 32. Rd4 Bf6 33. Rda4 Bg5 $17) > >But notice that by move 27, it sees that as a result of e4 fxe4 Ne5, White can't >do better than -0.70. > >Pharaon itself switches to e4, early but the score doesn't start to go up >significantly for quite a while: > > 7. -28 1 353770 e4 fxe4 Re8 Qh3 Bxe4 Nf5 h6 > 7-> -28 2 469433 e4 fxe4 Re8 Qh3 Bxe4 Nf5 h6 > 8. -33 2 802767 e4 fxe4 Re8 Qh3 Bxe4 Nf5 Re5 Nde3 > 8. -33 5 1573056 Be8! > 8. -33 5 1701477 Re8! > 8-> -33 6 1934613 e4 fxe4 Re8 Qh3 Bxe4 Nf5 Re5 Nde3 > 9. -19 7 2533726 e4 fxe4 Re8 Qg4 Bxe4 Rf1 Rb7 Nf5 Rf7 > 9-> -19 9 3059277 e4 fxe4 Re8 Qg4 Bxe4 Rf1 Rb7 Nf5 Rf7 >10. -7 13 4968281 e4 fxe4 Re8 Qg4 Bxe4 Rf1 Re5 Qh3 Qe8 Nf4 >10-> -7 16 5944242 e4 fxe4 Re8 Qg4 Bxe4 Rf1 Re5 Qh3 Qe8 Nf4 >11. -4 24 9099300 e4 fxe4 Re8 Qg4 Bxe4 Qh5 Rb7 Rd1 Re5 Ng4 Qe8 >11-> -4 31 11430433 e4 fxe4 Re8 Qg4 Bxe4 Qh5 Rb7 Rd1 Re5 Ng4 Qe8 >12. 8 81 30163019 e4 fxe4 Ne5 Qh3 Bxe4 Be2 Bxd5 Nxd5 Rf2 Bd3 Nxd3 Qxd3 > Rxb3 Rxa5 >12-> 8 95 35602128 e4 fxe4 Ne5 Qh3 Bxe4 >13. 31 188 71214188 e4 fxe4 Ne5 Qh3 Bxe4 Qg3 Nxc4 Rxc4 >13-> 31 215 81280627 e4 fxe4 Ne5 Qh3 Bxe4 Qg3 Nxc4 Rxc4 >14. 39 538 205827618 e4 fxe4 > >(Scores here are + for a Black advantage, unlike Crafty: so the score at ply 14 >is 0.39 in Black's favor). > >So far I'm not sure if e4 is decisively the best move, or if there's a better >defense to it. It is peculiar that both programs expect the PV e4 fxe4 Ne5 Qh3, >but think (for a long while) that the score is even or + for White. Pepito: 5 18 94 15480 e4 f3xe4 Rf8-e8 Qe6-g4 Bg6xe4 5 18 124 20765 e4 f3xe4 Rf8-e8 Qe6-g4 Bg6xe4 6 6 129 34980 e4 f3xe4 Rf8-e8 Qe6-h3 Bg6xe4 Ra1-f1 6 12 133 47673 Bg6-f7 Qe6-g4 Kh8-g8 Qg4-e4 Bf7-e6 Ra1-d1 6 12 142 79108 Bg6-f7 Qe6-g4 Kh8-g8 Qg4-e4 Bf7-e6 Ra1-d1 7 11 151 110501 Bg6-f7 Qe6-g4 Rb8-b7 Ra1-d1 Kh8-g8 Ne3-f5 Bf7-e6 7 11 178 206831 Bg6-f7 Qe6-g4 Rb8-b7 Ra1-d1 Kh8-g8 Ne3-f5 Bf7-e6 8 8 204 287820 Bg6-f7 Qe6-g4 Rb8-b7 Ra1-d1 Bf7-g6 Qg4-e6 Qd8-d7 Qe6xd7 Rb7xd7 8 21 246 439812 e4 f3xe4 Bg5xe3 Nd5xe3 Bg6-f7 Qe6-g4 Bf7xc4 b3xc4 Rb8-b2 Ra1-d1 8 21 271 533067 e4 f3xe4 Bg5xe3 Nd5xe3 Bg6-f7 Qe6-g4 Bf7xc4 b3xc4 Rb8-b2 Ra1-d1 9 24 340 796266 e4 f3xe4 Bg5xe3 Nd5xe3 Bg6-f7 Qe6-g4 Bf7xc4 b3xc4 Rb8-b2 Ne3-f5 Qd8-d7 9 24 409 1047503 e4 f3xe4 Bg5xe3 Nd5xe3 Bg6-f7 Qe6-g4 Bf7xc4 b3xc4 Rb8-b2 Ne3-f5 Qd8-d7 10 3 677 2033576 e4 f3xe4 Rf8-e8 Qe6-g4 Re8xe4 Qg4-g3 Bg6-f7 Qg3-f3 Qd8-e8 Ne3-f5 10 8 943 2991467 Bg6-f7 Qe6-g4 Bf7-e8 Ra1-d1 Be8-g6 Ra4-a1 Rb8-b7 Qg4-e6 Bg6-f7 Qe6-g4 10 8 2042 7072936 Bg6-f7 Qe6-g4 Bf7-e8 Ra1-d1 Be8-g6 Ra4-a1 Rb8-b7 Qg4-e6 Bg6-f7 Qe6-g4 11 7 2413 8387830 Bg6-f7 Qe6-g4 Bf7-e8 Ra1-d1 Be8-g6 Ra4-a1 Nc6-a7 Rd1-e1 Na7-b5 Qg4-e6 Rb8-b7 11 7 4305 15455356 Bg6-f7 Qe6-g4 Bf7-e8 Ra1-d1 Be8-g6 Ra4-a1 Nc6-a7 Rd1-e1 Na7-b5 Qg4-e6 Rb8-b7 12 6 6143 22013166 Bg6-f7 Qe6-g4 Bf7-e8 Ra1-d1 Bg5-f4 Qg4-e6 Nc6-e7 Ra4-a1 Ne7xd5 Ne3xd5 Be8-f7 Qe6-g4 Bf4-g5 12 40 8484 30790945 e4 !! 12 60 11928 43394731 e4 f3xe4 Nc6-e5 Qe6-h3 Bg6xe4 Bc4-a6 Be4-g6 Ra4-a3 Rf8-f2 Qh3-g3 Bg5-h4 Qg3-h3 12 60 12489 45421180 e4 f3xe4 Nc6-e5 Qe6-h3 Bg6xe4 Bc4-a6 Be4-g6 Ra4-a3 Rf8-f2 Qh3-g3 Bg5-h4 Qg3-h3
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