Milady_3.25 - Fidelity Phantom (19-1)

Game over! Milady won by a large score. I wonder why the score is so high, that is not normal. The same phenomena arose against the Mephisto Expert. The score leads to a rating of 2346. All the games are available here.So that maybe there is a phenomena, when a engine is tactically much stronger than an other, the stronger engine will win anyway? I have not the answer but I have seen this hypothesis on SchachComputer.info. To be clarified...

End of the match Phantom - Mephisto MMII : 13 - 7

I will update the page both of Phantom and MM II (double work :P ) . The Phantom won 13-7, giving a performance of 1877 +- 72, that is consistent with its ranking of 1835. Performance of MM II is of 1727+- 72.

 

Total games	20	Mean rating	1802,5	Error Barre (%)	8,9
	Score	Rating	Perf (%)	Rating opponents	Perf (elo)	Error Bar (Elo)	Elo
Mephisto MMII	7,0	1770,0	35,0	1835,0	1715,0	71,6	1727,5
Fidelity Phantom	13,0	1835,0	65,0	1770,0	1890,0	71,6	1877,5

 

  

During the match, I had the feeling that the Phantom was stronger than MM II. Some of the games were very pleasant, as can be seen below (game 17). Some of the games were just a succession of blunders from both sides. An other interesting position is this one :

 

6k1/p2b2p1/p1pb1p1p/Pr1p4/R2P3P/3NP3/5PPN/6K1 b - - 7 32 ; game 18 MMII-Phantom

 

After 31. Ra4 ?? there are several winning moves for blacks. The Phantom found one of the winning move. Could you find it?

4 positions from game 17 Fidelity Phantom- MM II

During the 17th game, I have taken 4 positions which can be used as tests for your engine (or you).

The solutions are given at the end.

 

1k2r2r/pp2b1pp/2p3n1/Q3P3/PP1N2q1/2P5/3B2PP/R3R1K1 b - a3 0 25 ; game 17 Phantom - MMII black wins (hard)

 

1k6/p5pp/1b2r3/3QP3/PP4qn/2P5/R2B1rPP/4R2K w - - 7 32 ; game 17 Phantom - MMII white is lost even with their best move (hard)

1k6/p5pp/1b4r1/3QP3/PP4qn/2P5/R4rPP/2B1R2K w - - 9 33 ; game 17 Phantom - MMII white wins (hard)

 

4k3/4P1p1/p2Br3/P1P4p/1P5n/8/5b1P/5R1K w - - 0 44 ; game 17 Phantom - MMII white wins (easy)

 

 Solutions :

 

1/ unseen winning move 25...Nh4

2/ even the best move 32.... Bc1 (or Be3) is loosing, for instance look at the Fruit 2.1 analyses lines:

 

14/47 00:37   39 267 399 1 058 211 -2,48 1.Bc1 Rxa2 2.Qxa2 Rxe5 3.Qg8+ Kb7 4.Qf7+ Bc7 5.Rg1 Rh5 6.a5 a6 7.b5 Rxb5 8.Be3 Rb2 9.Bf2

14/48 00:52   56 288 295 1 072 223 -2,26 1.Be3 Rxa2 2.Qxa2 Bxe3 3.h3 Qxg2+ 4.Qxg2 Nxg2 5.Kxg2 Bd2 6.Rf1 Bxc3 7.Rf8+ Kb7 8.Rf7+ Kb6 9.Rxg7 Bxb4 10.Rxh7 Rxe5 11.Rd7

15/51 02:11  139 916 580 1 062 940 -2,25 1.Be3 Rxa2 2.Qxa2 Bxe3 3.h3 Qxg2+ 4.Qxg2 Nxg2 5.Re2 Nf4 6.Rxe3 Nd5 7.Rf3 Rxe5 8.Kg2 Re7 9.Kg3 Kb7 10.b5

3/ after 32...Rg6?? winning move 33. Rxf2
4/ after 43...a6?? winning move 44. b5

Picture of Phantom - MM II match

It was the 13th game actually in progress (Phantom drives white pieces):

Challenger Chess Champion 7.5 - 2.5 Chess Titan

The game number 10 lost by Chess Titan which gives two figures for nothing (as it is the case in some games). The performance of Chess Challenger comes near from it's true level (around 1500):

[Date "2013.01.01"]
[Round "10"]
[White "Chess Titan"]
[Black "Champion Chess Challenger"]
[Result "0-1"]
[BlackElo "1535"]
[ECO "A41"]
[Opening "Neo-Old Indian"]
[Time "16:56:16"]
[Variation "Wade Defence, 3.c4 Nd7 4.Nc3"]
[WhiteElo "1300"]
[TimeControl "1800"]
[Termination "adjudication"]
[PlyCount "52"]
[WhiteType "program"]
[BlackType "program"]
1. c4 c5 2. Nc3 Nc6 3. e3 d6 4. d4 cxd4 5. exd4 Qb6 6. Nd5 Qd8 7. Nf3 Bg4
8. h3 Bxf3 9. gxf3 e6 10. Bg5 f6 11. Bd2 exd5 12. cxd5 Nb8 13. Bc4 Qe7+ 14.
Be3 Nd7 15. f4 Qe4 16. O-O Nb6 17. Qh5+ Kd8 18. b3 Ne7 19. Rfd1 Qg6+ 20.
Qxg6 hxg6 21. Be2 Rxh3 22. Bg4 Rh4 23. f3 f5 24. Bf2 Rh8 25. a4 Nbxd5 26.
Bg3 fxg4 {User Adjudication} 0-1

Phantom 6 - 4 Mephisto MM II

Game 10th finished with a tie, in a drawish bishop/knight ending. So that the score is now 6-4 for the Phantom. Forgot to mentioned the level is 1 min/move. See the pictures of this game below.

 

 

 

 

Note that this performance corresponds to 1765 for the MM II and 1840 for the Phantom which is near the perfect theorical score!

After 8 games : Phantom 4.5 - 3.5 Mephisto MM II

Now the Phantom is winning:

[Date "2012.12.29"]
[Round "8"]
[White "Mephisto MMII"]
[Black "Fidelity Phantom"]
[Result "0-1"]
[BlackElo "1835"]
[ECO "C56"]
[Opening "Two Knights"]
[Time "14:40:18"]
[Variation "Classical, Canal Variation"]
[WhiteElo "1770"]
[TimeControl "1800"]
[Termination "adjudication"]
[PlyCount "122"]
[WhiteType "program"]
[BlackType "program"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bc4 Nxe4 5. Nxe4 d5 6. Bd3 dxe4 7. Bxe4
Bd6 8. Bxc6+ bxc6 9. d4 exd4 10. Nxd4 O-O 11. O-O Ba6 12. Re1 Qh4 13. Nf3
Qg4 14. Qd4 Qxd4 15. Nxd4 Rfe8 16. Be3 c5 17. Nb3 c4 18. Nd4 Rab8 19. Rab1
Bb7 20. Nf5 a5 21. Ba7 Ra8 22. Rxe8+ Rxe8 23. Rd1 Be5 24. c3 Be4 25. Ne3
Bd3 26. g3 g5 27. h4 gxh4 28. gxh4 f5 29. Re1 Bf6 30. h5 c6 31. a4 Kf7 32.
f4 Bh4 33. Rd1 Rg8+ 34. Ng2 Be7 35. Kf2 Bc2 36. Ra1 Rg4 37. Bb6 Be4 38. Rg1
Ke6 39. Be3 c5 40. Bd2 Bc6 41. Bc1 h6 42. Re1+ Kf7 43. Rg1 Bxa4 44. Be3 Bc6
45. Ne1 Rxg1 46. Kxg1 Ke6 47. Kf1 Be8 48. Nc2 Bxh5 49. Bd2 Be8 50. Ne3 Bd6
51. Ng2 h5 52. Kf2 Be7 53. Kg3 Kd5 54. Ne3+ Ke4 55. Bc1 Bb5 56. Kh3 a4 57.
Ng2 Kd3 58. Ne1+ Ke2 59. Ng2 Kd1 60. Be3 Kc2 61. Bxc5 Bxc5 {User
Adjudication} 0-1