Old Hydra Position

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kgburcham
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Old Hydra Position

Post by kgburcham »

37...Qb5

[D] 5r1k/bpr4p/2q1Bnp1/2P1pP2/p2pP1P1/P4Q1P/2RN3K/2R5 b - -
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bob
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Re: Old Hydra Position

Post by bob »

kgburcham wrote:37...Qb5

[D] 5r1k/bpr4p/2q1Bnp1/2P1pP2/p2pP1P1/P4Q1P/2RN3K/2R5 b - -
What analysis says Qb5 is the best move, as opposed to "just the move Hydra played"???
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Yar
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Location: Moscow, Russia

Re: Old Hydra Position

Post by Yar »

Analysis by Rybka 3 32-bit on core 2 duo 6750:

1...g6xf5 2.Be6xf5 h7-h6
= (-0.06) Depth: 6 00:00:00 9kN
1...g6xf5 2.Be6xf5 Rc7-g7 3.Nd2-c4 Qc6xc5
= (-0.08) Depth: 7 00:00:00 18kN
1...g6xf5 2.Be6xf5 Rc7-g7 3.Kh2-h1 Rg7-g8 4.Nd2-c4
= (-0.09) Depth: 8 00:00:00 41kN
1...g6xf5 2.Be6xf5 Rc7-g7 3.Kh2-h1 Rg7-f7 4.Nd2-c4 Qc6xc5
= (-0.10) Depth: 9 00:00:01 64kN
1...g6xf5 2.Be6xf5 Rc7-g7 3.Kh2-h1 Rg7-f7 4.Nd2-c4 Qc6xc5 5.Qf3-d3
= (-0.10) Depth: 10 00:00:02 104kN
1...g6xf5 2.Be6xf5 Rc7-g7 3.Kh2-h1 Ba7-b8 4.Rc1-b1 Bb8-c7 5.Nd2-c4 Nf6-d7
= (-0.15) Depth: 11 00:00:04 226kN
1...g6xf5 2.Be6xf5 Rc7-g7 3.Kh2-h1 Ba7-b8 4.Kh1-h2 Rf8-d8 5.Rc1-b1 Bb8-a7 6.Nd2-c4
= (-0.07) Depth: 12 00:00:08 416kN
1...g6xf5 2.Be6xf5 Rc7-g7 3.Kh2-h1 Ba7-b8 4.Kh1-h2 Rf8-g8 5.Rc2-b2 Bb8-a7 6.Rb2-c2 Rg8-d8
= (-0.07) Depth: 13 00:00:14 763kN
1...g6xf5 2.Be6xf5 Rc7-g7 3.Kh2-h1 Ba7-b8 4.Kh1-h2 Rf8-g8 5.Rc2-b2 Bb8-a7 6.Rb2-c2 Rg8-d8
= (-0.07) Depth: 14 00:00:44 2566kN
1...Qc6-b5 2.Be6-c4 Qb5-a5 3.g4-g5 Nf6-h5
= (-0.12) Depth: 14 00:01:19 5193kN
1...Qc6-b5 2.Be6-c4 Qb5-a5 3.Rc1-b1 Ba7xc5 4.Rb1-b5 Qa5-a8 5.Bc4-d3 Qa8-c8 6.g4-g5 Nf6-h5 7.Nd2-c4 Qc8-e8
=/+ (-0.27) Depth: 15 00:03:35 14785kN
1...Qc6-b5 2.Be6-c4 Qb5-a5 3.Rc1-b1 Ba7xc5 4.Rb1-b5 Qa5-a8 5.Bc4-d3 Qa8-c8 6.g4-g5 Nf6-h5 7.Nd2-c4 Qc8-e8
=/+ (-0.27) Depth: 16 00:04:56 21156kN
1...Qc6-b5 2.Be6-c4 Qb5-a5 3.Rc1-b1 Ba7xc5 4.Rb1-b5 Qa5-a8 5.Bc4-d3 Qa8-c8 6.g4-g5 Nf6-h5 7.Nd2-c4 b7-b6 8.Rc2-f2 Qc8-e8 9.Nc4xb6 Bc5xa3
=/+ (-0.33) Depth: 17 00:11:40 51637kN
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AdminX
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Re: Old Hydra Position

Post by AdminX »

Analysis by Bright-0.4a:

1...gxf5 2.Qxf5 d3 3.Rc3 Re7 4.Bd5 Qb5
+/= (0.34) Depth: 6/17 00:00:00 77kN
+/= (0.34) Depth: 6/17 00:00:00 77kN

1...h6 2.Bd5 Qe8 3.c6 Qd8 4.Rb2 bxc6 5.Bxc6
= (0.12) Depth: 6/17 00:00:00 110kN
= (0.12) Depth: 7/20 00:00:00 145kN

1...gxf5 2.gxf5 Rg7 3.Bd5 Qb5 4.Be6 Qc6
= (-0.11) Depth: 7/22 00:00:00 181kN
= (0.00) Depth: 18/55 00:05:39 1137mN

1...Qb5 2.Rb1 Qa5 3.fxg6 hxg6 4.Qg3 Re7 5.Bd5 Bxc5 6.Bxb7 d3 7.Qxd3 Rd7 8.Nc4 Rxd3 9.Nxa5 Be3 10.Nc4 Bf4+ 11.Kg2 Rg3+ 12.Kf1 Rxh3 13.Rb6 Rh1+ 14.Kg2
= (-0.05) Depth: 18/65 00:10:06 2042mN
=/+ (-0.35) Depth: 21/78 01:16:35 3896mN
"Good decisions come from experience, and experience comes from bad decisions."
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bob
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Re: Old Hydra Position

Post by bob »

AdminX wrote:Analysis by Bright-0.4a:

1...gxf5 2.Qxf5 d3 3.Rc3 Re7 4.Bd5 Qb5
+/= (0.34) Depth: 6/17 00:00:00 77kN
+/= (0.34) Depth: 6/17 00:00:00 77kN

1...h6 2.Bd5 Qe8 3.c6 Qd8 4.Rb2 bxc6 5.Bxc6
= (0.12) Depth: 6/17 00:00:00 110kN
= (0.12) Depth: 7/20 00:00:00 145kN

1...gxf5 2.gxf5 Rg7 3.Bd5 Qb5 4.Be6 Qc6
= (-0.11) Depth: 7/22 00:00:00 181kN
= (0.00) Depth: 18/55 00:05:39 1137mN

1...Qb5 2.Rb1 Qa5 3.fxg6 hxg6 4.Qg3 Re7 5.Bd5 Bxc5 6.Bxb7 d3 7.Qxd3 Rd7 8.Nc4 Rxd3 9.Nxa5 Be3 10.Nc4 Bf4+ 11.Kg2 Rg3+ 12.Kf1 Rxh3 13.Rb6 Rh1+ 14.Kg2
= (-0.05) Depth: 18/65 00:10:06 2042mN
=/+ (-0.35) Depth: 21/78 01:16:35 3896mN
This is what I was seeing, which led me to believe that Qb5 is "just a legal move" here and not particularly better than other moves such as opening the kingside.
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beachknight
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Re: Old Hydra Position

Post by beachknight »

1572: 5r1k/bpr4p/2q1Bnp1/2P1pP2/p2p
5r1k/bpr4p/2q1Bnp1/2P1pP2/p2pP1P1/P4Q1P/2RN3K/2R5 b - - 0 1

Analysis by Deep Fritz 11:

1...gxf5 2.gxf5 Rg7 3.Bd5 Qb5 4.Rb1 Qa6 5.Be6 Qa5 6.Nc4 Qxc5 7.Rg2 Rxg2+ 8.Qxg2 Qc7 9.Nb2 Qg7
= (-0.05) Depth: 19/36 00:00:28 201mN
1...gxf5 2.gxf5 Rg7 3.Bd5 Qb5 4.Be6
= (0.00) Depth: 20/43 00:01:02 452mN
1...gxf5 2.gxf5 Rg7 3.Bd5 Qb5 4.Be6
= (0.00) Depth: 21/39 00:01:49 811mN
1...Qb5 2.Bc4 Qa5 3.g5 Nh5 4.Rb1 Bxc5 5.Rb5 Qa7 6.Bd3 Bd6 7.Rxc7 Bxc7 8.f6
= (-0.25) Depth: 21/42 00:05:16 2384mN
1...Qb5 2.Bc4 Qa5 3.g5 Nh5 4.Rb1 Bxc5 5.Rb5 Qa7 6.Bd3 Bd6 7.Rxc7 Bxc7 8.Qg4 Nf4
=/+ (-0.31) Depth: 22/43 00:09:56 4525mN

(, chessengines20 03.08.2009)
hi, merhaba, hallo HT
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beachknight
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Re: Old Hydra Position

Post by beachknight »

R3x64 finds Qb5 in 3 minutes. No further analysis.
hi, merhaba, hallo HT
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beachknight
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Re: Old Hydra Position

Post by beachknight »

1572: 5r1k/bpr4p/2q1Bnp1/2P1pP2/p2p
5r1k/bpr4p/2q1Bnp1/2P1pP2/p2pP1P1/P4Q1P/2RN3K/2R5 b - - 0 1

Further Analysis by Deep Fritz 11:

1...Qb5 2.Bc4 Qa5 3.Rb1 Bxc5 4.Rb5 Qa8 5.g5 Nh5 6.Bd5 Qa7 7.Rcb2 Nf4 8.f6 b6
= (-0.16) Depth: 23/43 00:14:39 6639mN
1...Qb5 2.Bc4 Qa5 3.Rb1 Qxc5 4.Bd3 Qd6 5.Nc4 Qd7 6.Kg1 Qe7 7.Rb5 Nd7
=/+ (-0.34) Depth: 24/45 00:36:25 16518mN

(, chessengines20 03.08.2009)
hi, merhaba, hallo HT
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Dann Corbit
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Re: Old Hydra Position {the emperor has spoken, Hydra +1}

Post by Dann Corbit »

kgburcham wrote:37...Qb5

[D] 5r1k/bpr4p/2q1Bnp1/2P1pP2/p2pP1P1/P4Q1P/2RN3K/2R5 b - -

Code: Select all


Analysis from C:\test\hydra.epd   
8/3/2009 12:51:30 PM Level: 3600 Seconds
Analyzing engine: Rybka 3

1)                      
    Avoid move: 
    Best move (Rybka 3): Qc6-b5
    Not found in: 1:00:00
      2	00:01	         712	6.628	+0.16	g6xf5
      3	00:02	       1.023	8.313	+0.11	g6xf5
      4	00:02	       1.604	11.648	+0.13	g6xf5
      5	00:02	       4.442	26.292	+0.17	g6xf5 g4xf5 Rc7g7
      6	00:02	      12.830	39.932	+0.08	g6xf5 g4xf5 Rc7g7 Be6d5 Qc6c7
      7	00:02	      17.793	48.586	+0.08	g6xf5 g4xf5 Rc7g7 Be6d5 Qc6c7
      8	00:02	      46.614	72.763	+0.09	g6xf5 Be6xf5 Rc7g7 Nd2c4 Ba7b8
      9	00:02	     101.778	102.680	+0.08	g6xf5 Be6xf5 Rc7g7 Nd2c4 Qc6xc5 Qf3d3 Qc5e7 Rc2b2
     10	00:02	     162.614	118.517	+0.10	g6xf5 Be6xf5 Rc7g7 Nd2c4 Qc6xc5 Qf3d3 Qc5e7 Rc2b2
     11	00:03	     281.005	135.538	+0.08	g6xf5 Be6xf5 Rc7g7 Nd2c4 Qc6xc5 Qf3d3 Ba7b8 Nc4b2 Qc5a5
     12	00:04	     451.880	148.261	+0.10	g6xf5 Be6xf5 Rc7g7 Nd2c4 Qc6xc5 Qf3d3 Ba7b8 Nc4b2 Qc5a5 Rc2c4
     13	00:06	     722.032	158.491	+0.10	g6xf5 Be6xf5 Rc7g7 Nd2c4 Qc6xc5 Qf3d3 Ba7b8 Nc4b2 Qc5a5 Rc2c4 b7b5
     14	00:12	   1.539.060	150.324	+0.10	g6xf5 Be6xf5 Rc7g7 Nd2c4 Qc6xc5 Qf3d3 Ba7b8 Nc4b2 Qc5a5 Rc2c4 Qa5b5 Nb2xa4 Rg7c7
     15	00:26	   3.980.313	161.771	+0.11	g6xf5 Be6xf5 Rc7g7 Nd2c4 Qc6xc5 Qf3d3 Ba7b8 Nc4b2 Qc5a7 Qd3d2 Bb8d6 Nb2c4 Qa7c5 Rc1b1
     16	00:48	   7.335.865	159.285	+0.11	g6xf5 Be6xf5 Rc7g7 Nd2c4 Qc6xc5 Qf3d3 Ba7b8 Nc4b2 Qc5a7 Qd3d2 Bb8d6 Nb2c4 Qa7c5 Rc1b1
     17	03:51	  40.980.033	182.989	+0.08	g6xf5 g4xf5 Rf8d8 Qf3g3 Rc7g7 Qg3f3 Rd8e8 Be6a2 Rg7g5 Ba2d5 Qc6c7 Bd5e6 Re8d8 Qf3f2 Qc7g7
     17+	08:34	  98.593.896	196.769	+0.31	Qc6b5
     17	12:55	 149.396.930	197.584	+0.37	Qc6b5 Be6c4 Qb5a5 Qf3d3 Rc7xc5 Bc4e6 Rc5xc2 Rc1xc2 Ba7c5 Nd2f3 Bc5e7 Kh2g2 g6xf5 Be6xf5 Nf6e8 Rc2c8 Ne8g7 Rc8xf8+ Be7xf8 Bf5d7
     18	19:34	 237.515.339	207.383	+0.47	Qc6b5 Be6c4 Qb5a5 Qf3d3 Rc7xc5 Bc4e6 Rc5xc2
     19	28:31	 355.460.260	212.859	+0.47	Qc6b5 Be6c4 Qb5a5 Qf3d3 Rc7xc5 Bc4e6 Rc5xc2 Rc1xc2 Ba7c5 Nd2f3 Bc5e7 Kh2g2 g6xf5 Be6xf5 Be7d6 Nf3d2 Bd6e7
     20	47:23	 624.941.327	225.150	+0.45	Qc6b5 Be6c4 Qb5a5 Qf3d3 Rc7xc5 Rc2b2 Rf8b8 Qd3f1 g6g5 Rc1b1 Qa5c3 Bc4d3 b7b5 Rb2a2 h7h6 Qf1e2 Kh8g7 Nd2f3 Ba7b6 Kh2g2 Bb6c7
   8/3/2009 1:51:47 PM, Time for this analysis: 01:00:00, Rated time: 1:00:00

0 of 1 matching moves
8/3/2009 1:51:48 PM, Total time: 1:00:17 AM
Rated time: 1:00:00 = 3600 Seconds
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yanquis1972
Posts: 1766
Joined: Wed Jun 03, 2009 12:14 am

Re: Old Hydra Position {the emperor has spoken, Hydra +1}

Post by yanquis1972 »

wow. SMP randomness is a funny thing. when i ran the position rybka settled on Qb5 in seconds.
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