Author: chandler yergin
Date: 08:13:14 04/24/05
Go up one level in this thread
Since I am the only one responding.. ;)
I Post again the Diagram, and my proof, that PV Evals are often misleading,
even high ones. They are based, as I said on "Static Positional Factors"
in a Quiescent position, programmed in.
Material, Mobility, King Safty, strong & weak squares etc. etc...
A winning eval +- does not necessarily mean the side so evaluated
has a true winning position.
If the Computer cannot demonstrate a forced line to Mate
after a Search to 40 or 50 Ply; there isn't one.
New game,
[D]2k5/4R3/1p6/1K6/P2b4/8/8/8 w - - 0 1
Analysis by Shredder 8:
1.Kc6
+- (3.18) Depth: 1/1 00:00:06
1.Kc6 Kd8
+- (2.63) Depth: 2/3 00:00:06
1.Kc6 Kd8
+- (2.63) Depth: 2/3 00:00:06
1.Ka6 b5
+- (3.21) Depth: 2/3 00:00:06
1.Ka6 Kd8
+- (3.21) Depth: 2/3 00:00:06
1.Rf7 Kb8
+- (3.22) Depth: 2/3 00:00:06
1.Rf7 Kb8
+- (3.22) Depth: 2/3 00:00:06
1.Rf7 Kd8 2.Kc6
+- (3.16) Depth: 3/4 00:00:06
1.Kc6 Bg1 2.Kb5
+- (3.25) Depth: 3/4 00:00:06
1.Kc6 Kb8 2.Kb5 Bg1
+- (3.58) Depth: 3/5 00:00:06
1.Kc6 Kb8 2.Kb5 Bg1
+- (3.58) Depth: 4/6 00:00:07
1.Kc6 Kb8 2.Kb5 Bg1
+- (3.58) Depth: 5/9 00:00:08
1.Kc6 Kb8 2.Kb5 Bg1
+- (3.58) Depth: 6/10 00:00:10
1.Kc6 Kb8 2.Kb5 Bg1
+- (3.58) Depth: 7/12 00:00:18 4kN, tb=145
1.Kc6 Kb8 2.Kb5 Bg1
+- (3.58) Depth: 8/14 00:00:40 9kN, tb=307
1.Kc6 Kb8 2.Kb5 Bg1
+- (3.58) Depth: 9/14 00:01:08 16kN, tb=521
1.Kc6 Kb8 2.Kb5 Bg1
+- (3.58) Depth: 10/15 00:02:07 26kN, tb=837
1.Kc6 Kb8 2.Kb5 Bg1 3.Rd7
+- (3.58) Depth: 11/18 00:03:08 48kN, tb=1668
1.Kc6 Kb8 2.Kb5 Bg1 3.Rd7
+- (3.58) Depth: 12/15 00:03:26 70kN, tb=2419
1.Kc6 Kb8 2.Kb5 Bg1 3.Rd7
+- (3.58) Depth: 13/16 00:03:50 110kN, tb=3791
1.Kc6 Kb8 2.Kb5 Bg1 3.Rd7
+- (3.58) Depth: 14/18 00:04:03 156kN, tb=5316
1.Kc6 Kb8 2.Kb5 Bg1 3.Rd7
+- (3.58) Depth: 15/17 00:04:13 209kN, tb=7529
1.Kc6 Kb8 2.Kb5 Bg1 3.Rd7
+- (3.58) Depth: 16/18 00:04:19 269kN, tb=9676
1.Kc6 Kb8 2.Kb5 Bg1 3.Rd7
+- (3.58) Depth: 17/19 00:04:23 344kN, tb=12604
1.Kc6 Kb8 2.Kb5 Bg1 3.Kc6
+- (3.58) Depth: 18/24 00:04:31 486kN, tb=18240
1.Kc6 Kb8 2.Kb5 Bg1 3.Kc6 Ka8 4.Re8+ Ka7 5.Rd8
+- (3.58) Depth: 19/22 00:04:52 837kN, tb=31509
1.Kc6 Kb8 2.Kb5 Bg1 3.Kc6 Ka8 4.Re8+ Ka7 5.Rd8
+- (3.58) Depth: 20/22 00:05:06 1090kN, tb=42281
1.Kc6 Kb8 2.Kb5 Bg1 3.Kc6 Ka8 4.Re8+ Ka7 5.Rd8
+- (3.58) Depth: 21/22 00:05:52 1850kN, tb=69072
1.Kc6 Kb8 2.Kb5 Bg1 3.Kc6 Ka8 4.Re8+ Ka7 5.Rd8
+- (3.58) Depth: 22/24 00:06:28 2324kN, tb=89168
1.Kc6 Kb8 2.Kb5 Bg1 3.Kc6 Ka8 4.Re8+ Ka7 5.Rd8
+- (3.58) Depth: 23/24 00:07:32 2846kN, tb=113425
1.Kc6 Kb8 2.Kb5 Bg1 3.Kc6 Ka8 4.Re8+ Ka7 5.Rd8
+- (3.58) Depth: 24/39 00:09:31 4139kN, tb=166591
1.Kc6 Kb8 2.Kb5 Bg1 3.Kc6 Ka8 4.Re8+ Ka7 5.Rd8 Bf2 6.Rd2 Bg1 7.Rd1 Be3 8.Rd7+
Kb8 9.Rd3 Bg1 10.Kb5
+- (3.58) Depth: 25/28 00:12:51 8807kN, tb=316106
1.Kc6 Kb8 2.Kb5 Bg1 3.Kc6 Ka8 4.Re8+ Ka7 5.Rd8 Bf2 6.Rd2 Bg1 7.Rd1 Be3 8.Rd7+
Kb8 9.Rd3 Bg1 10.Kb5
+- (3.33) Depth: 26/40 00:17:07 30161kN, tb=894029
1.Kc6 Kb8 2.Re8+ Ka7 3.Kb5 Bf2 4.Rf8 Bg1 5.Rf1 Bd4 6.Rf4 Bg1
+- (3.14) Depth: 26/40 00:33:45 574815kN, tb=8490249
1.Re4 Bf2 2.Re2 Bg1 3.Re1 Bf2 4.Rf1 Be3 5.Rf3 Bg1
+- (3.15) Depth: 26/40 00:40:32 631645kN, tb=9648973
1.Re4 Bf2 2.Re2 Bg1 3.Re1 Bf2 4.Rf1 Be3 5.Rf3 Bg1
+- (3.15) Depth: 26/40 00:40:33 631787kN, tb=9650599
1.Re4 Bf2 2.Re2 Bg1 3.Re1 Bf2 4.Rf1 Be3 5.Rf3 Bg1 6.Rg3 Bf2 7.Rg6 Kb8 8.Kc6 Ka8
9.Kc7 Bd4 10.Rh6
+- (3.15) Depth: 27/32 00:41:17 644140kN, tb=9794512
1.Kc6 Kb8 2.Kd5 Bf6 3.Re6 Bd8 4.Kc6 Ka7 5.Kb5 Kb7
+- (3.16) Depth: 27/38 00:42:45 647885kN, tb=9925133
1.Kc6 Kb8 2.Kd5 Bf2 3.Rf7 Bc5 4.a5 Bg1 5.Rg7 Bf2 6.a6 b5 7.Kc6 b4 8.Kb5 b3 9.Kc4
Ka8 10.Re7 b2 11.Rb7 b1Q 12.Rb2 Qxb2 13.Kd5 Be3 14.Kc4
+- (3.16) Depth: 27/38 00:43:29 649767kN, tb=10004329
1.Kc6 Kb8 2.Rf7 Be3 3.Rf8+ Ka7 4.Kb5 Kb7 5.Rf3 Bd4 6.Rd3 Bf2 7.Rd7+ Kb8 8.Ka6
Bg1 9.Rd8+ Kc7 10.Ka7
+- (3.14) Depth: 28/42 01:03:35 1224126kN, tb=14702492
1.Re4 Bf2 2.Re2 Bg1 3.Re1 Bf2 4.Rf1 Be3 5.Rf3 Bg1 6.Kc6 Kb8 7.Rd3 Ka7 8.Rd6
+- (3.15) Depth: 28/42 01:04:12 1226297kN, tb=14728798
1.Re4 Bf2 2.Re2 Bg1 3.Re1 Bf2 4.Rf1 Be3 5.Rf3 Bg1 6.Kc6 Kb8 7.Rd3 Ka7 8.Rd6
+- (3.15) Depth: 28/42 01:04:24 1227415kN, tb=14740034
1.Re4 Bf2 2.Re2 Bg1 3.Re1 Bf2 4.Re2 Bg1 5.Re1 Bf2 6.Re2 Bg1
+- (3.15) Depth: 29/34 01:10:28 1232930kN, tb=14863174
1.Re4 Bf2 2.Re2 Bg1 3.Re1 Bf2 4.Re2 Bg1 5.Re1 Bf2 6.Re2 Bg1
+- (3.15) Depth: 30/34 01:16:25 1237199kN, tb=15005046
1.Re4 Bg1 2.Re1 Bd4 3.Kc6 Kb8 4.Re8+ Ka7 5.Kb5 Bf2 6.Re7+ Kb8 7.Kc6 Ka8 8.Re8+
Ka7 9.Kb5 Kb7 10.Re7+ Kb8 11.Kc6 Ka8 12.Re8+ Ka7 13.Kb5 Kb7 14.Re7+ Kb8 15.Kc6
+- (3.14) Depth: 31/50 01:50:33 1839992kN, tb=17361544
1.Kc4 Bg1 2.Re1 Bh2 3.Kb5 Bc7 4.Kc6 Bd6 5.Kxd6 Kb7
+- (3.15) Depth: 31/50 02:06:56 1883262kN, tb=18145762
1.Kc4 Bg1 2.Re1 Bf2 3.Re2 Bg1 4.Rg2 Be3 5.Kd5 Kb7 6.Rg3 Bf2 7.Kc4
+- (3.15) Depth: 31/50 02:09:05 1888848kN, tb=18409960
1.Kc4 Bg1 2.Re1 Bf2 3.Re2 Bg1 4.Rg2 Be3 5.Rg7 Kb8 6.Kd5 Bh6 7.Rg6 Be3 8.Kc4
+- (3.15) Depth: 32/47 05:03:19 8092508kN, tb=35839534
Games are not won or lost by ce's either.
The ce's after the decimal; (0.xx) are the static positional values.
If a Material advantage is not found for either side of at least +- (3.xx)
the Computer is telling you it is a Draw!
If you don't believe me, ask ChessBase!
(, 24.04.2005)
The game is a Draw!
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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