TCEC - Division 3 - Season 1 - Live! Discuss.

[Martin Thoresen]

GM Susan Polgar now also has a blog entry about TCEC:

http://susanpolgar.blogspot.com/

[michiguel]

I deduce that the eval score hast been translated to "white's perspective" in all cases. Is that it? Both Arasan and Gaviota show negative scores.

Go Gaviota!
Miguel

Yes Miguel, all evals are from white's point of view.

I will add this to the rules page.

Thanks!

Gaviota (against Arasan) was having an interesting advantage (+0.50 to +0.80) for a long while and playing well positionally well. It was also a pawn up for a while too. However, the game was very tactical and it was a matter of time until there was a slip and things went down the pipes pretty quickly. It was very difficult when Gaviota was searching 14 plies and Arasan 21, but the game was really good.

Miguel

[Uri Blass]

I deduce that the eval score hast been translated to "white's perspective" in all cases. Is that it? Both Arasan and Gaviota show negative scores.

Go Gaviota!
Miguel

Yes Miguel, all evals are from white's point of view.

I will add this to the rules page.

Thanks!

Gaviota (against Arasan) was having an interesting advantage (+0.50 to +0.80) for a long while and playing well positionally well. It was also a pawn up for a while too. However, the game was very tactical and it was a matter of time until there was a slip and things went down the pipes pretty quickly. It was very difficult when Gaviota was searching 14 plies and Arasan 21, but the game was really good.

Miguel

I believe that not everything is tactics here.

stockfish can see 0.00 score at move 71 and does not see advantage for black from depth 12 so it seems that stockfish has better evaluation than gaviota that saw 0.46 pawns for black at depth 12 based on the pgn.

I am not an expert of evaluation of unbalanced postions but I guess that stockfish's evaluation is simply better here.

Arasan 12.2 - Gaviota 0.8, TCEC - Division III - S1 2010
[d]1r6/4q1k1/6p1/Q3p3/Pp1nP3/1P3n2/1KP3R1/7R b - - 0 1

Analysis by Stockfish 1.9 JA:

71...Rb8-c8
µ (-1.25) Depth: 1 00:00:00
71...Rb8-c8 72.Qa5-a6
± (0.72) Depth: 2 00:00:00
71...g6-g5 72.Qa5-a6
² (0.68) Depth: 2 00:00:00
71...Nf3-g5 72.Qa5-a6
= (0.16) Depth: 2 00:00:00
71...Nf3-g5 72.Rg2xg5 Rb8-c8 73.Qa5xe5+ Qe7xe5 74.Rg5xe5 Rc8xc2+ 75.Kb2-b1
+- (3.31) Depth: 3 00:00:00
71...g6-g5 72.Kb2-b1 Rb8-c8
³ (-0.28) Depth: 3 00:00:00
71...Rb8-f8 72.Qa5-d5 Nf3-h4
³ (-0.32) Depth: 3 00:00:00
71...Rb8-f8 72.Qa5-d5 Nf3-h4 73.Rg2-g3
= (-0.20) Depth: 4 00:00:00
71...Rb8-f8 72.Qa5-b6 Nf3-h4 73.Rg2-g4 Rf8-f6 74.Qb6-b8
= (-0.20) Depth: 5 00:00:00
71...Rb8-f8 72.Qa5-b6 Nf3-h4 73.Rg2-g4 Rf8-f6 74.Qb6-a5
= (-0.12) Depth: 6 00:00:00 9kN
71...g6-g5 72.Kb2-b1 Rb8-h8 73.Rh1xh8 Kg7xh8
³ (-0.28) Depth: 6 00:00:00 12kN
71...g6-g5 72.Kb2-b1 Rb8-h8 73.Rh1xh8 Kg7xh8 74.Qa5-d5 Kh8-g7
³ (-0.28) Depth: 6 00:00:00 12kN
71...g6-g5 72.Kb2-b1 Rb8-h8 73.Rh1xh8 Kg7xh8 74.Qa5-d5 Kh8-g7 75.a4-a5
= (-0.20) Depth: 7 00:00:00 16kN
71...g6-g5 72.Kb2-b1 Rb8-h8 73.Rh1xh8 Kg7xh8 74.Qa5-d5 Kh8-g7 75.a4-a5
= (-0.12) Depth: 7 00:00:00 19kN
71...g6-g5 72.Kb2-b1 Rb8-h8 73.Rh1xh8 Kg7xh8 74.Qa5-b6 Kh8-g8 75.a4-a5
= (0.04) Depth: 7 00:00:00 27kN
71...g6-g5 72.Kb2-b1 Rb8-h8 73.Rh1xh8 Kg7xh8 74.Qa5-b6 Qe7-h7 75.Qb6-b8+ Kh8-g7 76.Qb8-c7+ Kg7-h8 77.Qc7xh7+ Kh8xh7
= (0.12) Depth: 7 00:00:00 32kN
71...g6-g5 72.Kb2-b1 Rb8-f8 73.Qa5-b6 Rf8-f6 74.Qb6-b8 Rf6-f8 75.Qb8-b6
= (0.00) Depth: 8 00:00:01 49kN
71...g6-g5 72.Kb2-b1 Rb8-f8 73.Qa5-b6 Rf8-f6 74.Qb6-b8 Rf6-f8 75.Qb8-b6
= (0.00) Depth: 9 00:00:01 91kN
71...g6-g5 72.Kb2-b1 Rb8-f8 73.Qa5-b6 Rf8-f6 74.Qb6-b8 Rf6-f8 75.Qb8-b6
= (0.00) Depth: 10 00:00:01 104kN
71...Rb8-c8 72.Qa5-b6 Rc8-c6 73.Qb6-b8 Nf3-h4
= (-0.08) Depth: 10 00:00:01 132kN
71...Rb8-c8 72.Qa5-b6 Rc8-c6 73.Qb6-b8 Nf3-h4
= (-0.16) Depth: 10 00:00:01 136kN
71...Rb8-c8 72.Qa5-b6 Rc8-c6 73.Qb6-b8 Nf3-h4 74.Kb2-b1 Nd4-f3 75.Qb8-a8 Qe7-c5
³ (-0.32) Depth: 10 00:00:01 150kN
71...Rb8-c8 72.Qa5-b6 Rc8-c6 73.Qb6-b8 Nf3-h4 74.Kb2-b1 Nd4-f3 75.Rg2-f2 Rc6-f6 76.Qb8-a8 g6-g5 77.Qa8-c8 Qe7-a7
³ (-0.36) Depth: 10 00:00:01 175kN
71...Rb8-c8 72.Qa5-b6 Nf3-h4 73.Rg2-f2 Rc8-c6 74.Qb6-b8 g6-g5 75.Kb2-b1 Qe7-c5 76.Qb8-e8 Nd4-f3 77.Qe8-d7+ Kg7-f8 78.Qd7-d8+ Kf8-f7 79.Qd8-d7+ Kf7-g8 80.Qd7-e8+
= (-0.16) Depth: 11 00:00:01 240kN
71...Rb8-c8 72.Qa5-a6 Rc8-c6 73.Qa6-a8 Nf3-h4 74.Kb2-b1 Rc6-d6 75.Rg2-g4 Nd4-f3 76.a4-a5 Nf3-d2+ 77.Kb1-b2 Rd6-d8 78.Qa8-a6 Rd8-d6
= (0.16) Depth: 12 00:00:01 397kN
71...Rb8-c8 72.Qa5-a6 Rc8-c6 73.Qa6-a8 Nf3-h4 74.Rg2-f2 g6-g5 75.Kb2-b1 Rc6-f6 76.Rf2xf6 Kg7xf6 77.Qa8-h8+ Kf6-g6 78.Qh8-g8+ Kg6-f6 79.Qg8-h8+
= (0.00) Depth: 13 00:00:02 956kN
71...Rb8-c8 72.Qa5-a6 Rc8-c6 73.Qa6-a8 Nf3-h4 74.Rg2-f2 g6-g5 75.Kb2-b1 Rc6-f6 76.Rf2xf6 Kg7xf6 77.Qa8-h8+ Kf6-g6 78.Qh8-g8+ Kg6-f6 79.Qg8-h8+
= (0.00) Depth: 14 00:00:04 1613kN
71...Rb8-c8 72.Qa5-a6 Rc8-c6 73.Qa6-a8 Nf3-h4 74.Rg2-f2 g6-g5 75.Kb2-b1 Rc6-f6 76.Rf2xf6 Qe7xf6 77.Qa8-b7+ Kg7-g6 78.Qb7-a8 Qf6-f2 79.Qa8-e8+ Kg6-h6 80.Qe8-h8+ Kh6-g6 81.Qh8-e8+
= (0.00) Depth: 15 00:00:05 2145kN
71...Rb8-c8 72.Qa5-a6 Rc8-c6 73.Qa6-a8 Nf3-h4 74.Rg2-f2 g6-g5 75.Kb2-b1 Rc6-f6 76.Rf2xf6 Qe7xf6 77.Qa8-b7+ Kg7-g6 78.Qb7-a8 Qf6-f2 79.Qa8-e8+ Kg6-h6 80.Qe8-h8+ Kh6-g6 81.Qh8-e8+
= (0.00) Depth: 16 00:00:07 2963kN
71...Rb8-c8 72.Qa5-a6 Rc8-c6 73.Qa6-a8 Nf3-h4 74.Rg2-f2 g6-g5 75.a4-a5 Rc6-c7 76.Rh1xh4 g5xh4 77.Rf2-g2+ Kg7-f6 78.Qa8-h8+ Kf6-e6 79.Qh8-h6+ Ke6-d7 80.Rg2-g7
= (0.08) Depth: 17 00:00:08 4126kN
71...Rb8-c8 72.Qa5-a6 Rc8-c6 73.Qa6-a8 Nf3-h4 74.Rg2-f2 g6-g5 75.a4-a5 Rc6-c7 76.Rh1xh4 g5xh4 77.Rf2-g2+ Kg7-f6 78.Qa8-h8+ Kf6-e6 79.Qh8-h6+ Ke6-d7 80.Rg2-g7
= (0.16) Depth: 17 00:00:10 5276kN
71...Nd4-e6 72.Qa5-a6 Rb8-f8 73.Qa6-b6 Ne6-f4 74.Rg2-f2 Nf3-h4 75.Rf2-d2 Nh4-f3 76.Rd2-f2
= (0.00) Depth: 17 00:00:12 7807kN
71...Nd4-e6 72.Rg2-g3 Rb8-f8 73.Qa5-b6 Nf3-d4 74.Rg3-h3 Ne6-g5 75.Rh3-h6 Rf8-f6 76.Qb6-b8 Rf6-f8 77.Qb8-b6
= (0.00) Depth: 18 00:00:17 10974kN
71...Nd4-e6 72.Rg2-g3 Rb8-f8 73.Qa5-b6 Nf3-d4 74.Rg3-h3 Ne6-g5 75.Rh3-h6 Rf8-f6 76.Qb6-b8 Rf6-f8 77.Qb8-b6
= (0.00) Depth: 19 00:00:19 12606kN
71...Nd4-e6 72.Rg2-g3 Rb8-f8 73.Qa5-b6 Nf3-d4 74.Rg3-h3 Ne6-g5 75.Rh3-h6 Rf8-f6 76.Qb6-b8 Rf6-f8 77.Qb8-b6
= (0.00) Depth: 20 00:00:26 16687kN
71...Nd4-e6 72.Rg2-g3 Rb8-f8 73.Qa5-b6 Nf3-d4 74.Rg3-h3 Ne6-g5 75.Rh3-h6 Rf8-f6 76.Qb6-b8 Rf6-f8 77.Qb8-b6
= (0.00) Depth: 21 00:00:32 20162kN
71...Nd4-e6 72.Rg2-g3 Rb8-f8 73.Qa5-b6 Nf3-d4 74.Rg3-h3 Ne6-g5 75.Rh3-h6 Rf8-f6 76.Qb6-b8 Rf6-f8 77.Qb8-b6
= (0.00) Depth: 22 00:00:42 26859kN
71...Nd4-e6 72.Rg2-g3 Rb8-f8 73.Qa5-b6 Nf3-d4 74.Rg3-h3 Ne6-g5 75.Rh3-h6 Rf8-f6 76.Qb6-b8 Rf6-f8 77.Qb8-b6
= (0.00) Depth: 23 00:00:58 37477kN
71...Nd4-e6 72.Rg2-g3 Rb8-f8 73.Qa5-b6 Nf3-d4 74.Rg3-h3 Ne6-g5 75.Rh3-h6 Rf8-f6 76.Qb6-b8 Rf6-f8 77.Qb8-b6
= (0.00) Depth: 24 00:01:20 52301kN
71...Nd4-e6 72.Rg2-g3 Rb8-f8 73.Qa5-b6 Nf3-d4 74.Rg3-h3 Ne6-g5 75.Rh3-g3 Rf8-f2 76.Rg3xg5 Qe7xg5 77.Qb6-c7+ Rf2-f7 78.Qc7-b8 Rf7-f8 79.Qb8-b7+ Rf8-f7 80.Qb7-b8
= (0.00) Depth: 25 00:02:08 82387kN
71...Nd4-e6 72.Rg2-g3 Rb8-f8 73.Qa5-b6 Nf3-d4 74.Rg3-h3 Ne6-g5 75.Rh3-g3 Rf8-f2 76.Rg3xg5 Qe7xg5 77.Qb6-c7+ Rf2-f7 78.Qc7-b8 Rf7-f8 79.Qb8-b7+ Rf8-f7 80.Qb7-b8
= (0.00) Depth: 26 00:03:24 130999kN

(, 05.12.2010)

[michiguel]

I deduce that the eval score hast been translated to "white's perspective" in all cases. Is that it? Both Arasan and Gaviota show negative scores.

Go Gaviota!
Miguel

Yes Miguel, all evals are from white's point of view.

I will add this to the rules page.

Thanks!

Gaviota (against Arasan) was having an interesting advantage (+0.50 to +0.80) for a long while and playing well positionally well. It was also a pawn up for a while too. However, the game was very tactical and it was a matter of time until there was a slip and things went down the pipes pretty quickly. It was very difficult when Gaviota was searching 14 plies and Arasan 21, but the game was really good.

Miguel

I believe that not everything is tactics here.

stockfish can see 0.00 score at move 71 and does not see advantage for black from depth 12 so it seems that stockfish has better evaluation than gaviota that saw 0.46 pawns for black at depth 12 based on the pgn.

I am not an expert of evaluation of unbalanced postions but I guess that stockfish's evaluation is simply better here.

I am sure SF evaluation is better, but that is not the point here. The important thing is what move is chosen. Gaviota needs one more ply to see that the evaluation after g5 drops. In fact, SF would choose g5 until depth 10. So, g5 is a natural move (advance a passed pawn) but some plies are needed to realize there is a problem. Depending how you prune or extend, or minor differences in evaluation will help to see the problem quicker, but you need 10-15 plies to see it. Gaviota was searching 13-14 and missed it The fact is, Gaviota's search is primitive and it is not a surprise that suboptimal moves at critical moments kill you. It is obvious I need to work on that (and other things too...)

Miguel

Arasan 12.2 - Gaviota 0.8, TCEC - Division III - S1 2010
[d]1r6/4q1k1/6p1/Q3p3/Pp1nP3/1P3n2/1KP3R1/7R b - - 0 1

Analysis by Stockfish 1.9 JA:

71...Rb8-c8
µ (-1.25) Depth: 1 00:00:00
71...Rb8-c8 72.Qa5-a6
± (0.72) Depth: 2 00:00:00
71...g6-g5 72.Qa5-a6
² (0.68) Depth: 2 00:00:00
71...Nf3-g5 72.Qa5-a6
= (0.16) Depth: 2 00:00:00
71...Nf3-g5 72.Rg2xg5 Rb8-c8 73.Qa5xe5+ Qe7xe5 74.Rg5xe5 Rc8xc2+ 75.Kb2-b1
+- (3.31) Depth: 3 00:00:00
71...g6-g5 72.Kb2-b1 Rb8-c8
³ (-0.28) Depth: 3 00:00:00
71...Rb8-f8 72.Qa5-d5 Nf3-h4
³ (-0.32) Depth: 3 00:00:00
71...Rb8-f8 72.Qa5-d5 Nf3-h4 73.Rg2-g3
= (-0.20) Depth: 4 00:00:00
71...Rb8-f8 72.Qa5-b6 Nf3-h4 73.Rg2-g4 Rf8-f6 74.Qb6-b8
= (-0.20) Depth: 5 00:00:00
71...Rb8-f8 72.Qa5-b6 Nf3-h4 73.Rg2-g4 Rf8-f6 74.Qb6-a5
= (-0.12) Depth: 6 00:00:00 9kN
71...g6-g5 72.Kb2-b1 Rb8-h8 73.Rh1xh8 Kg7xh8
³ (-0.28) Depth: 6 00:00:00 12kN
71...g6-g5 72.Kb2-b1 Rb8-h8 73.Rh1xh8 Kg7xh8 74.Qa5-d5 Kh8-g7
³ (-0.28) Depth: 6 00:00:00 12kN
71...g6-g5 72.Kb2-b1 Rb8-h8 73.Rh1xh8 Kg7xh8 74.Qa5-d5 Kh8-g7 75.a4-a5
= (-0.20) Depth: 7 00:00:00 16kN
71...g6-g5 72.Kb2-b1 Rb8-h8 73.Rh1xh8 Kg7xh8 74.Qa5-d5 Kh8-g7 75.a4-a5
= (-0.12) Depth: 7 00:00:00 19kN
71...g6-g5 72.Kb2-b1 Rb8-h8 73.Rh1xh8 Kg7xh8 74.Qa5-b6 Kh8-g8 75.a4-a5
= (0.04) Depth: 7 00:00:00 27kN
71...g6-g5 72.Kb2-b1 Rb8-h8 73.Rh1xh8 Kg7xh8 74.Qa5-b6 Qe7-h7 75.Qb6-b8+ Kh8-g7 76.Qb8-c7+ Kg7-h8 77.Qc7xh7+ Kh8xh7
= (0.12) Depth: 7 00:00:00 32kN
71...g6-g5 72.Kb2-b1 Rb8-f8 73.Qa5-b6 Rf8-f6 74.Qb6-b8 Rf6-f8 75.Qb8-b6
= (0.00) Depth: 8 00:00:01 49kN
71...g6-g5 72.Kb2-b1 Rb8-f8 73.Qa5-b6 Rf8-f6 74.Qb6-b8 Rf6-f8 75.Qb8-b6
= (0.00) Depth: 9 00:00:01 91kN
71...g6-g5 72.Kb2-b1 Rb8-f8 73.Qa5-b6 Rf8-f6 74.Qb6-b8 Rf6-f8 75.Qb8-b6
= (0.00) Depth: 10 00:00:01 104kN
71...Rb8-c8 72.Qa5-b6 Rc8-c6 73.Qb6-b8 Nf3-h4
= (-0.08) Depth: 10 00:00:01 132kN
71...Rb8-c8 72.Qa5-b6 Rc8-c6 73.Qb6-b8 Nf3-h4
= (-0.16) Depth: 10 00:00:01 136kN
71...Rb8-c8 72.Qa5-b6 Rc8-c6 73.Qb6-b8 Nf3-h4 74.Kb2-b1 Nd4-f3 75.Qb8-a8 Qe7-c5
³ (-0.32) Depth: 10 00:00:01 150kN
71...Rb8-c8 72.Qa5-b6 Rc8-c6 73.Qb6-b8 Nf3-h4 74.Kb2-b1 Nd4-f3 75.Rg2-f2 Rc6-f6 76.Qb8-a8 g6-g5 77.Qa8-c8 Qe7-a7
³ (-0.36) Depth: 10 00:00:01 175kN
71...Rb8-c8 72.Qa5-b6 Nf3-h4 73.Rg2-f2 Rc8-c6 74.Qb6-b8 g6-g5 75.Kb2-b1 Qe7-c5 76.Qb8-e8 Nd4-f3 77.Qe8-d7+ Kg7-f8 78.Qd7-d8+ Kf8-f7 79.Qd8-d7+ Kf7-g8 80.Qd7-e8+
= (-0.16) Depth: 11 00:00:01 240kN
71...Rb8-c8 72.Qa5-a6 Rc8-c6 73.Qa6-a8 Nf3-h4 74.Kb2-b1 Rc6-d6 75.Rg2-g4 Nd4-f3 76.a4-a5 Nf3-d2+ 77.Kb1-b2 Rd6-d8 78.Qa8-a6 Rd8-d6
= (0.16) Depth: 12 00:00:01 397kN
71...Rb8-c8 72.Qa5-a6 Rc8-c6 73.Qa6-a8 Nf3-h4 74.Rg2-f2 g6-g5 75.Kb2-b1 Rc6-f6 76.Rf2xf6 Kg7xf6 77.Qa8-h8+ Kf6-g6 78.Qh8-g8+ Kg6-f6 79.Qg8-h8+
= (0.00) Depth: 13 00:00:02 956kN
71...Rb8-c8 72.Qa5-a6 Rc8-c6 73.Qa6-a8 Nf3-h4 74.Rg2-f2 g6-g5 75.Kb2-b1 Rc6-f6 76.Rf2xf6 Kg7xf6 77.Qa8-h8+ Kf6-g6 78.Qh8-g8+ Kg6-f6 79.Qg8-h8+
= (0.00) Depth: 14 00:00:04 1613kN
71...Rb8-c8 72.Qa5-a6 Rc8-c6 73.Qa6-a8 Nf3-h4 74.Rg2-f2 g6-g5 75.Kb2-b1 Rc6-f6 76.Rf2xf6 Qe7xf6 77.Qa8-b7+ Kg7-g6 78.Qb7-a8 Qf6-f2 79.Qa8-e8+ Kg6-h6 80.Qe8-h8+ Kh6-g6 81.Qh8-e8+
= (0.00) Depth: 15 00:00:05 2145kN
71...Rb8-c8 72.Qa5-a6 Rc8-c6 73.Qa6-a8 Nf3-h4 74.Rg2-f2 g6-g5 75.Kb2-b1 Rc6-f6 76.Rf2xf6 Qe7xf6 77.Qa8-b7+ Kg7-g6 78.Qb7-a8 Qf6-f2 79.Qa8-e8+ Kg6-h6 80.Qe8-h8+ Kh6-g6 81.Qh8-e8+
= (0.00) Depth: 16 00:00:07 2963kN
71...Rb8-c8 72.Qa5-a6 Rc8-c6 73.Qa6-a8 Nf3-h4 74.Rg2-f2 g6-g5 75.a4-a5 Rc6-c7 76.Rh1xh4 g5xh4 77.Rf2-g2+ Kg7-f6 78.Qa8-h8+ Kf6-e6 79.Qh8-h6+ Ke6-d7 80.Rg2-g7
= (0.08) Depth: 17 00:00:08 4126kN
71...Rb8-c8 72.Qa5-a6 Rc8-c6 73.Qa6-a8 Nf3-h4 74.Rg2-f2 g6-g5 75.a4-a5 Rc6-c7 76.Rh1xh4 g5xh4 77.Rf2-g2+ Kg7-f6 78.Qa8-h8+ Kf6-e6 79.Qh8-h6+ Ke6-d7 80.Rg2-g7
= (0.16) Depth: 17 00:00:10 5276kN
71...Nd4-e6 72.Qa5-a6 Rb8-f8 73.Qa6-b6 Ne6-f4 74.Rg2-f2 Nf3-h4 75.Rf2-d2 Nh4-f3 76.Rd2-f2
= (0.00) Depth: 17 00:00:12 7807kN
71...Nd4-e6 72.Rg2-g3 Rb8-f8 73.Qa5-b6 Nf3-d4 74.Rg3-h3 Ne6-g5 75.Rh3-h6 Rf8-f6 76.Qb6-b8 Rf6-f8 77.Qb8-b6
= (0.00) Depth: 18 00:00:17 10974kN
71...Nd4-e6 72.Rg2-g3 Rb8-f8 73.Qa5-b6 Nf3-d4 74.Rg3-h3 Ne6-g5 75.Rh3-h6 Rf8-f6 76.Qb6-b8 Rf6-f8 77.Qb8-b6
= (0.00) Depth: 19 00:00:19 12606kN
71...Nd4-e6 72.Rg2-g3 Rb8-f8 73.Qa5-b6 Nf3-d4 74.Rg3-h3 Ne6-g5 75.Rh3-h6 Rf8-f6 76.Qb6-b8 Rf6-f8 77.Qb8-b6
= (0.00) Depth: 20 00:00:26 16687kN
71...Nd4-e6 72.Rg2-g3 Rb8-f8 73.Qa5-b6 Nf3-d4 74.Rg3-h3 Ne6-g5 75.Rh3-h6 Rf8-f6 76.Qb6-b8 Rf6-f8 77.Qb8-b6
= (0.00) Depth: 21 00:00:32 20162kN
71...Nd4-e6 72.Rg2-g3 Rb8-f8 73.Qa5-b6 Nf3-d4 74.Rg3-h3 Ne6-g5 75.Rh3-h6 Rf8-f6 76.Qb6-b8 Rf6-f8 77.Qb8-b6
= (0.00) Depth: 22 00:00:42 26859kN
71...Nd4-e6 72.Rg2-g3 Rb8-f8 73.Qa5-b6 Nf3-d4 74.Rg3-h3 Ne6-g5 75.Rh3-h6 Rf8-f6 76.Qb6-b8 Rf6-f8 77.Qb8-b6
= (0.00) Depth: 23 00:00:58 37477kN
71...Nd4-e6 72.Rg2-g3 Rb8-f8 73.Qa5-b6 Nf3-d4 74.Rg3-h3 Ne6-g5 75.Rh3-h6 Rf8-f6 76.Qb6-b8 Rf6-f8 77.Qb8-b6
= (0.00) Depth: 24 00:01:20 52301kN
71...Nd4-e6 72.Rg2-g3 Rb8-f8 73.Qa5-b6 Nf3-d4 74.Rg3-h3 Ne6-g5 75.Rh3-g3 Rf8-f2 76.Rg3xg5 Qe7xg5 77.Qb6-c7+ Rf2-f7 78.Qc7-b8 Rf7-f8 79.Qb8-b7+ Rf8-f7 80.Qb7-b8
= (0.00) Depth: 25 00:02:08 82387kN
71...Nd4-e6 72.Rg2-g3 Rb8-f8 73.Qa5-b6 Nf3-d4 74.Rg3-h3 Ne6-g5 75.Rh3-g3 Rf8-f2 76.Rg3xg5 Qe7xg5 77.Qb6-c7+ Rf2-f7 78.Qc7-b8 Rf7-f8 79.Qb8-b7+ Rf8-f7 80.Qb7-b8
= (0.00) Depth: 26 00:03:24 130999kN

(, 05.12.2010)

[Martin Thoresen]

Miguel,

It was a tense battle where Arasan picked the longest straw in the end. I think Gaviota gave it a great challenge.

[Martin Thoresen]

Gaviota (against Arasan) was having an interesting advantage (+0.50 to +0.80) for a long while and playing well positionally well. It was also a pawn up for a while too. However, the game was very tactical and it was a matter of time until there was a slip and things went down the pipes pretty quickly. It was very difficult when Gaviota was searching 14 plies and Arasan 21, but the game was really good.

Miguel

Miguel,

I just noticed that Gaviota's tbhits doesn't get recorded in ChessGUI,
but they are there (after verifying it in the debug files). I have
notified Matthias Gemuh of this.

Just letting you know to assure you that Gaviota is indeed accessing the
tablebases as it should even though it says tbhits=0 for all the moves.

[Matthias Gemuh]

Miguel,

I just noticed that Gaviota's tbhits doesn't get recorded in ChessGUI,
but they are there (after verifying it in the debug files). I have
notified Matthias Gemuh of this.

Just letting you know to assure you that Gaviota is indeed accessing the
tablebases as it should even though it says tbhits=0 for all the moves.

If tbhits are posted in different info string than pv, you need "Parse UCI Junk" to grab them.

Matthias.

[Martin Thoresen]

If tbhits are posted in different info string than pv, you need "Parse UCI Junk" to grab them.

Matthias.

I will enable this. Does it require much more system resources?

[Matthias Gemuh]

If tbhits are posted in different info string than pv, you need "Parse UCI Junk" to grab them.

Matthias.

I will enable this. Does it require much more system resources?

slowdown and more lag

[Martin Thoresen]

slowdown and more lag

Hmm okay, I have the lag-free timing feature enabled so it shouldn't
be a huge difference then. I have also disabled stuff like graphics etc.