Which one is wrong?

[Eelco de Groot]

Hi Eelco!

Voted against 1...a3(?) because of 2.b3(!) (...Rd2 in your latest output- line seems ? to me too) :

[d]4k3/1p4pb/r1n1p2p/3p4/3P4/p3B3/PP3PPP/2RR1K2 w - - 0 1

Analysis by Houdini 6.02 Pro x64-popc:

2.b3 Nb4 3.Rc7 Nxa2 4.Bd2 Rb6 5.Ra1 Rxb3 6.Rxa2 Bb1 7.Ra1 a2 8.Ke1 g5 9.Kd1 Rd3 10.Rxb7 Rxd4 11.Ra7 Rg4 12.g3 Rc4 13.R7xa2 Bxa2 14.Rxa2 Kf7 15.Ra6 g4 16.Bxh6 Kf6 17.Ke2 Kf5 18.Kd3 Rc7 19.Be3 e5 20.Ra7 Rxa7 21.Bxa7 Ke6 22.Bc5 Kf5 23.Bb4 Ke6 24.Bf8 Kf5
+- (2.53) Depth: 34/69 00:08:34 14476MN

That was with full hash after some Forward- Backward of the one and the other 1...a3- lines, as well as this one after your and other ones with 1...Rb6:

[d]4k3/1p4pb/1rn1p2p/3p4/p2P4/4B3/PP3PPP/2RR1K2 w - - 0 1

Analysis by Houdini 6.02 Pro x64-popc:

2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+ 5.Ke1 g5 6.Bd2 Nc6 7.Rxb3 Rxb3 8.axb3 Nxd4 9.Rc3 Bf5 10.Rc7 Nxb3 11.Rxb7 Nc5 12.Rc7 Nd7 13.f3 Bd3 14.Kf2 Bb5 15.Rc8+ Kf7 16.h4 gxh4 17.Rh8 Ne5 18.Rh7+ Kf6 19.Rxh6+ Ng6 20.Rh5 e5 21.Bg5+ Kg7 22.Bxh4 Nf4 23.Rf5 Bd7 24.Rf6 Ne6 25.Ke3 Nf4 26.g3 Ng2+ 27.Kf2 Nxh4 28.Rd6 Be8 29.gxh4 d4 30.Rd8
+/- (1.38) Depth: 35/72 00:10:07 16654MN

Not quite sure if Black's lost already after 1...Rb6 too (in output line 5...g5 seems to be suboptimal to me already, at the end it's clear +- anyhow yet), but I'd be rather sure about that with 1...a3(?) I guess

Hi Peter, thanks for that!

I do think I may have found what went wrong, at least I hope so. It is not the new scalefactor that causes 1...a3 but some other rules in evaluate.cpp I think. This was not the correct evaluate.cpp from my version _014, but a version _050 much later and it messes up the whole defence. A second version also just plays 1...a3 although the Scalefactor (that rules the drawishness of the unequal colour bishop endgame) is very different.

So 1...a3 is one of the worse moves to play actually I fdon't think a match with that move would be necessary...

I did a seventeen best moves MultiPV (with the correct _014 version) and 1...a3 came in exactly last of those seventeen moves, out of a 31 possible moves...


4k3/1p4pb/r1n1p2p/3p4/p2P4/4B3/PP3PPP/2RR1K2 b - -

Engine: Ancalagon_014 HT (256 MB)
by T. Romstad, M. Costalba, J. Kiiski, G.

36 702:45 +1.54 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.axb3 Rxb3
5.Rc7 Nc4 6.Rd1 Rxe3 7.fxe3 Nxe3+
8.Ke1 Nxd1 9.Kxd1 Kf8 10.Rxb7 Be4
11.g3 Kg8 12.Kd2 Kh7 13.Kc3 Kg6
14.Kb4 Bf5 (242.716.524.293) 5756

35 702:45 +1.76 1...Bf5 2.Bf4 g5 3.Be5 Kf7 4.f3 h5
5.Rc3 h4 6.Kf2 Kg6 7.Bc7 Ra8 8.Ke3 g4
9.Rd2 Rc8 10.fxg4 Bxg4 11.Bb6 Ra8
12.b4 Nxb4 13.Rc7 Bf5 14.Bc5 Nc6 (242.716.524.293) 5756

35 702:45 +1.78 1...g5 2.h4 Rb6 3.Rd2 gxh4 4.Bxh6 Bf5
5.Bf4 h3 6.gxh3 Bxh3+ 7.Ke1 Rb4
8.Be5 Rc4 9.Rxc4 dxc4 10.f3 b5
11.Rh2 Bf5 12.Rh8+ Kd7 13.a3 Ne7
14.Rb8 Kc6 (242.716.524.293) 5756

35 702:45 +1.98 1...Ra5 2.Rd2 Rb5 3.Bf4 g5 4.Be5 g4
5.Ke2 Bf5 6.f3 h5 7.Rc3 Kd7 8.Kf2 Na5
9.b3 axb3 10.Rb2 gxf3 11.gxf3 b6
12.axb3 Ke8 13.Ra2 Rxb3 14.Rxb3 Nxb3 (242.716.524.293) 5756

35 702:45 +2.01 1...Bg6 2.f3 Rb6 3.Rd2 Rb4 4.Kf2 Ke7
5.h4 Be8 6.Bf4 Kf6 7.Ke3 Ke7 8.Be5 g6
9.Kf4 Kf7 10.Bd6 Rb6 11.g4 Bd7
12.Ke3 Rb5 13.Bc7 Ke8 14.Kf4 Kf7 (242.716.524.293) 5756

35 702:45 +2.10 1...Ke7 2.h4 Kd7 3.Bf4 Rb6 4.Rd2 Rb4
5.f3 b5 6.Kf2 Rc4 7.Rxc4 bxc4 8.a3 Ke7
9.Be5 Kf7 10.Ke3 Bb1 11.h5 Bh7 12.g4 Bb1
13.Rh2 Bd3 14.Rg2 Bf1 (242.716.524.293) 5756

35 702:45 +2.12 1...Kd7 2.Bf4 g5 3.Be5 Rb6 4.Rd2 g4
5.f3 h5 6.Kf2 Rb4 7.Kg3 gxf3 8.gxf3 h4+
9.Kf4 h3 10.Rg1 Bf5 11.Rg7+ Kc8
12.Bd6 Rc4 13.b3 axb3 14.Rc7+ Kd8 (242.716.524.293) 5756

35 702:45 +2.24 1...Kd8 2.Bf4 g5 3.Be5 g4 4.f3 gxf3
5.gxf3 Bf5 6.Rd2 Ke8 7.Ke1 h5 8.Rg2 Rb6
9.Rc3 h4 10.b3 Kf8 11.Rg5 axb3
12.Rxb3 Rxb3 13.axb3 b5 14.Rh5 Bc2 (242.716.524.293) 5756

35 702:45 +2.24 1...Kf7 2.h4 Rb6 3.Rd2 Rb4 4.f3 Ke7
5.Kf2 Bg6 6.g4 Be8 7.Bf4 Kf7 8.Ke3 Rb5
9.h5 Kg8 10.Kf2 Rb4 11.Bd6 Rb5
12.Be5 Kh7 13.Bc7 Rb4 14.Ke3 Kg8 (242.716.524.293) 5756

35 702:45 +2.24 1...Bg8 2.Bf4 Bf7 3.Be5 Kf8 4.f3 Kg8
5.g4 Rb6 6.Rd2 Kh7 7.Kf2 Rb4 8.h4 h5
9.Bf4 Rb5 10.Bc7 Rb4 11.Bd6 Rb5
12.Bf4 Be8 13.Bc7 Bf7 14.Ke3 Bg6 (242.716.524.293) 5756

35 702:45 +2.25 1...h5 2.Bf4 Rb6 3.Rd2 h4 4.f3 Rb4
5.Kf2 Bf5 6.Bd6 Rb6 7.Be5 Kf7 8.Ke3 Ra6
9.Kf4 Kg6 10.g4 hxg3 11.hxg3 Kf7
12.g4 Bh7 13.Ke3 Bg8 14.Rh2 Rb6 (242.716.524.293) 5756

35 702:45 +2.25 1...Kf8 2.f3 Bg6 3.Bf4 Be8 4.Kf2 Kf7
5.h4 Rb6 6.Rd2 Rb4 7.Ke3 Bd7 8.h5 Ke7
9.Be5 Kf7 10.Rdc2 Kg8 11.Bd6 Rb6
12.g4 Rb5 13.Be5 Be8 14.Rg2 Kh7 (242.716.524.293) 5756

35 702:45 +2.25 1...Ra8 2.f3 Kf7 3.h4 Kg8 4.h5 Ra6
5.Bf4 Kh8 6.Kf2 Bg8 7.g4 Bf7 8.Be5 Kh7
9.Rc5 Rb6 10.Rd2 Be8 11.Ke3 Ra6
12.Rcc2 Ra8 13.Rc1 Ra6 14.Rg2 Ra8 (242.716.524.293) 5756

35 702:45 +2.28 1...Ne7 2.Bf4 Rb6 3.Rd2 Nc6 4.f3 Kf7
5.h4 Bg6 6.g4 Kg8 7.Kf2 Rb5 8.Be5 Bh7
9.Bd6 Ra5 10.Ke3 Ra8 11.Be5 Bg6
12.h5 Be8 13.Ke2 Kf7 14.Kf2 Kg8 (242.716.524.293) 5756

35 702:45 +2.28 1...Ra7 2.Bf4 Ra8 3.h4 Kf7 4.f3 Bg6
5.Be5 Kg8 6.Ke2 Rf8 7.g4 Ra8 8.Rg1 Be8
9.h5 Kh7 10.Kf2 Rc8 11.Rgd1 Kg8
12.Rd2 Rd8 13.Bf4 Ra8 14.Rdd1 Rc8 (242.716.524.293) 5756

35 702:45 +2.28 1...Be4 2.f3 Bf5 3.g4 Bh7 4.Bf4 Rb6
5.Rd2 Bg6 6.Be5 Kf7 7.h4 Kg8 8.Bf4 Kf8
9.Bd6+ Kg8 10.h5 Be8 11.Be5 Bd7
12.Kf2 Kf8 13.Ke2 Kf7 14.Rdc2 Nxe5 (242.716.524.293) 5756

35 702:45 +2.48 1...a3 2.b3 Kf7 3.f3 Kg8 4.h4 Bg6
5.Kf2 Ra8 6.Rc5 Ra6 7.Bf4 Be8 8.Rcc1 b6
9.g4 Bd7 10.h5 Kh7 11.Be5 Ra7 12.Bd6 Ra8
13.Rg1 b5 14.g5 Be8 (242.716.524.293) 5756

I hope I now have found the correct evaluate.cpp version in which I can insert the new experimental Scalefactor At least now I know what result I'm aiming for

[peter]

Don't get me wrong, Jon, as I said, I do believe White wins after 1...Rb6 too probably, but it isn't as sure and as easy as after e.g. 1...a3, don't you think so too?

And that's what Eelco asked, wasn't it?

That's one of these positions where you can say, nevermind, it's lost anyhow, let's stop playing.
But if you still hope for a mistake of your opponent and you want to go on trying, you yet have to chose a move, haven't you

[Nordlandia]

Peter@ engines don't like a3. My concensus is that the position is lost anyway.

TC: 90m+60s
Hash: 4096 MB

[pgn][Event "i5-5200U, Slow 90m+60s"]
[Site "DESKTOP-DD1B2QU"]
[Date "2017.10.16"]
[Round "1"]
[White "Houdini 6.02 Pro x64-pext"]
[Black "Stockfish 131017 64 BMI2"]
[Result "1-0"]
[Annotator "1.29;1.46"]
[SetUp "1"]
[FEN "4k3/1p4pb/r1n1p2p/3p4/p2P4/4B3/PP3PPP/2RR1K2 b - - 0 1"]
[PlyCount "81"]
[TimeControl "5400+60"]

1... Rb6 {1.46/38 269 Both last book move} 2. Rd2 {1.29/32 225} Na5 {1.46/35 45
} 3. b3 {1.34/33 390} axb3 {1.38/36 113} 4. axb3 {1.36/33 123} Rxb3 {1.60/32 20
} 5. Rc7 {1.35/33 138} Bd3+ {1.49/36 238} 6. Ke1 {1.47/31 74} Nc4 {1.51/37 193}
7. Rd1 {1.32/29 28} g5 {1.62/38 273 (Kf8)} 8. Ra1 {1.47/28 102} Na3 {1.79/37
225 (Kd8)} 9. Kd1 {1.37/30 192} Ba6 {1.50/37 149 (Kd8)} 10. Rh7 {1.48/29 130}
Bd3 {1.65/36 24 (g4)} 11. Rxh6 {1.49/29 119} g4 {1.55/36 117} 12. Rxe6+ {
1.42/32 263} Kf7 {1.98/36 516} 13. Rh6 {1.24/31 249} Bf1 {1.81/33 103 (Be4)}
14. g3 {1.41/29 117} Bg2 {1.86/37 208} 15. Rh8 {1.47/31 160 (Rc1)} Ke6 {
1.77/34 156 (Bf3+)} 16. Ra8 {1.59/29 106} Bf3+ {2.15/39 280} 17. Kd2 {1.64/28
29 (Kc1)} Nc4+ {2.17/41 345} 18. Kc2 {1.78/30 116} Rb6 {2.17/40 35} 19. Bc1 {
1.78/31 167 (Kc3)} Be4+ {1.86/34 105} 20. Kd1 {1.79/31 219} Rb3 {2.09/35 63}
21. Ke1 {1.76/32 177} Kf5 {2.25/40 237 (Rd3)} 22. Rf8+ {1.81/31 175} Ke6 {
2.24/39 36} 23. Rh8 {1.88/29 37 (Rb8)} Rd3 {2.25/38 248 (Nd6)} 24. Rh6+ {
1.85/33 280} Kf7 {2.55/40 274} 25. h3 {1.92/33 136 (h4)} gxh3 {2.55/40 129} 26.
Ke2 {1.96/33 232} Kg7 {2.70/38 248 (Rc3)} 27. Rxh3 {1.97/30 245} Rc3 {2.77/38
108 (Rb3)} 28. Bf4 {2.17/29 102 (Ke1)} Kg6 {2.86/38 442 (Rb3)} 29. Rh8 {
2.24/33 779} Bf3+ {3.14/37 736 (Kf5)} 30. Kf1 {2.45/29 102} Rd3 {3.52/35 312}
31. Rf8 {2.55/31 112 (Rg8+)} Be4 {3.22/35 64} 32. Ke2 {2.57/28 31} Rb3 {
3.52/37 390 (Rc3)} 33. Bc1 {2.96/28 87} Rc3 {3.41/36 93 (Kg7)} 34. f3 {3.12/28
137} Kg7 {3.72/37 170} 35. Rf4 {3.12/27 0} Bd3+ {4.43/34 535} 36. Kf2 {3.35/30
99} Rc2+ {4.43/26 8} 37. Kg1 {3.45/30 127} Rc3 {4.52/33 113} 38. Kh2 {3.68/30
632 (Rh4)} Rb3 {3.95/28 59} 39. Kg2 {3.68/33 107 (Rg4+)} Rb1 {4.22/29 61 (Rc3)}
40. Rxb1 {4.37/29 70} Bxb1 {4.71/33 60} 41. Rg4+ {4.63/28 83} Kf7 {4.99/31 60
adjud.} 1-0

[/pgn]

[peter]

Peter@ engines don't like a3. My concensus is that the position is lost anyway.

Ok, Jon, let's see it as uncomplicated as that, you're simply probably right anyhow.
Point remains (and there's even a poll about it ), that Eelco wanted to know, which one move was better or let's say it in your way, which one was worse, you see?
Let's leave it for good

[Eelco de Groot]

Hi Eelco!

Voted against 1...a3(?) because of 2.b3(!) (...Rd2 in your latest output- line seems ? to me too) :

[d]4k3/1p4pb/r1n1p2p/3p4/3P4/p3B3/PP3PPP/2RR1K2 w - - 0 1

Analysis by Houdini 6.02 Pro x64-popc:

2.b3 Nb4 3.Rc7 Nxa2 4.Bd2 Rb6 5.Ra1 Rxb3 6.Rxa2 Bb1 7.Ra1 a2 8.Ke1 g5 9.Kd1 Rd3 10.Rxb7 Rxd4 11.Ra7 Rg4 12.g3 Rc4 13.R7xa2 Bxa2 14.Rxa2 Kf7 15.Ra6 g4 16.Bxh6 Kf6 17.Ke2 Kf5 18.Kd3 Rc7 19.Be3 e5 20.Ra7 Rxa7 21.Bxa7 Ke6 22.Bc5 Kf5 23.Bb4 Ke6 24.Bf8 Kf5
+- (2.53) Depth: 34/69 00:08:34 14476MN

That was with full hash after some Forward- Backward of the one and the other 1...a3- lines, as well as this one after your and other ones with 1...Rb6:

[d]4k3/1p4pb/1rn1p2p/3p4/p2P4/4B3/PP3PPP/2RR1K2 w - - 0 1

Analysis by Houdini 6.02 Pro x64-popc:

2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+ 5.Ke1 g5 6.Bd2 Nc6 7.Rxb3 Rxb3 8.axb3 Nxd4 9.Rc3 Bf5 10.Rc7 Nxb3 11.Rxb7 Nc5 12.Rc7 Nd7 13.f3 Bd3 14.Kf2 Bb5 15.Rc8+ Kf7 16.h4 gxh4 17.Rh8 Ne5 18.Rh7+ Kf6 19.Rxh6+ Ng6 20.Rh5 e5 21.Bg5+ Kg7 22.Bxh4 Nf4 23.Rf5 Bd7 24.Rf6 Ne6 25.Ke3 Nf4 26.g3 Ng2+ 27.Kf2 Nxh4 28.Rd6 Be8 29.gxh4 d4 30.Rd8
+/- (1.38) Depth: 35/72 00:10:07 16654MN

Not quite sure if Black's lost already after 1...Rb6 too (in output line 5...g5 seems to be suboptimal to me already, at the end it's clear +- anyhow yet), but I'd be rather sure about that with 1...a3(?) I guess

4. Rb2 is a good move from Houdini, Ancalagon in the _014 versions, and presumably Stockfish a bit, have trouble finding, but have not checked it with Stockfish. Ancalagon now finds it and instead of 5...g5 we have 5...Bc4 as main line I am happy with the new main line but I have not tested this version in games yet. It has several small changes to Scalefactor mainly but a little bit also to Bad bishop scoring. The bad bishop in opposite coloured mid- and endgame gets extra penalty for pawns on the same color but now (very smal amount at the moment, I don't even know if effect can be Elo measured) bonus points for attacking opponent pawns. I think the last change does not do very much, it is very indirect though and could have all sorts hidden effects , it is very tricky This mainly increases the value of both bishops in opp. col. bishops if there are many pawns, i.e. mid game, that at least is is what I want to achieve because:

In the middlegame, on the other hand, opposite-colored bishops have a different effect. With many pieces on the board we are not concerned so much with promoting pawns, as with attacking enemy weaknesses and threatening the king. Since one bishop can attack what the other bishop cannot defend, it is as if the player with the initiative has an extra piece! This makes the initiative very valuable, sharpening the situation and making the interplay of attack and defense crucial.

From: https://www.chess.com/article/view/atta ... ed-bishops

This has never worked to my knowlede in Stockfish, although I don't know how often it was tried, and if it is even possible/true. But in this change both bishops get extra points so the difference is towards other pieces (the value goes up, then it makes sense to exchange them with Knights which is what you want if opponent has a good bishop because you can't do it with your opposite colour bishop. And it depends on the 'cooperation' with opponent pawns just like in the material imbance table. You can't put it in the table because it depends on the colour of the squares they are on (And Stockfish Scalefactor thus far only works for the endgame part of score! So I could not do it here, but that may be good, I had to make it just a bit more specific ) So it is tricky but in theory it is sound, but you don't know any side effects that come from destabilizing the tuning in imbalance table for instance...
Of course you would want bonus points from opp. col. bishop in King Safety, pinning, threats too but I have gone for the simple first thing that came to my mind. Simply attacking opponent pawns because he can't defend them with his bishop is not really high level GM strategy but who knows...

[D]4k3/1p4pb/r1n1p2p/3p4/p2P4/4B3/PP3PPP/2RR1K2 b - -

Engine: Ancalagon_055 HT (256 MB)
by T. Romstad, M. Costalba, J. Kiiski, G. LInscott

22/32 0:01 +1.13 1...Rb6 2.Rd2 Na5 3.Rc7 Nc4 4.Rd1 Nxe3+
5.fxe3 Rxb2 6.Rxg7 Be4 7.Rc1 Bd3+
8.Kg1 Bc4 9.a3 b5 10.Ra1 Re2 11.Rh7 Rxe3
12.Rxh6 Kd7 13.g3 e5 14.dxe5 (19.458.037) 11112

23/33 0:02 +1.15 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.axb3 Rxb3
5.Rc7 Bd3+ 6.Ke1 Nc4 7.Rd1 Kf8 8.Bf4 Kg8
9.f3 b5 10.Rb7 b4 11.h4 Na5 12.Rb8+ Kh7
13.Rb6 Nc4 14.Rxe6 Bg6 (32.020.976) 11068

24/35 0:03 +1.22-- 1...Rb6 2.Rd2 Na5 (42.608.084) 11209

24/35 0:04 +1.26 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.axb3 Rxb3
5.Rc7 Bd3+ 6.Ke1 Nc4 7.Rd1 Kf8 8.Bf4 Kg8
9.f3 b5 10.Kf2 b4 11.Rb7 g5 12.Be5 Rb2+
13.Kg3 Bb1 14.Rc1 b3 (50.375.691) 11234

25/35 0:04 +1.19++ 1...Rb6 (56.370.080) 11301

25/35 0:05 +1.15 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.axb3 Rxb3
5.Rc7 Bd3+ 6.Ke1 Nc4 7.Rd1 Kf8 8.Bf4 Kg8
9.f3 b5 10.Kf2 b4 11.Ra1 Ra3 12.Rxa3 bxa3
13.Ra7 Bb1 14.Be5 g5 (59.364.848) 11307

26/36 0:05 +1.11 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.axb3 Rxb3
5.Rc7 Bd3+ 6.Ke1 Nc4 7.Rd1 Kf8 8.Bf4 Kg8
9.f3 b5 10.Kf2 b4 11.Ra1 Ra3 12.Rxa3 bxa3
13.Ra7 Bb1 14.Be5 g5 (67.248.529) 11317

27/36 0:07 +1.18-- 1...Rb6 2.Rd2 (81.382.305) 11310

27/39 0:11 +1.25-- 1...Rb6 2.Rd2 (132.556.470) 11215

27/39 0:15 +1.18++ 1...Rb6 (174.552.387) 10987

27/39 0:16 +1.19 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.axb3 Rxb3
5.Rc7 Bd3+ 6.Ke1 Nc4 7.Rd1 Kf8 8.Bf4 Kg8
9.f3 b5 10.Kf2 b4 11.Rb7 Kh7 12.Re1 Rb2+
13.Kg1 b3 14.Rxe6 Rb1+ (182.477.996) 10960

28/39 0:18 +1.26-- 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.axb3 Rxb3
5.Rc7 Bd3+ 6.Ke1 Nc4 7.Rd1 Kf8 8.Bf4 Kg8
9.Be5 Nxe5 10.dxe5 Ba6 11.f4 g5
12.Re7 gxf4 13.Rxe6 Rb2 14.Rxd5 Rxg2 (201.853.221) 10904

28/41 0:20 +1.28 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.axb3 Rxb3
5.Rc7 Bd3+ 6.Ke1 Nc4 7.Rd1 Kf8 8.Bf4 Kg8
9.Be5 Nxe5 10.dxe5 Bc4 11.f4 Re3+
12.Kf2 Re2+ 13.Kg3 Re3+ 14.Kh4 Re2 (223.358.406) 10855

29/44 0:28 +1.35-- 1...Rb6 2.Rd2 Na5 (302.701.395) 10724

29/44 0:28 +1.35 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.axb3 Rxb3
5.Rc7 Bd3+ 6.Ke1 Nc4 7.Rd1 Kf8 8.Bf4 Kg8
9.Be5 Nxe5 10.dxe5 Bc4 11.f4 Rb2
12.Rd2 Rb1+ 13.Kf2 Kf8 14.Ke3 Re1+ (305.974.462) 10723

30/44 0:28 +1.28++ 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.axb3 Rxb3
5.Rc7 Bd3+ 6.Ke1 Nc4 7.Rd1 Kf8 8.Bf4 Kg8
9.Be5 Nxe5 10.dxe5 Bc4 11.f4 b5
12.Ra1 Rb2 13.Ra8+ Kh7 14.g4 (310.593.545) 10717

30/44 0:31 +1.35-- 1...Rb6 2.Rd2 (335.679.586) 10700

30/44 0:37 +1.28++ 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.axb3 Rxb3
5.Rc7 Bd3+ 6.Ke1 g5 7.Ra2 b6 8.Ra1 Rb4
9.Bd2 Rc4 10.Rxc4 Nxc4 11.h4 gxh4
12.Bxh6 Kd7 13.Bg5 Kd6 (400.344.425) 10642

30/44 0:39 +1.34 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.axb3 Rxb3
5.Rc7 Bd3+ 6.Ke1 Nc4 7.Rd1 Kf8 8.Bf4 Kg8
9.Be5 Nxe5 10.dxe5 h5 11.f3 Bc4
12.Rd2 b5 13.Kf2 Kf8 14.Rb7 Rb1 (423.635.859) 10618

31/44 0:41 +1.35 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.axb3 Rxb3
5.Rc7 Bd3+ 6.Ke1 Nc4 7.Rd1 Kf8 8.Bf4 Kg8
9.Be5 Nxe5 10.dxe5 h5 11.f3 b5
12.Rd2 Bc4 13.Kf2 h4 14.Re7 Rb1 (437.993.435) 10600

32/44 0:44 +1.27++ 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.axb3 Rxb3
5.Rc7 Bd3+ 6.Ke1 Nc4 7.Rd1 g5 8.Ra1 Na3
9.Kd1 Kd8 10.Rg7 b5 11.Bd2 Bf1 12.g3 Bh3
13.Rh7 (467.347.709) 10567

32/44 0:54 +1.35-- 1...Rb6 2.Rd2 (579.351.129) 10542

32/44 0:59 +1.37 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.axb3 Rxb3
5.Rc7 Bd3+ 6.Ke1 Nc4 7.Rd1 Kf8 8.Bf4 Kg8
9.Be5 Nxe5 10.dxe5 h5 11.f3 Bc4
12.Kf2 b5 13.Re7 h4 14.Rd2 d4 (622.963.656) 10544

33/51 1:15 +1.44-- 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.axb3 Rxb3
5.Rc7 Bd3+ 6.Ke1 Nc4 7.Rd1 Kf8 8.Bf4 Kg8
9.Be5 Nxe5 10.dxe5 h5 11.f3 b5
12.Rd2 Bc4 13.Kf2 h4 14.Re7 d4 (790.565.014) 10466

33/51 1:25 +1.37++ 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.axb3 Rxb3
5.Rc7 Bd3+ 6.Ke1 Nc4 7.Rd1 Nxe3
8.fxe3 Kf8 9.Kf2 Kg8 10.Rd2 Be4
11.Ra2 Kh7 12.g4 b5 13.Raa7 Rb2+
14.Kg3 (894.780.373) 10428

33/51 1:31 +1.26 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.axb3 Rxb3
5.Rc7 Bd3+ 6.Ke1 Nc4 7.Rd1 Kf8 8.Bf4 Kg8
9.f3 b5 10.Kf2 b4 11.Ra1 Ra3 12.Rxa3 bxa3
13.h4 Bb1 14.Be5 Nxe5 (954.651.932) 10421

34/51 2:04 +1.33-- 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.axb3 Rxb3
5.Rc7 Bd3+ 6.Ke1 Nc4 7.Rd1 Kf8 8.Bf4 Kg8
9.Be5 Nxe5 10.dxe5 Bc4 11.f3 b6
12.Kf2 Rb2+ 13.Kg3 Re2 14.Ra1 Kh7 (1.288.223.654) 10382

34/51 2:20 +1.38 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.axb3 Rxb3
5.Rc7 Bd3+ 6.Ke1 Nc4 7.Rd1 Kf8 8.Bf4 Kg8
9.Be5 Nxe5 10.dxe5 Bc4 11.f3 h5
12.Kf2 h4 13.Rd2 b5 14.Re7 d4 (1.461.870.262) 10407

35/51 3:00 +1.45-- 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.axb3 Rxb3
5.Rc7 Bd3+ 6.Ke1 Nc4 7.Rd1 g5 8.Ra1 Kd8
9.Rg7 Na3 10.Kd1 Ba6 11.Rg6 Rd3+
12.Kc1 Kd7 13.Rxh6 Nb5 14.Rb1 Nxd4 (1.886.192.879) 10468

35/51 3:41 +1.53-- 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 g5 6.Rc7 bxa2 7.Rxa2 Rc6
8.Rxc6 Nxc6 9.Ra8+ Kf7 10.Rc8 Ne7
11.Rc7 Ba6 12.f4 g4 13.f5 exf5
14.Bxh6 Kf6 (2.301.407.142) 10409

35/51 4:49 +1.64-- 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 Kd7 6.Bd2 Nc6 7.axb3 g5 8.f4 Be4
9.Kf2 gxf4 10.Bxf4 e5 11.Bxe5 Nb4
12.Rc7+ Ke6 13.Re2 Nd3+ 14.Kg3 Nxe5 (2.996.388.058) 10334

35/54 6:40 +1.66 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 g5 6.Rc7 bxa2 7.Rxa2 Rc6
8.Rxc6 Nxc6 9.Ra8+ Kf7 10.Rc8 Ba6
11.Kd2 Ne7 12.Rh8 Kg7 13.Rb8 Nc6
14.Rc8 Na5 (4.111.565.716) 10263

36/54 6:48 +1.59++ 1...Rb6 (4.194.032.368) 10262

36/54 7:43 +1.66-- 1...Rb6 2.Rd2 Na5 (4.765.551.203) 10289

36/54 8:42 +1.74 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 Bc4 6.Ra1 Rb5 7.axb3 Nxb3
8.Ra3 Kf7 9.Kd1 b6 10.Ra7+ Kf6
11.Kc2 Na5 12.Rxb5 Bxb5 13.Bf4 Nc6
14.Be5+ Nxe5 (5.366.079.186) 10261

37/54 9:53 +1.76 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 Bc4 6.Ra1 Rb5 7.axb3 Nxb3
8.Ra7 e5 9.dxe5 d4 10.Rc2 Rb4 11.Bd2 Nxd2
12.Ra8+ Ke7 13.Rxd2 d3 14.f3 Ke6 (6.078.205.983) 10233

38/54 10:23 +1.68++ 1...Rb6 (6.375.458.392) 10219

38/54 10:58 +1.61++ 1...Rb6 (6.721.031.451) 10206

38/54 13:03 +1.68-- 1...Rb6 2.Rd2 (7.975.144.288) 10176

38/59 14:31 +1.72 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 Bc4 6.Ra1 Rb5 7.Kd2 bxa2
8.Rxb5 Bxb5 9.Rxa2 b6 10.Kc3 Bc4
11.Ra1 Kd7 12.h3 h5 13.h4 g6 14.Bd2 Kd6 (8.869.648.627) 10183

39/59 19:04 +1.79-- 1...Rb6 2.Rd2 (11.647.656.020) 10177

39/59 19:57 +1.72++ 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 Bc4 6.Ra1 Rb5 7.Kd2 Rb4 8.axb3 Rxb3
9.Kc2 Rxb2+ 10.Kxb2 Nc6 11.Ra8+ Ke7
12.Rc8 Bf1 13.Rc7+ Kf6 14.g3 Na5 (12.191.917.901) 10178

39/59 21:13 +1.79-- 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 Bc4 6.Ra1 Rb5 7.Kd2 Rb4 8.axb3 Rxb3
9.Kc2 Rxb2+ 10.Kxb2 Nc6 11.Ra8+ Ke7
12.Rc8 Kf6 13.Kc3 g5 14.h4 Bf1 (12.949.109.309) 10167

39/64 22:18 +1.70++ 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 Bc4 6.Ra1 Ra6 7.axb3 Nxb3
8.Rxa6 bxa6 9.Kd1 Kf7 10.h4 Kf6
11.Kc2 Na5 12.Rb8 Bf1 13.g3 Nc4
14.Rf8+ Ke7 (13.602.906.443) 10164

39/64 23:20 +1.82-- 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 Bc4 6.Ra1 Bd3 7.Bd2 Nc6 8.Bc3 Ra6
9.Rxb3 b5 10.Bb2 Bc4 11.Rg3 Ra7
12.Re3 Kf7 13.a3 e5 14.dxe5 d4 (14.221.189.251) 10155

39/64 23:48 +1.66++ 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 g5 6.Rc7 Ba6 7.axb3 Nc4 8.Rb1 Na3
9.Rbc1 Rxb3 10.R7c3 Rxc3 11.Rxc3 Nb5
12.Rc8+ Kf7 13.Rd8 Kg6 14.Kd2 Na7 (14.501.039.924) 10150

39/64 24:49 +1.70 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 Bc4 6.Ra1 Rb5 7.Kd2 Rb4 8.axb3 Rxb3
9.Kc2 Rxb2+ 10.Kxb2 Nc6 11.Ra8+ Kf7
12.Rc8 Kf6 13.Kc3 g5 14.Rc7 Ba6 (15.110.305.268) 10143

40/64 28:36 +1.77-- 1...Rb6 2.Rd2 (17.415.101.087) 10146

40/64 31:37 +1.85-- 1...Rb6 2.Rd2 Na5 (19.262.247.593) 10152

40/64 32:07 +1.77++ 1...Rb6 (19.566.780.067) 10149

40/64 33:17 +1.83 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 Bc4 6.Ra1 Ra6 7.axb3 Nxb3
8.Rxa6 bxa6 9.Kd1 Kf7 10.h4 Kf6
11.Kc2 Na5 12.Rb8 Bf1 13.g3 Nc4
14.Rf8+ Ke7 (20.262.041.980) 10142

41/64 33:39 +1.76++ 1...Rb6 (20.473.812.068) 10140

41/64 35:33 +1.83-- 1...Rb6 2.Rd2 (21.623.451.573) 10135

41/64 35:40 +1.76++ 1...Rb6 (21.697.946.758) 10136

41/64 36:58 +1.75 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 Bc4 6.Ra1 Ra6 7.axb3 Nxb3
8.Rxa6 bxa6 9.Kd1 Kf7 10.h4 Kf6
11.Kc2 Na5 12.Rb8 Bf1 13.g3 Nc4
14.Rf8+ Ke7 (22.497.280.436) 10140

42/64 37:48 +1.67++ 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 Bc4 6.Ra1 Ra6 7.axb3 Nxb3
8.Rxa6 bxa6 9.Kd1 Kf7 10.h4 Kf6
11.Kc2 Na5 12.Rb8 Bf1 13.g3 Nc4
14.Rf8+ Ke7 (23.009.387.890) 10142

42/64 38:59 +1.73 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 Bc4 6.Ra1 Ra6 7.axb3 Nxb3
8.Rxa6 bxa6 9.h4 Kf7 10.Kd1 Kf6
11.Kc2 Na5 12.Rb8 Bf1 13.g3 Nc4
14.Rf8+ Ke7 (23.751.908.984) 10152

43/64 44:56 +1.80-- 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 Bc4 6.Ra1 Ra6 7.axb3 Nxb3
8.Rxa6 bxa6 9.h4 Kf7 10.Kd1 Kf6
11.Kc2 Na5 12.Rb1 Bb5 13.Kc3 Kf5
14.f3 Nc4 (27.386.412.014) 10157

43/64 58:38 +1.87-- 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 Bc4 6.Ra1 Ra6 7.axb3 Nxb3
8.Rxa6 bxa6 9.Kd1 Kf7 10.h4 Kf6
11.Kc2 Na5 12.Rb1 Be2 13.Ra1 Nc6
14.Kc3 h5 (35.693.852.000) 10143

43/69 62:45 +1.81 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 Bc4 6.Ra1 Ra6 7.axb3 Nxb3
8.Rxa6 bxa6 9.Kd1 Kf7 10.h4 Kf6
11.Kc2 Na5 12.Rb1 Be2 13.Ra1 Nc6
14.Kc3 Kf5 (38.213.243.765) 10146

44/69 70:57 +1.88-- 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 Bc4 6.Ra1 Ra6 7.axb3 Nxb3
8.Rxa6 bxa6 9.Kd1 Kf7 10.h4 Kf6
11.Kc2 Na5 12.Rb1 Bb5 13.Kc3 Kf5
14.Re1 Nc6 (43.276.130.411) 10165

44/69 76:53 +1.81++ 1...Rb6 (46.905.242.743) 10167

44/69 81:33 +1.88-- 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 Bc4 6.Ra1 Rb5 7.Kd2 Rb4 8.axb3 Rxb3
9.Kc2 Rxb2+ 10.Kxb2 Nc6 11.Ra8+ Kf7
12.Rc8 Kf6 13.Kc3 g5 14.Rc7 Ba6 (49.822.376.407) 10181

44/70 95:34 +1.91 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 Bc4 6.Ra1 Ra6 7.axb3 Nxb3
8.Rxa6 bxa6 9.h4 Ke7 10.Kd1 Kf6
11.Kc2 Na5 12.Rb1 Bb5 13.Kc3 Kf5
14.f3 Nc4 (58.479.830.469) 10198

45/70 114:22 +1.98-- 1...Rb6 2.Rd2 Na5 (69.883.436.693) 10183

45/70 177:52 +2.02 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 Bc4 6.Ra1 Ra6 7.axb3 Nxb3
8.Rxa6 bxa6 9.Kd1 Kf7 10.h4 Kf6
11.Kc2 Na5 12.Rb1 Bb5 13.Kc3 Kf5
14.f3 Nc4 (108.532.966.308) 10169

46/70 181:53 +1.95++ 1...Rb6 (110.935.418.871) 10165

46/70 186:27 +1.88++ 1...Rb6 2.Rd2 (113.694.103.001) 10162

46/70 188:16 +1.77++ 1...Rb6 (114.807.827.568) 10163

46/70 204:01 +1.86-- 1...Rb6 2.Rd2 (124.248.126.620) 10149

46/74 224:13 +2.01 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 Bc4 6.Ra1 Ra6 7.axb3 Nxb3
8.Rxa6 bxa6 9.h4 Kf7 10.Kd1 a5
11.Kc2 a4 12.Kc3 Kf6 13.Kb4 e5
14.dxe5+ Kxe5 (136.211.706.732) 10124

47/74 231:32 +1.94++ 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 Bc4 6.Ra1 Ra6 7.axb3 Nxb3
8.Rxa6 bxa6 9.Kd1 Kf7 10.h4 Kf6
11.Kc2 Na5 12.Rb1 Bb5 13.Kc3 Kf5
14.f3 Nc4 (140.556.743.794) 10117

47/74 260:09 +2.01-- 1...Rb6 2.Rd2 Na5 (157.625.669.698) 10097

47/74 261:08 +1.94++ 1...Rb6 (158.215.472.855) 10097

47/74 269:17 +2.03-- 1...Rb6 2.Rd2 Na5 (163.128.124.794) 10095

47/74 281:04 +1.91++ 1...Rb6 (170.152.982.208) 10089

47/74 291:19 +1.97 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 Bc4 6.Ra1 Ra6 7.axb3 Nxb3
8.Rxa6 bxa6 9.Kd1 Kf7 10.h4 Kf6
11.Kc2 Na5 12.Rb1 Bb5 13.Kc3 Kf5
14.f3 Nc4 (176.384.877.115) 10090

48/74 295:18 +1.89++ 1...Rb6 (178.745.479.396) 10088

48/74 332:04 +1.82++ 1...Rb6 2.Rd2 (200.329.789.350) 10054

48/74 349:50 +1.89-- 1...Rb6 2.Rd2 (210.988.844.967) 10051

48/74 392:07 +2.05-- 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 Bc4 6.Ra1 Ra6 7.axb3 Nxb3
8.Rxa6 bxa6 9.Kd1 Kf7 10.h4 Kf6
11.Kc2 Na5 12.Rb1 Bb5 13.Kc3 Kf5
14.f3 Nc4 (236.781.231.740) 10064

48/74 403:48 +1.94 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 Bc4 6.Ra1 Ra6 7.axb3 Nxb3
8.Rxa6 bxa6 9.h4 Kf7 10.Kd1 Kf6
11.Kc2 Na5 12.Rb1 Bb5 13.Kc3 Nc4
14.Bf4 Kf5 (243.960.242.699) 10069

49/74 478:28 +2.01-- 1...Rb6 2.Rd2 Na5 (289.049.540.664) 10068

49/74 677:51 +2.08-- 1...Rb6 2.Rd2 Na5 (410.379.762.946) 10090

49/74 704:58 +2.01++ 1...Rb6 (427.063.006.907) 10096

49/74 785:28 +2.00 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 Bc4 6.Ra1 Ra6 7.axb3 Nxb3
8.Rxa6 bxa6 9.h4 Kf7 10.Kd1 Kf6
11.Kc2 Na5 12.Rb1 Nc6 13.Kc3 Bb5
14.h5 Na5 (477.089.225.294) 10123

50/74 805:43 +2.08-- 1...Rb6 2.Rd2 Na5 (489.327.667.018) 10121

50/74 839:28 +2.01 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 Bc4 6.Ra1 Ra6 7.axb3 Nxb3
8.Rxa6 bxa6 9.Kd1 Kf7 10.h4 Kf6
11.Kc2 Na5 12.Rb1 Bb5 13.Kc3 Nc6
14.h5 Na5 (509.950.883.629) 10124

51/74 906:20 +2.08-- 1...Rb6 2.Rd2 Na5 (551.372.860.606) 10139

51/74 1033:53+2.13 1...Rb6 2.Rd2 Na5 3.b3 axb3 4.Rb2 Bd3+
5.Ke1 Bc4 6.Ra1 Ra6 7.axb3 Nxb3
8.Rxa6 bxa6 9.Kd1 Kf7 10.h4 Kf6
11.Kc2 Na5 12.Rb1 Nc6 13.Kc3 Bb5
14.h5 Kf7 (630.158.179.402) 10158

For the first time a result clearly above two pawns