what is wrong with Komodo Dragon 2 here?

Discussion of anything and everything relating to chess playing software and machines.

Moderators: hgm, Rebel, chrisw

frcha
Posts: 221
Joined: Thu Jan 28, 2010 5:47 pm

what is wrong with Komodo Dragon 2 here?

Post by frcha »

I had noticed previously that Dragon 2 seemed a bit weaker than dragon 1 and so I started a gauntlet match with KD1 and KD 2 against SF13_noNN.

Note this position Dragon 2 has a winning advantage but then it plays Qxf3??

[d]3r3k/1b3qp1/1p5p/pP1n1p1P/P2P2P1/3Q1p1K/3B1P2/1B4R1 w - - 0 43

I have never seen this before with any engine !
Also when I later analyze with KD2 it shows correct move so its really mystifying.
I really think this needs to be looked into.

Whole pgn is below. This is played on Arena 256h poff timecontrol using 6s+1s

Also for ref. here is the tournament so far.
Engine Score St
1: Stockfish_13_noNN 56.5/128 ииииииииииииииииииииииииииииииии
2: Lc0_0.27 19.5/32 =====1===1====1=0==1=1=1=1=====1
3: Fire_8.NN.1 19.0/32 10====1==1===0===1=11==1=====1==
4: KomodoDragon-1 17.0/32 ======1====1001==0=====1===1=0=1
5: KomodoDragon-2 16.0/32 ====0=0==10========1=======1=1=0

128 of 400 games played
Name of the tournament: FireDragonTest
Level: Blitz 0:06/1
Hardware: Intel(R) Core(TM) i7-10700K CPU @ 3.80GHz with 31.7 GB Memory
Operating system: Windows 10 Home Home Edition (Build 9200) 64 bit





[pgn][Event "FireDragonTest"]
[Site "Arena 256h poff"]
[Date "2021.06.09"]
[Round "32"]
[White "KomodoDragon-2"]
[Black "Stockfish_13_noNN"]
[Result "0-1"]
[WhiteElo "3300"]
[BlackElo "3800"]
[ECO "B22"]
[Opening "Sicilian"]
[Time "19:10:21"]
[Variation "Alapin, 2...d5 3.exd5 Qxd5 4.d4 Nf6 5.Nf3 e6 6.Be3"]
[TimeControl "6+1"]
[Termination "adjudication"]
[PlyCount "91"]
[WhiteType "program"]
[BlackType "program"]

1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 Nf6 5.Nf3 e6 6.Be3 cxd4 7.cxd4 Nc6 8.Nc3
Qa5 9.a3
{(a2-a3 Bf8-d6 b2-b4 Qa5-d8 Bf1-d3 O-O O-O e6-e5 h2-h3 e5xd4 Nf3xd4
Nc6xd4 Be3xd4 h7-h6 Rf1-e1 Bc8-e6 Nc3-b5 Bd6-b8 Bd4-c5 Rf8-e8 Bd3-f1
a7-a6 Qd1xd8 Re8xd8 Nb5-d4) +0.36/21 1}
9...Bd6
{(Bf8-d6 Bf1-d3 O-O O-O Qa5-h5 h2-h3 Nf6-d5 Be3-d2 Nd5-f4 Bd2xf4
Bd6xf4 Rf1-e1 Nc6-e7 Nc3-e2 Bf4-d6 Ne2-g3 Bd6xg3 f2xg3 Bc8-d7 Qd1-d2
Bd7-c6 g3-g4 Qh5-h6 g4-g5 Qh6-h5 Nf3-e5) -0.49/27 2}
10.b4
{(b2-b4 Qa5-d8 Bf1-d3 O-O O-O Nc6-e7 Nf3-e5 Ne7-f5 Rf1-e1 Nf5xe3
Re1xe3 Bd6-e7 Bd3-c4 Nf6-d5 Re3-g3 g7-g6 Nc3-e4 Kg8-g7 Qd1-h5 a7-a5
b4-b5 f7-f5) +0.34/21 0}
10...Qd8
{(Qa5-d8 Bf1-d3 a7-a5 b4-b5 Nc6-e7 Be3-g5 O-O O-O b7-b6 Rf1-e1 Bc8-b7
Nf3-e5 Nf6-d5 Nc3xd5 Bb7xd5 Ne5-c6 Qd8-e8 Bg5xe7 Bd6xe7 Bd3-e4 Bd5xe4
Re1xe4 Ra8-c8 Re4-e3 Be7-f6 a3-a4 Qe8-d7 Ra1-a3 h7-h6) -0.21/24 0}
11.Bd3
{(Bf1-d3 O-O O-O Nc6-e7 Nf3-e5 Ne7-f5 Rf1-e1 Nf5xe3 Re1xe3 Bd6-e7
Bd3-c4 Nf6-d5 Re3-d3 g7-g6 Bc4-b5 f7-f6 Ne5-c4 Kg8-g7 Ra1-c1 Bc8-d7
Nc3xd5 e6xd5 Bb5xd7 Qd8xd7) +0.24/21 0}
11...a5
{(a7-a5 b4-b5 Nc6-e7 Be3-g5 O-O O-O b7-b6 Rf1-e1 Bc8-b7 Nf3-e5 Ne7-g6
Bg5xf6 Qd8xf6 Bd3-e4 Ra8-c8 Be4xb7 Rc8xc3 Ne5-d7 Qf6-e7 Bb7-c6 Rf8-d8
Nd7xb6 Bd6xa3 Re1-e3 Rc3xe3 f2xe3 Ba3-b4) -0.20/26 1}
12.b5
{(b4-b5 Nc6-e7 Nc3-e4 Nf6xe4 Bd3xe4 Ne7-d5 Qd1-d3 f7-f5 Be4xd5 e6xd5
Be3-g5 Qd8-d7 O-O O-O Rf1-e1 h7-h6 Bg5-d2 f5-f4 a3-a4 Qd7-f7 Nf3-e5
Bd6xe5 Re1xe5 f4-f3 Qd3xf3 Qf7xf3 g2xf3) +0.35/21 1}
12...Ne7
{(Nc6-e7 Be3-g5 h7-h6 Bg5xf6 g7xf6 O-O Ke8-f8 Rf1-e1 Kf8-g7 h2-h3
Ne7-g6 Bd3xg6 f7xg6 Qd1-b3 Bc8-d7 Nc3-e4 Qd8-e7 Ne4xd6 Qe7xd6 a3-a4
Ra8-c8 Qb3-d3 Rh8-d8 Qd3-e3 b7-b6 Ra1-c1 Rc8xc1 Re1xc1 Rd8-c8 Rc1xc8)
-0.32/25 1}
13.Ne4
{(Nc3-e4 Nf6xe4 Bd3xe4 Ne7-d5 Qd1-d3 Nd5-f6 O-O Nf6xe4 Qd3xe4 a5-a4
Rf1-c1 O-O Nf3-e5 Bc8-d7 Qe4xb7 Bd6xe5 d4xe5 Ra8-b8 Qb7-e4 Bd7xb5
h2-h4 h7-h6 Qe4-g4 Kg8-h7 Ra1-b1 Qd8-d3 Qg4-f3 Kh7-g8) +0.19/22 2}
13...Nxe4
{(Nf6xe4 Bd3xe4 f7-f5 Be4-c2 b7-b6 O-O O-O Bc2-b3 Ne7-d5 Bb3xd5 e6xd5
a3-a4 f5-f4 Be3-d2 Qd8-f6 Rf1-e1 Bc8-g4 h2-h3 Bg4xf3 Qd1xf3 Qf6xd4
Bd2-c3 Qd4-c4 Re1-d1 Ra8-c8 Qf3xd5+ Qc4xd5 Rd1xd5 Bd6-b4 Bc3xb4 a5xb4)
-0.13/29 0}
14.Bxe4
{(Bd3xe4 Ne7-d5 Qd1-d3 Nd5-f6 O-O Nf6xe4 Qd3xe4 a5-a4 Nf3-e5 O-O
Rf1-b1 Bd6-e7 Ne5-c4 f7-f5 Qe4-c2 f5-f4 Be3-d2 f4-f3 Nc4-e5 f3xg2
Bd2-b4 Rf8-f4 Bb4xe7 Qd8xe7 Rb1-e1 Rf4-f5 Qc2-e4) +0.34/23 1}
14...f5
{(f7-f5) -0.20/30 4}
15.Bb1
{(Be4-b1 Ne7-d5 Be3-d2 b7-b6 O-O O-O Rf1-e1 Rf8-e8 Bb1-a2 Bc8-b7
Bd2-g5 Qd8-c7 Qd1-d3 Ra8-c8 Ra1-c1 Qc7-f7 Rc1xc8 Re8xc8 Qd3-e2 Bd6xa3
Qe2xe6 Qf7xe6 Re1xe6 Ba3-b4 Re6xb6) +0.73/24 4}
15...O-O
{(O-O O-O Ne7-d5 Be3-d2 b7-b6 Qd1-e2 Rf8-e8 a3-a4 Bc8-b7 Bb1-a2 Qd8-f6
Rf1-e1 h7-h6 Ra1-c1 Qf6-g6 Nf3-h4 Qg6-f7 Nh4-f3 Qf7-g6) 0.00/25 0}
16.O-O
{(O-O Ne7-d5 Rf1-e1 b7-b6 Qd1-d3 Bc8-b7 Be3-d2 Qd8-f6 Bb1-a2 Ra8-e8
Nf3-e5 Qf6-h4 f2-f3 Kg8-h8 Re1-e2 Qh4-h5 Ra1-c1 Re8-d8 Ba2-c4 h7-h6
Bc4-a2 Nd5-c7 Ba2-b3 Bb7-d5 Bb3xd5 Nc7xd5 Rc1-c6) +0.78/23 2}
16...Nd5
{(Ne7-d5 Be3-d2 b7-b6 Qd1-e2 Qd8-f6 Rf1-e1 Rf8-e8 Bb1-a2 Bc8-b7 a3-a4
h7-h6 Ba2-b3 Ra8-c8 Ra1-c1 Rc8xc1 Re1xc1 Qf6-g6 Nf3-h4 Qg6-f7 Nh4-f3
Qf7-h5 Rc1-e1 Qh5-g4 h2-h3 Qg4-h5 Re1-c1 Nd5-c7 Bb3-a2 Bb7-e4 Ba2-c4
Qh5-g6 Nf3-h4 Qg6-f7) 0.00/32 0}
17.Qd3
{(Qd1-d3 b7-b6 Rf1-e1 Qd8-f6 Bb1-a2 Bc8-b7 Be3-d2 Ra8-e8 Nf3-e5 Qf6-h4
f2-f3 Kg8-h8 Re1-e2 Qh4-h5 Ra1-e1 Re8-c8 g2-g3 f5-f4 g3-g4 Qh5-h4
Ne5-c6 Nd5-e3 Ba2xe6 Bb7xc6 b5xc6 Rc8xc6 Be6-a2 Rc6-c2) +0.67/23 1}
17...b6
{(b7-b6 Rf1-e1 Bc8-b7 Bb1-a2 Ra8-c8 Be3-d2 Qd8-f6 Nf3-e5 Rf8-d8 Ne5-c4
Bd6-c7 Nc4-e5) 0.00/28 0}
18.Bd2
{(Be3-d2 Qd8-f6 Bb1-a2) +0.69/25 3}
18...Bb7
{(Bc8-b7 Rf1-e1 Qd8-f6 Bb1-a2 Ra8-c8 Nf3-e5 Rf8-d8 Ne5-c4 Bd6-c7
Nc4-e5) 0.00/33 1}
19.Re1
{(Rf1-e1 Nd5-c7 Bb1-a2 Qd8-d7 a3-a4 Ra8-c8 h2-h3 Bb7-d5 Qd3-e2 h7-h6
Ba2xd5 Nc7xd5 Qe2xe6+ Qd7xe6 Re1xe6 Rf8-d8 Kg1-f1 Kg8-f7 Re6-e2 Nd5-c3
Re2-e3 Nc3-e4 g2-g3 Rc8-c2 Re3-d3 Rc2-b2 Ra1-c1 Rb2-a2) +0.52/23 1}
19...Qf6
{(Qd8-f6 Bb1-a2 Ra8-c8 Re1-e2 Rf8-e8 Ra1-e1 h7-h6 Nf3-e5 Bd6xe5 Re2xe5
Qf6-g6 f2-f3 Nd5-c7 a3-a4 Bb7-d5 Ba2xd5 Nc7xd5 Qd3-e2 Qg6-f6 Re5xe6
Qf6xe6 Qe2xe6+ Re8xe6 Re1xe6 Rc8-c4 Re6-d6 Rc4xd4 Bd2-e1 Kg8-f7
Rd6-d7+ Kf7-e6 Rd7xg7 Rd4-d1 Rg7-g6+ Ke6-e5) -0.12/32 2}
20.Ba2
{(Bb1-a2 Ra8-e8 Nf3-e5 Qf6-h4 Ra1-c1 Nd5-f6 f2-f3 Bb7-d5 Ba2xd5 Nf6xd5
Rc1-c6 Re8-d8 g2-g3 Qh4-h3 Ne5-c4 Bd6xg3 h2xg3 Qh3xg3+ Kg1-f1 Qg3-h2
Nc4xb6 Nd5xb6 Rc6xb6 Qh2-h3+ Kf1-e2 e6-e5 Ke2-d1 Rd8xd4 Qd3-b3+
Kg8-h8) +0.73/21 0}
20...Rac8
{(Ra8-c8 Nf3-e5 Rf8-d8 Qd3-g3 h7-h6 Ra1-c1 Rc8xc1 Re1xc1 f5-f4 Qg3-d3
Bd6xe5 d4xe5 Qf6xe5 Rc1-e1 Qe5-f6 Qd3-e4 Kg8-f7 a3-a4 g7-g6 g2-g3
Qf6-f5 Qe4-d4 Qf5-h3 Qd4-e4) 0.00/30 0}
21.Re2
{(Re1-e2 Rf8-e8 Ra1-e1 h7-h6 Nf3-e5 Bd6xe5 Re2xe5 Qf6-g6 f2-f3 Qg6-f7
h2-h3 Rc8-d8 Kg1-h1 Kg8-h8 Qd3-e2 Qf7-d7 Re1-c1 Nd5-c7 a3-a4 Qd7-d6
Qe2-c4 Bb7-d5 Qc4xc7 Bd5xa2) +0.96/20 1}
21...Qg6
{(Qf6-g6 Nf3-e5 Bd6xe5 Re2xe5 Nd5-c7 Qd3-g3 Qg6-f7 Ra1-e1 Rf8-e8
Ba2-c4 Rc8-d8 Qg3-c3 Qf7-d7 Re1-c1 Rd8-c8 Qc3-b2 Bb7-e4 f2-f3 Be4-d5
Bc4-f1 Bd5-b7 Rc1-e1 Nc7-d5 Qb2-b3 Nd5-c7) 0.00/34 0}
22.Rae1
{(Ra1-e1 Rf8-f6 g2-g3 h7-h6 Nf3-e5 Bd6xe5 Re2xe5 Rc8-d8 Qd3-e2 Nd5-c7
Re1-c1 Nc7-d5 a3-a4 Qg6-f7 Qe2-d3 Qf7-d7 Ba2-b3 Kg8-h8 h2-h4 Nd5-c7
Bb3-c2 Rf6-f8 h4-h5 Qd7-f7 Bc2-b3 Bb7-e4) +0.50/23 2}
22...Rf6
{(Rf8-f6 g2-g3 h7-h6 Ba2-b3 Rc8-d8 a3-a4 Rd8-e8 Nf3-e5 Bd6xe5 Re2xe5
Qg6-f7 Qd3-e2 Qf7-d7 Qe2-h5 Re8-c8 Qh5-e2) 0.00/29 1}
23.g3
{(g2-g3 h7-h6 Nf3-e5 Bd6xe5 Re2xe5 Qg6-f7 Ba2-b3 Rc8-d8 a3-a4 Kg8-h8
Qd3-e2 Nd5-c7 Bd2-c1 Bb7-d5 Bb3-c2 Kh8-g8 Re5-e3 f5-f4 g3xf4 Rf6xf4
Qe2-d3 Qf7-f5 Re3-g3 Qf5xd3 Bc2xd3) +0.60/22 1}
23...h6
{(h7-h6 Ba2-b3 Rc8-d8 Nf3-e5 Bd6xe5 Re2xe5 Qg6-f7 Qd3-e2 Nd5-c7 Re1-c1
Nc7-d5) 0.00/31 1}
24.Ne5
{(Nf3-e5 Bd6xe5 Re2xe5 Kg8-h8 Ba2-b3 Qg6-f7 a3-a4 Rc8-d8 h2-h3 Nd5-c7
Re1-c1 Qf7-e7 Qd3-e2 Nc7-d5 Rc1-e1 Nd5-c7 Qe2-h5 Bb7-d5 Bb3-c2 Qe7-f7
Qh5-e2 Bd5-b7 d4-d5 Nc7xd5 Re5xe6 Qf7xe6 Qe2xe6 Rf6xe6 Re1xe6)
+0.58/21 0}
24...Bxe5
{(Bd6xe5 Re2xe5 a5-a4 Ba2-b1 Nd5-e7 Bd2-b4 Ne7-d5) 0.00/33 0}
25.Rxe5
{(Re2xe5 Kg8-h8 Ba2-b3 Rc8-d8 a3-a4 Qg6-f7 h2-h3 Nd5-c7 Re1-c1 Qf7-e7
Qd3-e2 Nc7-d5 Rc1-e1 Qe7-a3 Qe2-f3 Qa3-e7 Qf3-d3 Qe7-f7 Qd3-e2 Nd5-c7
Bd2-c1 Rd8xd4 Bc1-b2 Rd4-b4 Qe2-d1 Bb7-d5 Re5xd5 Nc7xd5 Bb2xf6 Qf7xf6
Bb3xd5 e6xd5) +0.50/24 0}
25...Qf7
{(Qg6-f7 Ba2-b3 Nd5-c7 Re1-c1 Bb7-e4 Qd3-c3 Be4-b7) 0.00/36 1}
26.a4
{(a3-a4 Kg8-h8 Ba2-b3 Rc8-d8 Qd3-e2 Nd5-c7 Bd2-f4 Nc7-d5 Bf4-c1 Nd5-c3
Qe2-d3 Nc3-d5 Bc1-d2 Qf7-d7 h2-h4 Qd7-f7 Re1-c1 Qf7-e7 h4-h5 Qe7-a3
Rc1-e1 Nd5-c7 Qd3-c4 Qa3-d6 Bb3-d1 Qd6-d7 Qc4-c3 Qd7-f7) +0.44/22 0}
26...Kh8
{(Kg8-h8 Ba2-b3 Qf7-d7 Qd3-e2 Rc8-e8 h2-h4 Nd5-c7 Bd2-f4 Nc7-d5
Bf4-d2) 0.00/31 0}
27.Bb3
{(Ba2-b3 Rc8-d8 Qd3-e2 Nd5-c7 Bd2-f4 Nc7-d5 Bf4-c1 Nd5-c3 Qe2-d3
Nc3-d5 Bc1-d2 Rf6-g6 Qd3-e2 Nd5-c7 Bd2-e3 Rg6-f6 Bb3-c2 Qf7-d7 Be3-f4
Kh8-g8 Bf4-c1 Qd7-d6 Qe2-c4 Rf6-f7 Bc2-b3 Bb7-d5 Qc4-c3 Bd5xb3)
+0.45/23 2}
27...Qd7
{(Qf7-d7 Qd3-e2 Rc8-e8 h2-h4 Kh8-g8 Bb3-c2 Re8-c8 Bc2-b3) 0.00/33 0}
28.h3
{(h2-h3 Nd5-c7 h3-h4) +0.39/20 1}
28...Nc7
{(Nd5-c7 h3-h4 Bb7-d5 Bb3-c2 Nc7-e8 Bd2-f4 Bd5-c4 Qd3-f3 Bc4-d5)
0.00/33 1}
29.h4
{(h3-h4 Bb7-d5 Bb3-d1 Nc7-e8 Bd2-f4 Bd5-c4 Qd3-a3 Ne8-c7 Bf4-d2 Bc4-d5
Bd1-e2 Rf6-f8 Be2-d3 Rf8-d8 Re1-c1 Nc7-e8 Rc1xc8 Rd8xc8 Bd2-f4 Ne8-f6
Re5-e1 Bd5-e4 Bd3xe4 Nf6xe4 Qa3-d3) +0.37/19 1}
29...Nd5
{(Nc7-d5 Kg1-h2 Rc8-f8 Kh2-g1 Rf8-c8) 0.00/29 0}
30.h5
{(h4-h5 Qd7-d6 Kg1-h2 Qd6-d7 Qd3-e2 Nd5-c7 Kh2-g1 Bb7-e4 Re5xe4 f5xe4
Qe2xe4 Nc7-d5 Bb3-c2 Rc8xc2 Qe4xc2 Qd7-f7 Re1-c1 Qf7xh5 Qc2-e4 Rf6-f8
Bd2-e3 Rf8-e8 Qe4-e5 Qh5xe5 d4xe5 Nd5xe3) +0.30/18 0}
30...Rcf8
{(Rc8-f8 Re1-c1 Rf8-g8 Qd3-e2 Rg8-d8 Rc1-e1 Rd8-e8 Bd2-f4 Nd5-c3
Qe2-d3 Nc3-d5) 0.00/32 1}
31.Rc1
{(Re1-c1 Rf6-f7) +0.14/19 1}
31...Qf7
{(Qd7-f7 Qd3-f3 Rf8-d8 Bb3xd5 Bb7xd5 Re5xd5 e6xd5 Bd2-f4 Rf6-e6 Bf4-e5
Kh8-g8 Kg1-g2 Re6-e7 Rc1-c6 Re7-e6 Rc6-c7 Re6-e7 Rc7-c6) 0.00/34 0}
32.Bd1
{(Bb3-d1 Qf7-d7) +0.71/19 1}
32...f4
{(f5-f4 Bd1-c2 Qf7-g8 g3-g4 f4-f3 Bc2-b3 Qg8-f7 Bb3-c2) 0.00/32 0}
33.Bc2
{(Bd1-c2 Qf7-g8 g3-g4 Rf8-c8 Bc2-b1 Rc8xc1+ Bd2xc1 Nd5-b4 Qd3-e2
Qg8-c8 Bc1-d2 Bb7-d5 f2-f3 Rf6-f8 Kg1-g2 Qc8-c4 Qe2xc4 Bd5xc4 Bb1-e4
Kh8-g8 g4-g5 h6xg5 Re5xg5) +1.74/16 1}
33...Qg8
{(Qf7-g8 g3-g4 f4-f3 Kg1-f1 Rf8-c8 Bc2-b3 Rc8xc1+ Bd2xc1 Nd5-b4 Qd3-c3
Nb4-d5 Qc3-c2 Nd5-b4 Qc2-c7 Bb7-d5 Bb3xd5 Nb4xd5 Qc7-c6 Qg8-h7 Qc6-e8+
Qh7-g8) 0.00/36 1}
34.g4
{(g3-g4 Nd5-b4 Bd2xb4 a5xb4 Bc2-b3 Bb7-d5 Bb3xd5 e6xd5 Rc1-c7 Rf8-c8
Rc7-e7 Rf6-f7 Kg1-g2 f4-f3+ Kg2-g3 Rf7xe7 Re5xe7 Qg8-d8 Qd3-f5 Qd8-d6+
Kg3-h3 Qd6xe7 Qf5xc8+ Kh8-h7 Qc8-f5+ Kh7-h8 Qf5xd5 Qe7-e2 Kh3-g3)
+1.41/19 0}
34...f3
{(f4-f3 Kg1-f1 Nd5-b4 Bd2xb4 a5xb4 Bc2-b3 Bb7-d5 Bb3xd5 e6xd5 Re5-f5
Rf6xf5 g4xf5 Rf8-c8 Rc1-c6 Qg8-e8 Rc6xc8 Qe8xc8 Qd3xf3 Qc8-c4+ Kf1-g2
Qc4xd4 Qf3-e2 b4-b3 Qe2-e8+ Kh8-h7 Qe8-g6+ Kh7-h8) 0.00/35 1}
35.Kh2
{(Kg1-h2 Rf8-d8 Kh2-h3 Rd8-f8 Rc1-g1 Nd5-b4 Bd2xb4 a5xb4 Bc2-b3 Rf8-c8
Rg1-e1 Bb7-d5 Bb3xd5 e6xd5 Re5-e7 Rc8-c3 Qd3-d2 Rc3-c4 Qd2-e3 Rc4-c2
Re7-e8 Rf6-f8 Re8xf8 Qg8xf8 Qe3-e8 Rc2-c8 Qe8-e6) +1.96/18 1}
35...Rd8
{(Rf8-d8 Rc1-e1) -1.36/27 5}
36.Kh3
{(Kh2-h3 Rd8-d6 Qd3-a3) +2.15/21 0}
36...Rd7
{(Rd8-d7) -0.55/20 0}
37.Bb1
{(Bc2-b1 Rd7-f7 Rc1-g1) +2.43/19 1}
37...Rd8
{(Rd7-d8 Kh3-g3 Rd8-d7 Rc1-e1 Rd7-d6 Kg3-h2 Nd5-b4 Qd3-c3 Nb4-d5
Qc3-c1 Nd5-b4 Qc1-b2 Nb4-d5 g4-g5 h6xg5 Bd2xg5 Qg8-f7 Bb1-g6 Rf6xg6
h5xg6 Qf7xg6 Qb2-b1 Qg6xb1 Re1xb1 Kh8-g8 Rb1-c1 Kg8-f7 Kh2-g3 Rd6-d7
Re5-e1 Kf7-g6 Bg5-e3 Kg6-f7 Kg3xf3) -1.25/25 1}
38.Rg1
{(Rc1-g1 Nd5-b4 Qd3-e3) +2.55/20 1}
38...Nb4
{(Nd5-b4 Qd3-c4 Rd8-c8 Qc4-f1 Nb4-d5 g4-g5 h6xg5 Bd2xg5 Qg8-f7 Rg1-g4
Rf6-f5 Bb1xf5 e6xf5 Rg4-h4 Rc8-f8 Kh3-h2 Nd5-f6 Bg5xf6 Qf7xf6 Qf1-h3
Bb7-e4 Qh3-g3 Kh8-g8) -1.32/22 0}
39.Qe3
{(Qd3-e3 Nb4-d5 Qe3-b3 Rd8-c8 Kh3-h2 Rc8-f8 Qb3-d3 Rf8-f7 Rg1-g3
Rf7-d7 Qd3-b3 Nd5-e7 Qb3-c4 Qg8-d8 Qc4-d3 Qd8-g8 g4-g5 Rf6-f5 Qd3-e3
Qg8-f7 g5-g6) +2.71/18 0}
39...Nd5
{(Nb4-d5 Qe3-d3 Nd5-b4 Qd3-c4 Rd8-c8 Qc4-f1 Qg8-e8 Rg1-g3 Qe8-d7
Bd2-e3 Bb7-d5 g4-g5 h6xg5 Re5xg5 Bd5-c4 Qf1-e1 Nb4-d3 Bb1xd3 Bc4xd3
Rg5xg7 Bd3-f5+ Kh3-h2 Qd7xg7 Rg3xg7 Kh8xg7 Be3-g5 Rf6-f8 Qe1-e3)
-1.47/23 0}
40.Qa3
{(Qe3-a3 Qg8-f7 Qa3-d3) +2.83/20 1}
40...Qf7
{(Qg8-f7 Qa3-d3 Rf6-f5 Re5xf5 e6xf5 Qd3xf5 Qf7xf5 Bb1xf5 Nd5-e7 Bd2-e3
Ne7xf5 g4xf5 Bb7-e4 Rg1-c1 Rd8-d5 Kh3-g4 Be4xf5+ Kg4xf3 Kh8-h7 Rc1-c6
Bf5-d3 Kf3-g3 Rd5xh5 Be3-f4 Bd3-e4 Bf4-e5 Rh5-f5 f2-f4 Rf5-f7 Rc6xb6
Be4-c2 Rb6-a6 Bc2xa4 b5-b6 Ba4-b3 Ra6xa5 Rf7-b7 Ra5-a7 Rb7xb6 Ra7xg7+
Kh7-h8) -1.54/28 0}
41.Qd3
{(Qa3-d3 Rf6-f5 Re5xf5 e6xf5 Qd3xf5 Nd5-f6 Rg1-c1 Qf7-g8 Bd2xh6 Nf6xg4
Qf5xg4 g7xh6 Qg4xg8+ Kh8xg8 Rc1-g1+ Kg8-f7 Rg1-g6 Rd8xd4 Bb1-a2+
Kf7-e8 Rg6xh6 Rd4xa4 Rh6xb6 Ra4xa2 Rb6xb7 Ra2xf2) +2.97/18 1}
41...Rf5
{(Rf6-f5 Re5xf5 e6xf5 Qd3xf5 Qf7xf5 Bb1xf5 Nd5-e7 Bd2-e3 Ne7xf5 g4xf5
Bb7-e4 Rg1-c1 Rd8-d5 Rc1-c6 Be4xf5+ Kh3-g3 Kh8-h7 Rc6xb6 Bf5-c2 Rb6-e6
Bc2xa4 b5-b6 Rd5-b5 d4-d5 Ba4-b3 Re6-e7 Bb3xd5 Be3-d4 Kh7-g8 Re7xg7+
Kg8-f8 Rg7-h7) -1.44/24 0}
42.Rxf5
{(Re5xf5 e6xf5 Qd3xf5 Nd5-f6 Rg1-c1 Bb7-d5 Qf5-g6 Qf7-f8 Rc1-c7 Bd5-e6
Bb1-f5 Be6xf5 g4xf5 Rd8-d7 Rc7xd7 Nf6xd7 Kh3-g3 Qf8-e7 Qg6-e6 Qe7-d8
Kg3xf3 Nd7-f6 Bd2-e3 Nf6xh5) +3.24/18 0}
42...exf5
{(e6xf5 Qd3xf5 Nd5-f6 Bd2-e3 Bb7-c8 Qf5-g6 Qf7-e7 Bb1-f5 Bc8xf5 Qg6xf5
Nf6-d5 Qf5xf3 Nd5xe3 Qf3xe3 Qe7-f7 f2-f3 Qf7-a2 g4-g5 Qa2-d5 g5xh6
Qd5xh5+ Kh3-g2 Qh5-g6+ Kg2-f2 Qg6-c2+ Qe3-e2 Qc2xe2+ Kf2xe2 Rd8xd4
h6xg7+ Kh8-g8 Rg1-g6 Rd4xa4 Rg6xb6) -1.44/26 0}
43.Qxf3
{(Qd3xf3) +3.08/19 1}
43...fxg4+
{(f5xg4+ Qf3xg4 Bb7-c8 Qg4xc8 Qf7-f3+ Rg1-g3 Qf3-h1+ Kh3-g4 Rd8xc8
Bb1-f5 Rc8-f8 Bd2-e3 Qh1-d1+ Rg3-f3 Nd5-f6+ Kg4-g3 Qd1-h1 Be3-f4
Nf6xh5+ Kg3-g4 Rf8xf5 Kg4xf5 Qh1xf3 Kf5-e6 Nh5xf4+ Ke6-e5 Nf4-e2
Ke5-d6 Qf3xf2) +10.90/22 0}
44.Qxg4
{(Qf3xg4 Bb7-c8 Qg4xc8 Qf7-f3+ Rg1-g3 Qf3-h1+ Kh3-g4 Rd8xc8 Bb1-f5
Rc8-d8 Bd2xh6 Nd5-f6+ Kg4-g5 Qh1xh5+ Kg5-f4 Qh5xh6+ Kf4-e5 Qh6-h5
Ke5-f4 Rd8xd4+ Kf4-e3 Rd4xa4 Bf5-b1 Qh5xb5 Rg3-g1 Qb5-d5) -12.48/17 0}
44...Bc8
{(Bb7-c8 Qg4xc8 Qf7-f3+ Kh3-h2 Rd8xc8 Rg1-g2 Qf3xh5+ Kh2-g3 Qh5-d1
f2-f3 Qd1xb1 Kg3-h2 Qb1-d3 Rg2-f2 Rc8-c2 Bd2-e1 Rc2-c1 Be1-d2 Qd3xd4
Kh2-g3 Rc1-g1+ Rf2-g2 Rg1xg2+ Kg3xg2 Qd4xd2+ Kg2-g3 Qd2-d4 Kg3-g2
Qd4xa4 Kg2-g3 Qa4xb5 Kg3-g4) +11.62/23 0}
45.Kg3
{(Kh3-g3 Bc8xg4) -13.82/17 0}
45...Bxg4
{(Bc8xg4 f2-f4 Qf7xh5 Kg3-f2 Bg4-d1 Rg1-g2 Nd5-f6 Kf2-g1 Bd1xa4 Bb1-g6
Qh5-d1+ Kg1-h2 Qd1-f3 Rg2-g3 Nf6-g4+ Rg3xg4 Qf3xg4 Bg6-d3 Rd8xd4
Bd2xa5 b6xa5 Bd3-b1 Qg4xf4+ Kh2-h1 Rd4-d1+ Kh1-g2 Rd1xb1) +15.25/21 0}
46.Be4
{(Bb1-e4 Nd5-f6 Be4-c6 Nf6xh5+ Kg3-h2 Qf7xf2+ Rg1-g2 Qf2xd4 Bc6-d7
Bg4xd7 Bd2-e1 Qd4-e5+ Be1-g3 Nh5xg3 Rg2xg3 Qe5-h5+ Kh2-g1 Bd7xb5
Rg3-g2 Rd8-d1+ Kg1-f2 Rd1-d2+ Kf2-g1 Qh5-d1+ Kg1-h2) -19.56/16 1
Arena Adjudication}
0-1
[/pgn]
Top
Cornfed
Posts: 511
Joined: Sun Apr 26, 2020 11:40 pm
Full name: Brian D. Smith

Re: what is wrong with Komodo Dragon 2 here?

Post by Cornfed »

I don't have Dragon...but I have a feeling no one is going to be able to replicate this...doesn't look possible.
Top
frcha
Posts: 221
Joined: Thu Jan 28, 2010 5:47 pm

Re: what is wrong with Komodo Dragon 2 here?

Post by frcha »

When you purchase dragon 2 you also get dragon 1, so good value if you dont have dragon 1 . However ... issues as stated are accurate - dont know about replication of exact position but anyone can replicate the poor performance vs SF noNN compared to KD 1.

- I just finished the tournament and there is no obvious mis-configuration. Dragon 2 does have table memory increased to 128M but then so does dragon 1. The results of the Gauntlet Tournament which also includes lc0 and Fire is below:

I suspect it is the time control being too short maybe? There is a setting called reduction (default setting ) which is different in Dragon2 compared to dragon 1 - perhaps the Komodo programmers might have more insight.

Also very few people are testing vs SF nonn. I suspect Dragon 2 does a little better against others engines judging from engine list e.g check https://ccrl.chessdom.com/ccrl/404/cgi/ ... 4-bit_8CPU making it comparable in ELO.

8 Cores ponder off. lc0 on RTX 2070 super using J94 net.


Great performance by Fire 8NN - much weaker performance from KD2 than expected:


-----------------Fire_8.NN.1-----------------
Fire_8.NN.1 - Stockfish_13_noNN : 57.0/100 19-5-76 (10====1==1===0===1=11==1=====1==========0========11==1=1===0=========11====1=======1=======1=1==01==) 57% +49
-----------------KomodoDragon-1-----------------
KomodoDragon-1 - Stockfish_13_noNN : 55.5/100 20-9-71 (======1====1001==0=====1===1=0=1==1====1==0110=1=1===10===0==1=1=========1===1=========11=======01==) 56% +42
-----------------KomodoDragon-2-----------------
KomodoDragon-2 - Stockfish_13_noNN : 52.5/100 13-8-79 (====0=0==10========1=======1=1=00==========11====1===11=========0======1===========1========1==1=00=) 53% +21
-----------------Lc0_0.27-----------------
Lc0_0.27 - Stockfish_13_noNN : 59.0/100 23-5-72 (=====1===1====1=0==1=1=1=1=====1=====101=111====1==0=========1=====11=====01=========11========101=1) 59% +63
Top
lkaufman
Posts: 5960
Joined: Sun Jan 10, 2010 6:15 am
Location: Maryland USA

Re: what is wrong with Komodo Dragon 2 here?

Post by lkaufman »

frcha wrote: ↑Thu Jun 10, 2021 1:52 am I had noticed previously that Dragon 2 seemed a bit weaker than dragon 1 and so I started a gauntlet match with KD1 and KD 2 against SF13_noNN.

Note this position Dragon 2 has a winning advantage but then it plays Qxf3??

[d]3r3k/1b3qp1/1p5p/pP1n1p1P/P2P2P1/3Q1p1K/3B1P2/1B4R1 w - - 0 43

I have never seen this before with any engine !
Also when I later analyze with KD2 it shows correct move so its really mystifying.
I really think this needs to be looked into.

Whole pgn is below. This is played on Arena 256h poff timecontrol using 6s+1s

Also for ref. here is the tournament so far.
Engine Score St
1: Stockfish_13_noNN 56.5/128 ииииииииииииииииииииииииииииииии
2: Lc0_0.27 19.5/32 =====1===1====1=0==1=1=1=1=====1
3: Fire_8.NN.1 19.0/32 10====1==1===0===1=11==1=====1==
4: KomodoDragon-1 17.0/32 ======1====1001==0=====1===1=0=1
5: KomodoDragon-2 16.0/32 ====0=0==10========1=======1=1=0

128 of 400 games played
Name of the tournament: FireDragonTest
Level: Blitz 0:06/1
Hardware: Intel(R) Core(TM) i7-10700K CPU @ 3.80GHz with 31.7 GB Memory
Operating system: Windows 10 Home Home Edition (Build 9200) 64 bit





[pgn][Event "FireDragonTest"]
[Site "Arena 256h poff"]
[Date "2021.06.09"]
[Round "32"]
[White "KomodoDragon-2"]
[Black "Stockfish_13_noNN"]
[Result "0-1"]
[WhiteElo "3300"]
[BlackElo "3800"]
[ECO "B22"]
[Opening "Sicilian"]
[Time "19:10:21"]
[Variation "Alapin, 2...d5 3.exd5 Qxd5 4.d4 Nf6 5.Nf3 e6 6.Be3"]
[TimeControl "6+1"]
[Termination "adjudication"]
[PlyCount "91"]
[WhiteType "program"]
[BlackType "program"]

1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 Nf6 5.Nf3 e6 6.Be3 cxd4 7.cxd4 Nc6 8.Nc3
Qa5 9.a3
{(a2-a3 Bf8-d6 b2-b4 Qa5-d8 Bf1-d3 O-O O-O e6-e5 h2-h3 e5xd4 Nf3xd4
Nc6xd4 Be3xd4 h7-h6 Rf1-e1 Bc8-e6 Nc3-b5 Bd6-b8 Bd4-c5 Rf8-e8 Bd3-f1
a7-a6 Qd1xd8 Re8xd8 Nb5-d4) +0.36/21 1}
9...Bd6
{(Bf8-d6 Bf1-d3 O-O O-O Qa5-h5 h2-h3 Nf6-d5 Be3-d2 Nd5-f4 Bd2xf4
Bd6xf4 Rf1-e1 Nc6-e7 Nc3-e2 Bf4-d6 Ne2-g3 Bd6xg3 f2xg3 Bc8-d7 Qd1-d2
Bd7-c6 g3-g4 Qh5-h6 g4-g5 Qh6-h5 Nf3-e5) -0.49/27 2}
10.b4
{(b2-b4 Qa5-d8 Bf1-d3 O-O O-O Nc6-e7 Nf3-e5 Ne7-f5 Rf1-e1 Nf5xe3
Re1xe3 Bd6-e7 Bd3-c4 Nf6-d5 Re3-g3 g7-g6 Nc3-e4 Kg8-g7 Qd1-h5 a7-a5
b4-b5 f7-f5) +0.34/21 0}
10...Qd8
{(Qa5-d8 Bf1-d3 a7-a5 b4-b5 Nc6-e7 Be3-g5 O-O O-O b7-b6 Rf1-e1 Bc8-b7
Nf3-e5 Nf6-d5 Nc3xd5 Bb7xd5 Ne5-c6 Qd8-e8 Bg5xe7 Bd6xe7 Bd3-e4 Bd5xe4
Re1xe4 Ra8-c8 Re4-e3 Be7-f6 a3-a4 Qe8-d7 Ra1-a3 h7-h6) -0.21/24 0}
11.Bd3
{(Bf1-d3 O-O O-O Nc6-e7 Nf3-e5 Ne7-f5 Rf1-e1 Nf5xe3 Re1xe3 Bd6-e7
Bd3-c4 Nf6-d5 Re3-d3 g7-g6 Bc4-b5 f7-f6 Ne5-c4 Kg8-g7 Ra1-c1 Bc8-d7
Nc3xd5 e6xd5 Bb5xd7 Qd8xd7) +0.24/21 0}
11...a5
{(a7-a5 b4-b5 Nc6-e7 Be3-g5 O-O O-O b7-b6 Rf1-e1 Bc8-b7 Nf3-e5 Ne7-g6
Bg5xf6 Qd8xf6 Bd3-e4 Ra8-c8 Be4xb7 Rc8xc3 Ne5-d7 Qf6-e7 Bb7-c6 Rf8-d8
Nd7xb6 Bd6xa3 Re1-e3 Rc3xe3 f2xe3 Ba3-b4) -0.20/26 1}
12.b5
{(b4-b5 Nc6-e7 Nc3-e4 Nf6xe4 Bd3xe4 Ne7-d5 Qd1-d3 f7-f5 Be4xd5 e6xd5
Be3-g5 Qd8-d7 O-O O-O Rf1-e1 h7-h6 Bg5-d2 f5-f4 a3-a4 Qd7-f7 Nf3-e5
Bd6xe5 Re1xe5 f4-f3 Qd3xf3 Qf7xf3 g2xf3) +0.35/21 1}
12...Ne7
{(Nc6-e7 Be3-g5 h7-h6 Bg5xf6 g7xf6 O-O Ke8-f8 Rf1-e1 Kf8-g7 h2-h3
Ne7-g6 Bd3xg6 f7xg6 Qd1-b3 Bc8-d7 Nc3-e4 Qd8-e7 Ne4xd6 Qe7xd6 a3-a4
Ra8-c8 Qb3-d3 Rh8-d8 Qd3-e3 b7-b6 Ra1-c1 Rc8xc1 Re1xc1 Rd8-c8 Rc1xc8)
-0.32/25 1}
13.Ne4
{(Nc3-e4 Nf6xe4 Bd3xe4 Ne7-d5 Qd1-d3 Nd5-f6 O-O Nf6xe4 Qd3xe4 a5-a4
Rf1-c1 O-O Nf3-e5 Bc8-d7 Qe4xb7 Bd6xe5 d4xe5 Ra8-b8 Qb7-e4 Bd7xb5
h2-h4 h7-h6 Qe4-g4 Kg8-h7 Ra1-b1 Qd8-d3 Qg4-f3 Kh7-g8) +0.19/22 2}
13...Nxe4
{(Nf6xe4 Bd3xe4 f7-f5 Be4-c2 b7-b6 O-O O-O Bc2-b3 Ne7-d5 Bb3xd5 e6xd5
a3-a4 f5-f4 Be3-d2 Qd8-f6 Rf1-e1 Bc8-g4 h2-h3 Bg4xf3 Qd1xf3 Qf6xd4
Bd2-c3 Qd4-c4 Re1-d1 Ra8-c8 Qf3xd5+ Qc4xd5 Rd1xd5 Bd6-b4 Bc3xb4 a5xb4)
-0.13/29 0}
14.Bxe4
{(Bd3xe4 Ne7-d5 Qd1-d3 Nd5-f6 O-O Nf6xe4 Qd3xe4 a5-a4 Nf3-e5 O-O
Rf1-b1 Bd6-e7 Ne5-c4 f7-f5 Qe4-c2 f5-f4 Be3-d2 f4-f3 Nc4-e5 f3xg2
Bd2-b4 Rf8-f4 Bb4xe7 Qd8xe7 Rb1-e1 Rf4-f5 Qc2-e4) +0.34/23 1}
14...f5
{(f7-f5) -0.20/30 4}
15.Bb1
{(Be4-b1 Ne7-d5 Be3-d2 b7-b6 O-O O-O Rf1-e1 Rf8-e8 Bb1-a2 Bc8-b7
Bd2-g5 Qd8-c7 Qd1-d3 Ra8-c8 Ra1-c1 Qc7-f7 Rc1xc8 Re8xc8 Qd3-e2 Bd6xa3
Qe2xe6 Qf7xe6 Re1xe6 Ba3-b4 Re6xb6) +0.73/24 4}
15...O-O
{(O-O O-O Ne7-d5 Be3-d2 b7-b6 Qd1-e2 Rf8-e8 a3-a4 Bc8-b7 Bb1-a2 Qd8-f6
Rf1-e1 h7-h6 Ra1-c1 Qf6-g6 Nf3-h4 Qg6-f7 Nh4-f3 Qf7-g6) 0.00/25 0}
16.O-O
{(O-O Ne7-d5 Rf1-e1 b7-b6 Qd1-d3 Bc8-b7 Be3-d2 Qd8-f6 Bb1-a2 Ra8-e8
Nf3-e5 Qf6-h4 f2-f3 Kg8-h8 Re1-e2 Qh4-h5 Ra1-c1 Re8-d8 Ba2-c4 h7-h6
Bc4-a2 Nd5-c7 Ba2-b3 Bb7-d5 Bb3xd5 Nc7xd5 Rc1-c6) +0.78/23 2}
16...Nd5
{(Ne7-d5 Be3-d2 b7-b6 Qd1-e2 Qd8-f6 Rf1-e1 Rf8-e8 Bb1-a2 Bc8-b7 a3-a4
h7-h6 Ba2-b3 Ra8-c8 Ra1-c1 Rc8xc1 Re1xc1 Qf6-g6 Nf3-h4 Qg6-f7 Nh4-f3
Qf7-h5 Rc1-e1 Qh5-g4 h2-h3 Qg4-h5 Re1-c1 Nd5-c7 Bb3-a2 Bb7-e4 Ba2-c4
Qh5-g6 Nf3-h4 Qg6-f7) 0.00/32 0}
17.Qd3
{(Qd1-d3 b7-b6 Rf1-e1 Qd8-f6 Bb1-a2 Bc8-b7 Be3-d2 Ra8-e8 Nf3-e5 Qf6-h4
f2-f3 Kg8-h8 Re1-e2 Qh4-h5 Ra1-e1 Re8-c8 g2-g3 f5-f4 g3-g4 Qh5-h4
Ne5-c6 Nd5-e3 Ba2xe6 Bb7xc6 b5xc6 Rc8xc6 Be6-a2 Rc6-c2) +0.67/23 1}
17...b6
{(b7-b6 Rf1-e1 Bc8-b7 Bb1-a2 Ra8-c8 Be3-d2 Qd8-f6 Nf3-e5 Rf8-d8 Ne5-c4
Bd6-c7 Nc4-e5) 0.00/28 0}
18.Bd2
{(Be3-d2 Qd8-f6 Bb1-a2) +0.69/25 3}
18...Bb7
{(Bc8-b7 Rf1-e1 Qd8-f6 Bb1-a2 Ra8-c8 Nf3-e5 Rf8-d8 Ne5-c4 Bd6-c7
Nc4-e5) 0.00/33 1}
19.Re1
{(Rf1-e1 Nd5-c7 Bb1-a2 Qd8-d7 a3-a4 Ra8-c8 h2-h3 Bb7-d5 Qd3-e2 h7-h6
Ba2xd5 Nc7xd5 Qe2xe6+ Qd7xe6 Re1xe6 Rf8-d8 Kg1-f1 Kg8-f7 Re6-e2 Nd5-c3
Re2-e3 Nc3-e4 g2-g3 Rc8-c2 Re3-d3 Rc2-b2 Ra1-c1 Rb2-a2) +0.52/23 1}
19...Qf6
{(Qd8-f6 Bb1-a2 Ra8-c8 Re1-e2 Rf8-e8 Ra1-e1 h7-h6 Nf3-e5 Bd6xe5 Re2xe5
Qf6-g6 f2-f3 Nd5-c7 a3-a4 Bb7-d5 Ba2xd5 Nc7xd5 Qd3-e2 Qg6-f6 Re5xe6
Qf6xe6 Qe2xe6+ Re8xe6 Re1xe6 Rc8-c4 Re6-d6 Rc4xd4 Bd2-e1 Kg8-f7
Rd6-d7+ Kf7-e6 Rd7xg7 Rd4-d1 Rg7-g6+ Ke6-e5) -0.12/32 2}
20.Ba2
{(Bb1-a2 Ra8-e8 Nf3-e5 Qf6-h4 Ra1-c1 Nd5-f6 f2-f3 Bb7-d5 Ba2xd5 Nf6xd5
Rc1-c6 Re8-d8 g2-g3 Qh4-h3 Ne5-c4 Bd6xg3 h2xg3 Qh3xg3+ Kg1-f1 Qg3-h2
Nc4xb6 Nd5xb6 Rc6xb6 Qh2-h3+ Kf1-e2 e6-e5 Ke2-d1 Rd8xd4 Qd3-b3+
Kg8-h8) +0.73/21 0}
20...Rac8
{(Ra8-c8 Nf3-e5 Rf8-d8 Qd3-g3 h7-h6 Ra1-c1 Rc8xc1 Re1xc1 f5-f4 Qg3-d3
Bd6xe5 d4xe5 Qf6xe5 Rc1-e1 Qe5-f6 Qd3-e4 Kg8-f7 a3-a4 g7-g6 g2-g3
Qf6-f5 Qe4-d4 Qf5-h3 Qd4-e4) 0.00/30 0}
21.Re2
{(Re1-e2 Rf8-e8 Ra1-e1 h7-h6 Nf3-e5 Bd6xe5 Re2xe5 Qf6-g6 f2-f3 Qg6-f7
h2-h3 Rc8-d8 Kg1-h1 Kg8-h8 Qd3-e2 Qf7-d7 Re1-c1 Nd5-c7 a3-a4 Qd7-d6
Qe2-c4 Bb7-d5 Qc4xc7 Bd5xa2) +0.96/20 1}
21...Qg6
{(Qf6-g6 Nf3-e5 Bd6xe5 Re2xe5 Nd5-c7 Qd3-g3 Qg6-f7 Ra1-e1 Rf8-e8
Ba2-c4 Rc8-d8 Qg3-c3 Qf7-d7 Re1-c1 Rd8-c8 Qc3-b2 Bb7-e4 f2-f3 Be4-d5
Bc4-f1 Bd5-b7 Rc1-e1 Nc7-d5 Qb2-b3 Nd5-c7) 0.00/34 0}
22.Rae1
{(Ra1-e1 Rf8-f6 g2-g3 h7-h6 Nf3-e5 Bd6xe5 Re2xe5 Rc8-d8 Qd3-e2 Nd5-c7
Re1-c1 Nc7-d5 a3-a4 Qg6-f7 Qe2-d3 Qf7-d7 Ba2-b3 Kg8-h8 h2-h4 Nd5-c7
Bb3-c2 Rf6-f8 h4-h5 Qd7-f7 Bc2-b3 Bb7-e4) +0.50/23 2}
22...Rf6
{(Rf8-f6 g2-g3 h7-h6 Ba2-b3 Rc8-d8 a3-a4 Rd8-e8 Nf3-e5 Bd6xe5 Re2xe5
Qg6-f7 Qd3-e2 Qf7-d7 Qe2-h5 Re8-c8 Qh5-e2) 0.00/29 1}
23.g3
{(g2-g3 h7-h6 Nf3-e5 Bd6xe5 Re2xe5 Qg6-f7 Ba2-b3 Rc8-d8 a3-a4 Kg8-h8
Qd3-e2 Nd5-c7 Bd2-c1 Bb7-d5 Bb3-c2 Kh8-g8 Re5-e3 f5-f4 g3xf4 Rf6xf4
Qe2-d3 Qf7-f5 Re3-g3 Qf5xd3 Bc2xd3) +0.60/22 1}
23...h6
{(h7-h6 Ba2-b3 Rc8-d8 Nf3-e5 Bd6xe5 Re2xe5 Qg6-f7 Qd3-e2 Nd5-c7 Re1-c1
Nc7-d5) 0.00/31 1}
24.Ne5
{(Nf3-e5 Bd6xe5 Re2xe5 Kg8-h8 Ba2-b3 Qg6-f7 a3-a4 Rc8-d8 h2-h3 Nd5-c7
Re1-c1 Qf7-e7 Qd3-e2 Nc7-d5 Rc1-e1 Nd5-c7 Qe2-h5 Bb7-d5 Bb3-c2 Qe7-f7
Qh5-e2 Bd5-b7 d4-d5 Nc7xd5 Re5xe6 Qf7xe6 Qe2xe6 Rf6xe6 Re1xe6)
+0.58/21 0}
24...Bxe5
{(Bd6xe5 Re2xe5 a5-a4 Ba2-b1 Nd5-e7 Bd2-b4 Ne7-d5) 0.00/33 0}
25.Rxe5
{(Re2xe5 Kg8-h8 Ba2-b3 Rc8-d8 a3-a4 Qg6-f7 h2-h3 Nd5-c7 Re1-c1 Qf7-e7
Qd3-e2 Nc7-d5 Rc1-e1 Qe7-a3 Qe2-f3 Qa3-e7 Qf3-d3 Qe7-f7 Qd3-e2 Nd5-c7
Bd2-c1 Rd8xd4 Bc1-b2 Rd4-b4 Qe2-d1 Bb7-d5 Re5xd5 Nc7xd5 Bb2xf6 Qf7xf6
Bb3xd5 e6xd5) +0.50/24 0}
25...Qf7
{(Qg6-f7 Ba2-b3 Nd5-c7 Re1-c1 Bb7-e4 Qd3-c3 Be4-b7) 0.00/36 1}
26.a4
{(a3-a4 Kg8-h8 Ba2-b3 Rc8-d8 Qd3-e2 Nd5-c7 Bd2-f4 Nc7-d5 Bf4-c1 Nd5-c3
Qe2-d3 Nc3-d5 Bc1-d2 Qf7-d7 h2-h4 Qd7-f7 Re1-c1 Qf7-e7 h4-h5 Qe7-a3
Rc1-e1 Nd5-c7 Qd3-c4 Qa3-d6 Bb3-d1 Qd6-d7 Qc4-c3 Qd7-f7) +0.44/22 0}
26...Kh8
{(Kg8-h8 Ba2-b3 Qf7-d7 Qd3-e2 Rc8-e8 h2-h4 Nd5-c7 Bd2-f4 Nc7-d5
Bf4-d2) 0.00/31 0}
27.Bb3
{(Ba2-b3 Rc8-d8 Qd3-e2 Nd5-c7 Bd2-f4 Nc7-d5 Bf4-c1 Nd5-c3 Qe2-d3
Nc3-d5 Bc1-d2 Rf6-g6 Qd3-e2 Nd5-c7 Bd2-e3 Rg6-f6 Bb3-c2 Qf7-d7 Be3-f4
Kh8-g8 Bf4-c1 Qd7-d6 Qe2-c4 Rf6-f7 Bc2-b3 Bb7-d5 Qc4-c3 Bd5xb3)
+0.45/23 2}
27...Qd7
{(Qf7-d7 Qd3-e2 Rc8-e8 h2-h4 Kh8-g8 Bb3-c2 Re8-c8 Bc2-b3) 0.00/33 0}
28.h3
{(h2-h3 Nd5-c7 h3-h4) +0.39/20 1}
28...Nc7
{(Nd5-c7 h3-h4 Bb7-d5 Bb3-c2 Nc7-e8 Bd2-f4 Bd5-c4 Qd3-f3 Bc4-d5)
0.00/33 1}
29.h4
{(h3-h4 Bb7-d5 Bb3-d1 Nc7-e8 Bd2-f4 Bd5-c4 Qd3-a3 Ne8-c7 Bf4-d2 Bc4-d5
Bd1-e2 Rf6-f8 Be2-d3 Rf8-d8 Re1-c1 Nc7-e8 Rc1xc8 Rd8xc8 Bd2-f4 Ne8-f6
Re5-e1 Bd5-e4 Bd3xe4 Nf6xe4 Qa3-d3) +0.37/19 1}
29...Nd5
{(Nc7-d5 Kg1-h2 Rc8-f8 Kh2-g1 Rf8-c8) 0.00/29 0}
30.h5
{(h4-h5 Qd7-d6 Kg1-h2 Qd6-d7 Qd3-e2 Nd5-c7 Kh2-g1 Bb7-e4 Re5xe4 f5xe4
Qe2xe4 Nc7-d5 Bb3-c2 Rc8xc2 Qe4xc2 Qd7-f7 Re1-c1 Qf7xh5 Qc2-e4 Rf6-f8
Bd2-e3 Rf8-e8 Qe4-e5 Qh5xe5 d4xe5 Nd5xe3) +0.30/18 0}
30...Rcf8
{(Rc8-f8 Re1-c1 Rf8-g8 Qd3-e2 Rg8-d8 Rc1-e1 Rd8-e8 Bd2-f4 Nd5-c3
Qe2-d3 Nc3-d5) 0.00/32 1}
31.Rc1
{(Re1-c1 Rf6-f7) +0.14/19 1}
31...Qf7
{(Qd7-f7 Qd3-f3 Rf8-d8 Bb3xd5 Bb7xd5 Re5xd5 e6xd5 Bd2-f4 Rf6-e6 Bf4-e5
Kh8-g8 Kg1-g2 Re6-e7 Rc1-c6 Re7-e6 Rc6-c7 Re6-e7 Rc7-c6) 0.00/34 0}
32.Bd1
{(Bb3-d1 Qf7-d7) +0.71/19 1}
32...f4
{(f5-f4 Bd1-c2 Qf7-g8 g3-g4 f4-f3 Bc2-b3 Qg8-f7 Bb3-c2) 0.00/32 0}
33.Bc2
{(Bd1-c2 Qf7-g8 g3-g4 Rf8-c8 Bc2-b1 Rc8xc1+ Bd2xc1 Nd5-b4 Qd3-e2
Qg8-c8 Bc1-d2 Bb7-d5 f2-f3 Rf6-f8 Kg1-g2 Qc8-c4 Qe2xc4 Bd5xc4 Bb1-e4
Kh8-g8 g4-g5 h6xg5 Re5xg5) +1.74/16 1}
33...Qg8
{(Qf7-g8 g3-g4 f4-f3 Kg1-f1 Rf8-c8 Bc2-b3 Rc8xc1+ Bd2xc1 Nd5-b4 Qd3-c3
Nb4-d5 Qc3-c2 Nd5-b4 Qc2-c7 Bb7-d5 Bb3xd5 Nb4xd5 Qc7-c6 Qg8-h7 Qc6-e8+
Qh7-g8) 0.00/36 1}
34.g4
{(g3-g4 Nd5-b4 Bd2xb4 a5xb4 Bc2-b3 Bb7-d5 Bb3xd5 e6xd5 Rc1-c7 Rf8-c8
Rc7-e7 Rf6-f7 Kg1-g2 f4-f3+ Kg2-g3 Rf7xe7 Re5xe7 Qg8-d8 Qd3-f5 Qd8-d6+
Kg3-h3 Qd6xe7 Qf5xc8+ Kh8-h7 Qc8-f5+ Kh7-h8 Qf5xd5 Qe7-e2 Kh3-g3)
+1.41/19 0}
34...f3
{(f4-f3 Kg1-f1 Nd5-b4 Bd2xb4 a5xb4 Bc2-b3 Bb7-d5 Bb3xd5 e6xd5 Re5-f5
Rf6xf5 g4xf5 Rf8-c8 Rc1-c6 Qg8-e8 Rc6xc8 Qe8xc8 Qd3xf3 Qc8-c4+ Kf1-g2
Qc4xd4 Qf3-e2 b4-b3 Qe2-e8+ Kh8-h7 Qe8-g6+ Kh7-h8) 0.00/35 1}
35.Kh2
{(Kg1-h2 Rf8-d8 Kh2-h3 Rd8-f8 Rc1-g1 Nd5-b4 Bd2xb4 a5xb4 Bc2-b3 Rf8-c8
Rg1-e1 Bb7-d5 Bb3xd5 e6xd5 Re5-e7 Rc8-c3 Qd3-d2 Rc3-c4 Qd2-e3 Rc4-c2
Re7-e8 Rf6-f8 Re8xf8 Qg8xf8 Qe3-e8 Rc2-c8 Qe8-e6) +1.96/18 1}
35...Rd8
{(Rf8-d8 Rc1-e1) -1.36/27 5}
36.Kh3
{(Kh2-h3 Rd8-d6 Qd3-a3) +2.15/21 0}
36...Rd7
{(Rd8-d7) -0.55/20 0}
37.Bb1
{(Bc2-b1 Rd7-f7 Rc1-g1) +2.43/19 1}
37...Rd8
{(Rd7-d8 Kh3-g3 Rd8-d7 Rc1-e1 Rd7-d6 Kg3-h2 Nd5-b4 Qd3-c3 Nb4-d5
Qc3-c1 Nd5-b4 Qc1-b2 Nb4-d5 g4-g5 h6xg5 Bd2xg5 Qg8-f7 Bb1-g6 Rf6xg6
h5xg6 Qf7xg6 Qb2-b1 Qg6xb1 Re1xb1 Kh8-g8 Rb1-c1 Kg8-f7 Kh2-g3 Rd6-d7
Re5-e1 Kf7-g6 Bg5-e3 Kg6-f7 Kg3xf3) -1.25/25 1}
38.Rg1
{(Rc1-g1 Nd5-b4 Qd3-e3) +2.55/20 1}
38...Nb4
{(Nd5-b4 Qd3-c4 Rd8-c8 Qc4-f1 Nb4-d5 g4-g5 h6xg5 Bd2xg5 Qg8-f7 Rg1-g4
Rf6-f5 Bb1xf5 e6xf5 Rg4-h4 Rc8-f8 Kh3-h2 Nd5-f6 Bg5xf6 Qf7xf6 Qf1-h3
Bb7-e4 Qh3-g3 Kh8-g8) -1.32/22 0}
39.Qe3
{(Qd3-e3 Nb4-d5 Qe3-b3 Rd8-c8 Kh3-h2 Rc8-f8 Qb3-d3 Rf8-f7 Rg1-g3
Rf7-d7 Qd3-b3 Nd5-e7 Qb3-c4 Qg8-d8 Qc4-d3 Qd8-g8 g4-g5 Rf6-f5 Qd3-e3
Qg8-f7 g5-g6) +2.71/18 0}
39...Nd5
{(Nb4-d5 Qe3-d3 Nd5-b4 Qd3-c4 Rd8-c8 Qc4-f1 Qg8-e8 Rg1-g3 Qe8-d7
Bd2-e3 Bb7-d5 g4-g5 h6xg5 Re5xg5 Bd5-c4 Qf1-e1 Nb4-d3 Bb1xd3 Bc4xd3
Rg5xg7 Bd3-f5+ Kh3-h2 Qd7xg7 Rg3xg7 Kh8xg7 Be3-g5 Rf6-f8 Qe1-e3)
-1.47/23 0}
40.Qa3
{(Qe3-a3 Qg8-f7 Qa3-d3) +2.83/20 1}
40...Qf7
{(Qg8-f7 Qa3-d3 Rf6-f5 Re5xf5 e6xf5 Qd3xf5 Qf7xf5 Bb1xf5 Nd5-e7 Bd2-e3
Ne7xf5 g4xf5 Bb7-e4 Rg1-c1 Rd8-d5 Kh3-g4 Be4xf5+ Kg4xf3 Kh8-h7 Rc1-c6
Bf5-d3 Kf3-g3 Rd5xh5 Be3-f4 Bd3-e4 Bf4-e5 Rh5-f5 f2-f4 Rf5-f7 Rc6xb6
Be4-c2 Rb6-a6 Bc2xa4 b5-b6 Ba4-b3 Ra6xa5 Rf7-b7 Ra5-a7 Rb7xb6 Ra7xg7+
Kh7-h8) -1.54/28 0}
41.Qd3
{(Qa3-d3 Rf6-f5 Re5xf5 e6xf5 Qd3xf5 Nd5-f6 Rg1-c1 Qf7-g8 Bd2xh6 Nf6xg4
Qf5xg4 g7xh6 Qg4xg8+ Kh8xg8 Rc1-g1+ Kg8-f7 Rg1-g6 Rd8xd4 Bb1-a2+
Kf7-e8 Rg6xh6 Rd4xa4 Rh6xb6 Ra4xa2 Rb6xb7 Ra2xf2) +2.97/18 1}
41...Rf5
{(Rf6-f5 Re5xf5 e6xf5 Qd3xf5 Qf7xf5 Bb1xf5 Nd5-e7 Bd2-e3 Ne7xf5 g4xf5
Bb7-e4 Rg1-c1 Rd8-d5 Rc1-c6 Be4xf5+ Kh3-g3 Kh8-h7 Rc6xb6 Bf5-c2 Rb6-e6
Bc2xa4 b5-b6 Rd5-b5 d4-d5 Ba4-b3 Re6-e7 Bb3xd5 Be3-d4 Kh7-g8 Re7xg7+
Kg8-f8 Rg7-h7) -1.44/24 0}
42.Rxf5
{(Re5xf5 e6xf5 Qd3xf5 Nd5-f6 Rg1-c1 Bb7-d5 Qf5-g6 Qf7-f8 Rc1-c7 Bd5-e6
Bb1-f5 Be6xf5 g4xf5 Rd8-d7 Rc7xd7 Nf6xd7 Kh3-g3 Qf8-e7 Qg6-e6 Qe7-d8
Kg3xf3 Nd7-f6 Bd2-e3 Nf6xh5) +3.24/18 0}
42...exf5
{(e6xf5 Qd3xf5 Nd5-f6 Bd2-e3 Bb7-c8 Qf5-g6 Qf7-e7 Bb1-f5 Bc8xf5 Qg6xf5
Nf6-d5 Qf5xf3 Nd5xe3 Qf3xe3 Qe7-f7 f2-f3 Qf7-a2 g4-g5 Qa2-d5 g5xh6
Qd5xh5+ Kh3-g2 Qh5-g6+ Kg2-f2 Qg6-c2+ Qe3-e2 Qc2xe2+ Kf2xe2 Rd8xd4
h6xg7+ Kh8-g8 Rg1-g6 Rd4xa4 Rg6xb6) -1.44/26 0}
43.Qxf3
{(Qd3xf3) +3.08/19 1}
43...fxg4+
{(f5xg4+ Qf3xg4 Bb7-c8 Qg4xc8 Qf7-f3+ Rg1-g3 Qf3-h1+ Kh3-g4 Rd8xc8
Bb1-f5 Rc8-f8 Bd2-e3 Qh1-d1+ Rg3-f3 Nd5-f6+ Kg4-g3 Qd1-h1 Be3-f4
Nf6xh5+ Kg3-g4 Rf8xf5 Kg4xf5 Qh1xf3 Kf5-e6 Nh5xf4+ Ke6-e5 Nf4-e2
Ke5-d6 Qf3xf2) +10.90/22 0}
44.Qxg4
{(Qf3xg4 Bb7-c8 Qg4xc8 Qf7-f3+ Rg1-g3 Qf3-h1+ Kh3-g4 Rd8xc8 Bb1-f5
Rc8-d8 Bd2xh6 Nd5-f6+ Kg4-g5 Qh1xh5+ Kg5-f4 Qh5xh6+ Kf4-e5 Qh6-h5
Ke5-f4 Rd8xd4+ Kf4-e3 Rd4xa4 Bf5-b1 Qh5xb5 Rg3-g1 Qb5-d5) -12.48/17 0}
44...Bc8
{(Bb7-c8 Qg4xc8 Qf7-f3+ Kh3-h2 Rd8xc8 Rg1-g2 Qf3xh5+ Kh2-g3 Qh5-d1
f2-f3 Qd1xb1 Kg3-h2 Qb1-d3 Rg2-f2 Rc8-c2 Bd2-e1 Rc2-c1 Be1-d2 Qd3xd4
Kh2-g3 Rc1-g1+ Rf2-g2 Rg1xg2+ Kg3xg2 Qd4xd2+ Kg2-g3 Qd2-d4 Kg3-g2
Qd4xa4 Kg2-g3 Qa4xb5 Kg3-g4) +11.62/23 0}
45.Kg3
{(Kh3-g3 Bc8xg4) -13.82/17 0}
45...Bxg4
{(Bc8xg4 f2-f4 Qf7xh5 Kg3-f2 Bg4-d1 Rg1-g2 Nd5-f6 Kf2-g1 Bd1xa4 Bb1-g6
Qh5-d1+ Kg1-h2 Qd1-f3 Rg2-g3 Nf6-g4+ Rg3xg4 Qf3xg4 Bg6-d3 Rd8xd4
Bd2xa5 b6xa5 Bd3-b1 Qg4xf4+ Kh2-h1 Rd4-d1+ Kh1-g2 Rd1xb1) +15.25/21 0}
46.Be4
{(Bb1-e4 Nd5-f6 Be4-c6 Nf6xh5+ Kg3-h2 Qf7xf2+ Rg1-g2 Qf2xd4 Bc6-d7
Bg4xd7 Bd2-e1 Qd4-e5+ Be1-g3 Nh5xg3 Rg2xg3 Qe5-h5+ Kh2-g1 Bd7xb5
Rg3-g2 Rd8-d1+ Kg1-f2 Rd1-d2+ Kf2-g1 Qh5-d1+ Kg1-h2) -19.56/16 1
Arena Adjudication}
0-1
[/pgn]
I get Qxf5 on any depth, even one ply. It's hard to fix a nonreproducible mistake. I never observe blunders like this. Time shouldn't be an issue with a full second increment. As for the results, the difference between 55.5 and 52.5 out of 100 is not statistically significant. Dragon 2 generally outperforms Dragon 1, regardless of opponent, but the margin is below the margin of error for runs of a hundred or so games.
Komodo rules!
Top
frcha
Posts: 221
Joined: Thu Jan 28, 2010 5:47 pm

Re: what is wrong with Komodo Dragon 2 here?

Post by frcha »

I get Qxf5 on any depth, even one ply. It's hard to fix a nonreproducible mistake. I never observe blunders like this.
Please check this position
[d]3r4/3rk1p1/2p1pnp1/2P1KpP1/ppBP3R/3R2P1/PP3P2/8 w - - 2 36

This one can be reproduced if you give 256h no multipv maybe just 1 core though you can see it briefly at 8 cores:

Komodo Dragon 2 plays Bxe6?

[pgn][Event "FritzDragonSFGauntlet 8 Cores Ponder off"]
[Site "Arena 256h 6s+1"]
[Date "2021.06.10"]
[Round "34"]
[White "KomodoDragon-2"]
[Black "Stockfish_13"]
[Result "0-1"]
[WhiteElo "3300"]
[BlackElo "3800"]
[ECO "B01"]
[Opening "Scandinavian"]
[Time "14:44:24"]
[Variation "2...Qxd5, Main Line, 6.Bc4 Bf5"]
[TimeControl "6+1"]
[Termination "adjudication"]
[PlyCount "79"]
[WhiteType "program"]
[BlackType "program"]

1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5 4.d4 Nf6 5.Nf3 c6 6.Bc4 Bf5 {(Bc8-f5 Bc1-d2
Nb8-d7 Qd1-e2 Qa5-c7 O-O-O e7-e6 Nf3-h4 Bf5-g6 Nh4xg6 h7xg6 h2-h4 Nd7-b6
Bc4-b3 Bf8-e7 Kc1-b1 O-O-O Bd2-g5 Rh8-e8 Bg5-c1 Nb6-d5 Nc3-e4 Nf6xe4
Qe2xe4 Be7-f6 c2-c3) -0.87/24 1} 7.Nh4 {(Nf3-h4 e7-e6 Nh4xf5) +0.65/19 1}
7...Bg6 {(Bf5-g6 Bc1-d2 Qa5-h5 Nh4xg6 Qh5xd1+ Ra1xd1 h7xg6 h2-h4 Nb8-d7
g2-g3 e7-e6 Bc4-d3 Bf8-e7 O-O Nd7-b6 Kg1-g2 Ra8-d8 Nc3-e2 O-O Rf1-e1
Rd8-d7 c2-c3 a7-a6 Bd2-e3 Rf8-d8 Ne2-f4 Nb6-d5 Nf4xd5 Nf6xd5) -0.53/26 0}
8.Bd2 {(Bc1-d2 Qa5-h5 Nh4xg6) +0.62/21 2} 8...Nbd7 {(Nb8-d7 Nc3-d5 Qa5-d8
Nd5xf6+ Nd7xf6 Nh4xg6 h7xg6 c2-c3 e7-e6 Qd1-f3 Ra8-c8 O-O Bf8-e7 Rf1-d1
a7-a5 g2-g3 b7-b5 Bc4-e2 Qd8-b6 a2-a4 O-O a4xb5 c6xb5 Qf3-d3 Rc8-b8 Be2-f3
Rf8-d8 Rd1-e1 Nf6-d5 h2-h4 Be7-f6 Qd3-e2 Nd5-e7 Kg1-g2 b5-b4) -0.54/28 1}
9.Nd5 {(Nc3-d5 Qa5-d8 Nd5xf6+ g7xf6 c2-c3 e7-e6 a2-a4 f6-f5 g2-g3 Bf8-g7
O-O O-O Bc4-e2 a7-a5 Be2-f3 Ra8-c8 Qd1-e2 Bg7-f6 Nh4-g2 Rf8-e8 Ra1-d1
e6-e5 d4xe5 Nd7xe5) +0.75/20 1} 9...Qd8 {(Qa5-d8 Nd5xf6+ Nd7xf6 Nh4xg6
h7xg6 c2-c3 e7-e6 Qd1-f3 Ra8-c8 O-O Bf8-e7 Rf1-d1 O-O g2-g3 Qd8-b6 a2-a4
a7-a5 b2-b3 Rf8-d8 h2-h4 Rd8-d7 Kg1-g2 Rc8-d8 Rd1-e1 c6-c5 d4xc5 Be7xc5
Bd2-g5 Bc5-e7 Re1-d1 Rd7xd1 Ra1xd1 Rd8xd1 Qf3xd1 Be7-c5 Qd1-f3 Qb6-c7
Bc4-b5) -0.57/28 0} 10.Nxf6+ {(Nd5xf6+ Nd7xf6 Nh4xg6) +0.81/19 0} 10...
Nxf6 {(Nd7xf6 Nh4xg6 h7xg6 c2-c3 e7-e6 Qd1-f3 Ra8-c8 g2-g3 Bf8-e7 O-O O-O
Rf1-d1 b7-b5 Bc4-f1 a7-a5 a2-a3 Qd8-b6 h2-h4 Rf8-d8 b2-b4 Rc8-a8 Rd1-e1
Nf6-d5 h4-h5 g6xh5 Qf3xh5 g7-g6 Qh5-e2 a5xb4 a3xb4) -0.54/27 0} 11.Nxg6 {
(Nh4xg6 h7xg6 c2-c3 Qd8-b6 Qd1-c2 e7-e6 O-O-O Qb6-a5 Qc2-d3 Qa5-f5 Qd3-e2
Bf8-d6 g2-g3 g6-g5 Bd2-e3 g5-g4 Bc4-d3 Qf5-h5 c3-c4 Qh5-h3 Qe2-c2 O-O-O
Kc1-b1 Bd6-c7 a2-a3 Qh3-h5 Rd1-e1) +0.83/20 0} 11...hxg6 {(h7xg6 c2-c3
e7-e6 Qd1-f3 Ra8-c8 a2-a4 Qd8-c7 g2-g3 Bf8-d6 Bd2-g5 c6-c5 Bc4-b5+ Ke8-f8
d4xc5 Bd6xc5 h2-h4 a7-a6 Bb5-e2 Bc5-e7 O-O Nf6-d5 c3-c4 Nd5-b4 Bg5-d2
Nb4-c6 Bd2-c3 Be7-b4 Bc3xb4+ Nc6xb4 Ra1-d1) -0.68/28 1} 12.c3 {(c2-c3
Qd8-b6 a2-a4 e7-e6 a4-a5 Qb6-c7 g2-g3 Bf8-d6 Bc4-e2 O-O Be2-f3 Ra8-e8 O-O
c6-c5 d4xc5 Bd6xc5 Bd2-g5 e6-e5 b2-b4 e5-e4 b4xc5 e4xf3) +0.75/20 0} 12...
e6 {(e7-e6 Qd1-f3 Bf8-e7 h2-h4 Ra8-c8 a2-a4 a7-a6 g2-g3 Qd8-a5 Bc4-e2
Qa5-d5 Bd2-e3 a6-a5 Be3-f4 Qd5xf3 Be2xf3 Nf6-d5 Bf4-d2 Be7-f6 Bf3-g2
Rc8-d8 O-O-O Rd8-d7 Kc1-c2 Nd5-b6 b2-b3 Nb6-d5) -0.64/28 1} 13.Qf3 {
(Qd1-f3 Bf8-e7 h2-h4) +0.98/18 0} 13...Rc8 {(Ra8-c8 a2-a4 Bf8-e7 h2-h4
a7-a6 g2-g3 Qd8-a5 Ke1-f1 Qa5-f5 Kf1-g2 Rc8-d8 Rh1-d1 Qf5xf3+ Kg2xf3 a6-a5
Bc4-f1 Rd8-d7 Rd1-e1 Nf6-d5 Bf1-c4 Nd5-b6 Bc4-b3 Nb6-d5 Kf3-g2 Rd7-d8
Re1-e2 b7-b6 Bb3-c4 Ke8-d7 Ra1-h1) -0.57/31 4} 14.g3 {(g2-g3 Bf8-e7 h2-h4)
+0.81/19 1} 14...Be7 {(Bf8-e7 O-O) -0.60/26 1} 15.h4 {(h2-h4 b7-b5 Bc4-d3
a7-a5 O-O O-O Rf1-d1 Qd8-b6 Bd2-g5 b5-b4 Kg1-g2 c6-c5 d4xc5 Be7xc5 Bg5xf6
g7xf6 h4-h5 f6-f5 h5xg6 f7xg6 Bd3-c4 b4xc3) +0.78/19 0} 15...b5 {(b7-b5
Bc4-e2 b5-b4 Be2-a6 Rc8-c7 O-O O-O Rf1-d1 b4xc3 b2xc3 Qd8-d5 Ba6-e2 Rc7-d7
Ra1-b1 Rf8-c8 a2-a4 Qd5xf3 Be2xf3 c6-c5 d4xc5 Be7xc5 a4-a5 Rc8-d8 Bd2-e1
Rd7xd1 Bf3xd1) -0.51/23 0} 16.Bd3 {(Bc4-d3 a7-a5 a2-a4) +0.83/18 0} 16...
b4 {(b5-b4 Bd3-a6 Rc8-c7 O-O b4xc3 b2xc3 O-O Rf1-d1 Qd8-d5 Ba6-e2 Rc7-d7
Ra1-b1 Rf8-c8 Qf3xd5 c6xd5 Be2-a6 Rc8-d8 f2-f3 Nf6-e8 a2-a4 Rd7-c7 Rb1-b3
Ne8-d6 Bd2-f4 Rc7-c6 Ba6-e2 Rc6-c8 Rd1-b1 Nd6-c4 Rb3-b7) -0.47/27 0} 17.
Ba6 {(Bd3-a6 Rc8-c7 Bd2-f4 Be7-d6 Bf4-g5 Bd6-e7 O-O O-O Rf1-d1 Nf6-d5
c3-c4 Nd5-b6 c4-c5 Nb6-d5 Bg5-e3 Nd5xe3 Qf3xe3 Qd8-d5 Ra1-c1 Be7-f6 Rc1-c4
Rf8-b8) +0.66/19 0} 17...Rc7 {(Rc8-c7 O-O O-O Rf1-d1 b4xc3 b2xc3 Qd8-d5
Ba6-e2 Rc7-b7 Bd2-c1 Rb7-d7 Kg1-g2 Qd5xf3+ Be2xf3 c6-c5 Bc1-e3 Rf8-c8
Ra1-b1 c5xd4 c3xd4 Nf6-d5 Bf3xd5 e6xd5 Rb1-b5 Rc8-c2 Rd1-d2 Rc2xd2 Be3xd2
Be7-f6 Bd2-c3) -0.29/28 1} 18.Bf4 {(Bd2-f4 Be7-d6 Bf4-g5 Bd6-e7 O-O O-O
Rf1-d1 b4xc3 b2xc3 Qd8-d5 Kg1-g2 Qd5xf3+ Kg2xf3 c6-c5 Bg5-f4 Rc7-c6 Ba6-b7
Rc6-b6 Ra1-b1 c5xd4 Rb1xb6 a7xb6 Rd1xd4 Kg8-h7 Rd4-c4 Rf8-d8 a2-a4)
+0.58/21 1} 18...Bd6 {(Be7-d6 Bf4-g5 b4xc3 b2xc3 Bd6-e7 O-O Qd8-d5 Kg1-g2
O-O Rf1-d1 c6-c5 Bg5-f4 Rc7-d7 Ba6-b5 Rd7-d8 d4xc5 Qd5xc5 c3-c4 Rd8xd1
Ra1xd1 a7-a6 Bb5xa6 Qc5-a5 Ba6-b5 Qa5xa2 Bf4-e3) -0.25/28 0} 19.Bg5 {
(Bf4-g5 Bd6-e7 O-O O-O Rf1-d1 b4xc3 b2xc3 Qd8-d5 Kg1-g2 c6-c5 Bg5-f4
Rc7-d7 Ba6-b5 Qd5xf3+ Kg2xf3 Rd7-b7 Bb5-a4 c5xd4 c3xd4 Rf8-d8 Ra1-c1
Nf6-d5 Ba4-c6 Rb7-b2 Bc6xd5 Rd8xd5 Rc1-c7 g6-g5 h4xg5 Be7xg5 Bf4xg5
Rd5xg5) +0.49/22 1} 19...Be7 {(Bd6-e7 O-O O-O Rf1-d1 b4xc3 b2xc3 Qd8-d5
Kg1-g2 c6-c5 Bg5-f4 Rc7-d7 Ba6-b5 Qd5xf3+ Kg2xf3 Rd7-b7 c3-c4 c5xd4 Bf4-e5
Nf6-d7 Be5xd4 Nd7-c5 Ra1-b1 a7-a6 Bd4xc5 Be7xc5 Bb5xa6 Rb7-a7 Rb1-b5
Ra7xa6 Rb5xc5 Ra6-a3+ Kf3-e2 Ra3xa2+ Ke2-e3 Rf8-b8 Rc5-b5 Rb8-c8 c4-c5)
-0.25/26 0} 20.O-O {(O-O b4xc3 b2xc3 Nf6-d5 Bg5-d2 O-O Ra1-d1 c6-c5 d4xc5
Be7xc5 c3-c4 Qd8-f6 Qf3xf6 Nd5xf6 Kg1-g2 Rc7-c6 Ba6-b5 Rc6-b6 Bd2-a5
Rb6-b7 Kg2-f3 Rf8-b8 a2-a4 e6-e5 Rd1-d8+ Rb8xd8 Ba5xd8) +0.63/21 0} 20...
O-O {(O-O Rf1-d1 b4xc3 b2xc3 Qd8-d5 Kg1-g2 Rf8-d8 Bg5-f4 Rc7-d7 Ra1-b1
Qd5xf3+ Kg2xf3 Nf6-d5 Bf4-d2 Be7-f6 Kf3-e2 Nd5-b6 Rb1-c1 Kg8-h8 f2-f4
Rd7-d5 Ba6-d3 Rd5-a5 Rc1-c2 Bf6-e7 Rd1-b1 Ra5-a3 Rb1-b3) -0.29/30 2} 21.
Rfd1 {(Rf1-d1 b4xc3 b2xc3 Nf6-d5 Bg5-d2 c6-c5 d4xc5 Be7xc5 Kg1-g2 Qd8-f6
Ra1-b1 Nd5-b6 c3-c4 e6-e5 Bd2-c3 Rf8-e8 Ba6-b5 Re8-e6 Rd1-d2 Kg8-h7 Bc3-a5
e5-e4 Qf3xf6 g7xf6) +0.45/22 1} 21...Qd5 {(Qd8-d5 Kg1-g2 b4xc3 b2xc3
Rf8-d8 Ba6-e2 c6-c5 d4xc5 Qd5xf3+ Be2xf3 Rc7xc5 Rd1xd8+ Be7xd8 Bg5-e3
Rc5-a5 a2-a4 Bd8-b6 Be3-d2 Ra5-c5 Ra1-b1 Rc5-a5 Rb1-b4 Kg8-f8 Rb4-c4
Kf8-e7 Bf3-c6 Nf6-e8 Bd2-c1 Ne8-d6 Bc1-a3 Ra5-f5) -0.24/30 1} 22.Qxd5 {
(Qf3xd5 Nf6xd5 c3-c4) +0.49/22 1} 22...Nxd5 {(Nf6xd5 c3-c4 Nd5-f6 c4-c5
Rc7-d7 Ba6-e2 Rf8-d8 Bg5-e3 Nf6-d5 Be2-f3 a7-a5 Rd1-c1 e6-e5 Bf3xd5 e5xd4
Bd5xc6 Rd7-c7 Be3xd4 Rd8xd4 Bc6-a4 Rc7xc5 Rc1xc5 Be7xc5 Ra1-c1 Rd4-d5
Kg1-g2 Rd5-f5 f2-f3 Rf5-e5 Rc1-c2 Kg8-f8 Ba4-b3) -0.03/24 0} 23.c4 {(c3-c4
Be7xg5 c4xd5 Bg5-f6 d5xe6 f7xe6 Ba6-c4 Kg8-f7 Rd1-e1 Rf8-e8 Ra1-d1 Rc7-d7
Re1-e4 Rd7-d6 Bc4-b3 a7-a5 Kg1-g2 Kf7-f8 a2-a3 b4xa3 b2xa3 Kf8-f7 Bb3-a2
c6-c5 d4-d5 e6xd5 Rd1xd5 Re8xe4 Rd5-d4+ Kf7-e7) +0.35/23 0} 23...Nf6 {
(Nd5-f6 c4-c5 Rc7-d7 Ba6-e2 Rf8-d8 Bg5-e3 Nf6-d5 Be2-f3 a7-a5 Kg1-f1
Rd7-b7 Kf1-e2 f7-f5 Bf3xd5 Rd8xd5 b2-b3 Be7-f6 a2-a3 b4xa3 Ra1xa3 Rb7-b5
Rd1-d2 Kg8-f7 Ra3-a4 Rb5xb3 Ra4xa5) -0.03/26 1} 24.Rd3 {(Rd1-d3 Rf8-d8
Ra1-d1) +0.37/22 2} 24...Rd8 {(Rf8-d8 Bg5-e3 Rc7-d7 Ra1-d1 Nf6-g4 Kg1-g2
Ng4xe3+ f2xe3 e6-e5 d4-d5 f7-f5 d5xc6 Rd7xd3 Rd1xd3 Rd8xd3 c6-c7 Rd3-d8
c7xd8R+ Be7xd8 e3-e4 Bd8-b6 Kg2-f3 Kg8-f7 g3-g4 f5xg4+ Kf3xg4 Bb6-d4 b2-b3
Kf7-f6 Ba6-b5 Bd4-b6 Bb5-e8 Bb6-d4 Be8-c6 Bd4-b6) 0.00/30 2} 25.Rad1 {
(Ra1-d1 Rc7-d7 c4-c5 Nf6-d5 Kg1-g2 Kg8-f8 Ba6-c4 a7-a5 Kg2-f3 Be7xg5 h4xg5
f7-f6 Rd3-d2 Kf8-f7 Bc4-b3 Rd7-a7 g5xf6 g7xf6 Rd2-e2 Rd8-h8 Rd1-e1 a5-a4
Bb3-c4 Ra7-e7 Bc4xd5 c6xd5 a2-a3 b4xa3) +0.44/23 1} 25...Rcd7 {(Rc7-d7
Bg5-e3 Nf6-g4 Kg1-g2 e6-e5 d4-d5 Ng4xe3+ f2xe3 f7-f5 d5xc6 Rd7xd3 Rd1xd3
Rd8xd3 c6-c7 Rd3-d8 c7xd8R+ Be7xd8 e3-e4 Bd8-b6 e4xf5 g6xf5 Ba6-c8 g7-g6
g3-g4 f5xg4 Bc8-b7 Kg8-f7 Kg2-g3 Bb6-d4 b2-b3 Kf7-f6 Kg3xg4 Bd4-f2 Kg4-f3
Bf2xh4 c4-c5 Kf6-e7 Bb7-d5 Ke7-f6) 0.00/30 0} 26.c5 {(c4-c5 Nf6-d5 Kg1-g2)
+0.51/23 2} 26...Nd5 {(Nf6-d5 Bg5-e3 Kg8-f8 Kg1-g2 e6-e5 d4xe5 Nd5xe3+
f2xe3 Rd7xd3 Rd1xd3 Rd8xd3 Ba6xd3 Be7xc5 Kg2-f3 Bc5-b6 Kf3-e4 Bb6-c7
Bd3-e2 Kf8-e7 g3-g4 Bc7-d8 Be2-d1 Ke7-f8 Bd1-a4 Bd8xh4 Ba4xc6 Kf8-e7
Bc6-d5 f7-f6 e5-e6 Bh4-e1 Bd5-c4 Be1-d2 Bc4-b3 Bd2-c1 Ke4-d5 Bc1xb2)
-0.04/32 1} 27.Kg2 {(Kg1-g2 Kg8-f8 Kg2-f3 Be7xg5 h4xg5 Kf8-e7 Ba6-c4
Rd8-h8 a2-a3 a7-a5 Rd1-a1 Rh8-b8 b2-b3 Rd7-a7 a3-a4 Rb8-h8 Bc4xd5 c6xd5
Kf3-g2 Rh8-h5 f2-f4 Ra7-c7 Rd3-e3 Ke7-d7 Ra1-e1 Rh5-h8 Re3-e5 Rc7-c8
Kg2-f3 Rh8-h2 Re5-e2 Rh2xe2 Re1xe2) +0.36/23 0} 27...Kf8 {(Kg8-f8 Kg2-f3
Be7xg5 h4xg5 Kf8-e7 Ba6-c4 Rd8-h8 a2-a3 a7-a5 Bc4xd5 Rd7xd5 a3xb4 a5xb4
Kf3-e3 Rd5xg5 Rd1-a1 Rh8-d8 Ra1-a7+ Rd8-d7 Ra7xd7+ Ke7xd7 Rd3-b3 e6-e5
Rb3xb4 Rg5-f5 f2-f4 e5xd4+ Rb4xd4+ Kd7-c7 b2-b4 g6-g5 Rd4-e4 g5xf4+ Re4xf4
Rf5xf4 Ke3xf4 Kc7-d8 Kf4-e5 Kd8-d7 Ke5-d4 Kd7-c7 Kd4-c4 Kc7-b7) -0.19/30 3
} 28.Kf3 {(Kg2-f3 Be7xg5 h4xg5 Kf8-e7 Ba6-c4 Rd8-h8 a2-a3 a7-a5 Rd1-a1
Rh8-h5 a3xb4 Nd5xb4 Rd3-d2 Rd7-a7 Kf3-f4 Ke7-d7 b2-b3 Rh5-h3 Rd2-e2 Rh3-h8
g3-g4 Rh8-h2 Kf4-g3 Rh2-h8 Re2-b2 Rh8-a8 Kg3-f4 Nb4-d5+ Bc4xd5 e6xd5
Rb2-e2 Ra8-h8 Ra1-e1) +0.43/23 0} 28...Bxg5 {(Be7xg5 h4xg5 Kf8-e7 Ba6-c4
a7-a5 Bc4-b3 Rd8-h8 a2-a3 b4xa3 Bb3xd5 Rd7xd5 Rd3xa3 Rh8-b8 Ra3xa5 Rb8-b3+
Kf3-g2 Rb3xb2 Ra5-a7+ Rd5-d7 Ra7xd7+ Ke7xd7 Kg2-f3 Rb2-c2 Rd1-d3 e6-e5
d4xe5+ Kd7-e7 Kf3-e3 Rc2xc5 f2-f4 Rc5-c2 Rd3-b3 Ke7-e6 Rb3-b7) -0.09/26 0}
29.hxg5 {(h4xg5 Kf8-e7 Ba6-c4) +0.29/23 1} 29...Ke7 {(Kf8-e7 Ba6-c4 a7-a5
Bc4-b3 Rd8-h8 a2-a3 b4xa3 Bb3xd5 Rd7xd5 Rd3xa3 Rh8-b8 Ra3xa5 Rb8-b3+
Kf3-g2 Rb3xb2 Ra5-a7+ Rd5-d7 Ra7-a6 Rd7-d5 Ra6xc6 Rd5xg5 Rc6-c7+ Ke7-f6
Rd1-d3 Rg5-f5 Rd3-f3 Rb2-d2 Rc7-d7 Rd2-c2 g3-g4 Rf5xf3 Kg2xf3 e6-e5 d4xe5+
Kf6xe5 Rd7xf7 Rc2-c3+ Kf3-g2 Rc3xc5 Rf7xg7 Ke5-f6 Rg7-a7 Kf6-g5 Ra7-a8
Kg5xg4 f2-f3+ Kg4-f4 Ra8-f8+ Kf4-e3) -0.05/29 0} 30.Bc4 {(Ba6-c4 Rd8-h8
a2-a3 a7-a5 Rd1-a1 b4xa3 Rd3xa3 Nd5-b4 Ra3xa5 Nb4-c2 Ra1-a4 Nc2xd4+ Kf3-e4
Rh8-h1 Ra4-a1 Rh1xa1 Ra5xa1 Nd4-c2 Ra1-a4 Rd7-d4+ Ke4-f3 Rd4-d7 b2-b3
f7-f6 Ra4-a6 e6-e5 Kf3-g2 Nc2-d4 b3-b4 f6xg5 Ra6-b6 g5-g4 Rb6-b8 Nd4-c2
b4-b5 c6xb5) +0.31/24 1} 30...a5 {(a7-a5 Bc4-b3 Rd8-h8 Kf3-g2 Rd7-d8
Rd1-a1 Rh8-h5 f2-f4 Rh5-h8 a2-a3 b4xa3 Ra1xa3 Nd5-b4 Rd3-d1 Rd8-a8 Rd1-a1
Rh8-d8 Ra3xa5 Ra8xa5 Ra1xa5 Rd8xd4 Ra5-a7+ Rd4-d7 Ra7xd7+ Ke7xd7 Kg2-f3
Nb4-d3) -0.10/30 0} 31.Rh1 {(Rd1-h1 Nd5-c7 Kf3-e4) +0.51/19 0} 31...a4 {
(a5-a4 Rh1-h7 Ke7-f8 a2-a3 Kf8-e7 Kf3-g2 b4xa3 Rd3xa3 Nd5-b4 Ra3xa4 Nb4-c2
b2-b3 Nc2-e1+ Kg2-h3 Ne1-f3 Kh3-g2) 0.00/27 0} 32.Rh7 {(Rh1-h7 Ke7-f8
Rd3-d1) +0.44/20 0} 32...Kf8 {(Ke7-f8 Rh7-h4 Kf8-e7 Kf3-e4 f7-f5+ Ke4-e5
Rd8-b8 Rd3-d1 a4-a3 Rd1-b1 a3xb2 Rb1xb2 Rd7-d8 Rh4-h7 Ke7-f7 Rb2-b3 Rb8-a8
Rb3-b1 Ra8-a3 Bc4-b3 Nd5-c7 Rb1-h1 Ra3-a8 Bb3-c4 Nc7-d5) 0.00/28 0} 33.Rh4
{(Rh7-h4 Kf8-e7 Kf3-e4) +0.37/21 3} 33...Ke7 {(Kf8-e7 Kf3-e4 f7-f5+ Ke4-e5
Rd8-b8 Rh4-h1 Ke7-f7 Rd3-d1 Rb8-e8 Rh1-h7 Rd7-d8 Rd1-h1 Nd5-c7 g3-g4
Nc7-d5 Rh1-h3 Rd8-c8 Rh3-h4 Re8-d8 b2-b3 a4-a3 Bc4-a6 Rc8-b8 Ba6-c4)
0.00/31 0} 34.Ke4 {(Kf3-e4 Nd5-c7 Rh4-h7 Nc7-d5 f2-f4 f7-f5+ Ke4-f3 Ke7-f7
Rh7-h2 Nd5-c7 Rh2-d2 Rd8-h8 Rd2-d1 Rh8-d8 Rd3-d2 Nc7-d5 Rd1-h1 Kf7-e7
Rh1-h7 Ke7-f7 Bc4xd5 Rd7xd5 Kf3-e3 Kf7-g8 Rh7-h2 Kg8-f7 Rh2-h1) +0.41/22 0
} 34...f5+ {(f7-f5+ Ke4-e5 Nd5-f6 b2-b3 a4xb3 a2xb3 Nf6-g4+ Rh4xg4 Rd7-d5+
Bc4xd5 Rd8xd5+ Ke5-f4 f5xg4 Kf4xg4 e6-e5 Rd3-e3 Rd5xd4+ f2-f4 e5-e4 f4-f5
Ke7-f7 f5xg6+ Kf7xg6 Kg4-f4 Rd4-d5 Re3xe4 Rd5-f5+ Kf4-g4 Rf5xg5+ Kg4-f4
Rg5xc5 Re4xb4 Rc5-f5+ Kf4-e4 Rf5-b5 Rb4xb5 c6xb5 Ke4-d4 Kg6-f5 Kd4-c5
Kf5-g4 b3-b4 Kg4xg3) 0.00/31 1} 35.Ke5 {(Ke4-e5 Nd5-c7 f2-f3) +1.10/21 1}
35...Nf6 {(Nd5-f6 Rd3-d2 Nf6-g4+ Rh4xg4 Rd7-d5+ Bc4xd5 Rd8xd5+ Ke5-f4
e6-e5+ Kf4-f3 f5xg4+ Kf3-e4 a4-a3 b2xa3 b4xa3 Rd2-d3 Ke7-e6 Rd3xa3 Rd5xd4+
Ke4-e3 Rd4-d5 Ra3-c3 Rd5-d4) 0.00/33 0} 36.Bxe6 {(Bc4xe6 Rd7-d5+ Be6xd5)
+1.61/22 1} 36...Rd5+ {(Rd7-d5+ Ke5-f4 Nf6-h5+ Kf4-f3 Ke7xe6 Rd3-d2 Ke6-e7
Rd2-d1 Ke7-f7 Rd1-d2 Rd5xc5 d4xc5 Rd8xd2 Rh4xb4 a4-a3 b2xa3 Rd2-c2 Rb4-b8
Kf7-e6 a3-a4 Rc2xc5 Rb8-a8 Rc5-c3+ Kf3-g2 f5-f4 a4-a5 f4xg3 f2xg3 Rc3xg3+
Kg2-f2 Rg3-a3 a5-a6 Ke6-f5 a6-a7 Kf5xg5) +4.21/26 0} 37.Bxd5 {(Be6xd5
Nf6xd5) -3.81/23 1} 37...Nxd5 {(Nf6xd5 Rh4-h7 Rd8-g8 Rd3-a3 Ke7-d7 Rh7xg7+
Rg8xg7 Ra3xa4 Rg7-e7+) +M5/72 1} 38.Rh7 {(Rh4-h7 Rd8-g8 Rd3-a3 Ke7-d7
Rh7xg7+ Rg8xg7 Ra3xa4 Rg7-e7+) -M4/27 1} 38...Rg8 {(Rd8-g8 Rd3-a3 Ke7-d7
Rh7xg7+ Rg8xg7 Ra3xa4 Rg7-e7+) +M4/66 1} 39.Ra3 {(Rd3-a3 Ke7-d7 Rh7xg7+
Rg8xg7 Ra3xa4 Rg7-e7+) -M3/54 1} 39...Kd7 {(Ke7-d7 Rh7xg7+ Rg8xg7 Ra3xa4
Rg7-e7+) +M3/71 1} 40.Rxg7+ {(Rh7xg7+ Rg8xg7 Ra3xa4 Rg7-e7+) -M2/59 1
Arena Adjudication} 0-1

[/pgn]
Top
Modern Times
Posts: 3548
Joined: Thu Jun 07, 2012 11:02 pm

Re: what is wrong with Komodo Dragon 2 here?

Post by Modern Times »

Never considers that move here: (1 thread on my laptop)

Code: Select all


Engine: Dragon by Komodo Chess 2 64-bit (256 MB)
by Don Dailey, Larry Kaufman, Mark Lefler,
Found 145 WDL and 145 DTZ tablebase files (up to 5-man).
 20.00	 0:01 	-0.16--	1.Rd2 Nh5 (1.522.406) 912  TB:4
 20.00	 0:01 	-0.05++	1.b3 axb3 2.Bxb3 (1.727.331) 920  TB:8
 20.00	 0:02 	+0.07++	1.b3 axb3 2.Bxb3 (1.958.275) 916  TB:158
 20.00	 0:02 	+0.23++	1.b3 axb3 2.Bxb3 (2.149.177) 920  TB:184
 20.00	 0:02 	+0.18--	1.b3 axb3 (2.311.145) 915  TB:236
 20.00	 0:02 	+0.25++	1.b3 axb3 2.Bxb3 (2.559.886) 919  TB:236
 20.00	 0:02 	+0.15--	1.b3 axb3 (2.592.260) 918  TB:251
 20.00	 0:02 	 0.00 	1.b3 axb3 2.Bxb3 Ng4+ 3.Rxg4 Rd5+ 4.Bxd5 Rxd5+ 5.Kf4 fxg4 6.Ke4 e5 7.dxe5 Rxc5 8.Rd4 Ke6 9.Rd6+ Kf7 10.Kd4 Rc2 11.Rd7+ Ke6 12.Rd6+ Kf7 (2.646.281) 919  TB:251
 21.00	 0:03 	+0.07++	1.b3 axb3 2.Bxb3 (2.763.514) 920  TB:277
 21.01	 0:03 	+0.05--	1.b3 axb3 (2.817.692) 917  TB:282
 21.01	 0:03 	+0.08++	1.b3 axb3 2.Bxb3 (2.885.690) 917  TB:291
 21.01	 0:03 	+0.04--	1.b3 axb3 (2.915.722) 918  TB:292
 21.01	 0:03 	+0.02 	1.b3 axb3 2.Bxb3 Ng4+ 3.Rxg4 Rd5+ 4.Bxd5 Rxd5+ 5.Kf4 fxg4 6.Re3 Rxd4+ 7.Re4 Rd5 8.Rxb4 Rxc5 9.Kxg4 Ra5 10.Rb2 Kf7 11.f4 c5 12.Rb7+ Kf8 13.Rc7 Rxa2 14.Rc8+ (2.954.029) 917  TB:293
 22.01	 0:03 	+0.01 	1.b3 axb3 2.Bxb3 Ng4+ 3.Rxg4 Rd5+ 4.Bxd5 Rxd5+ 5.Kf4 fxg4 6.Re3 Rxd4+ 7.Re4 Rd5 8.Rxb4 Rxc5 9.Kxg4 Ra5 10.Rb7+ Kf8 11.Rb2 Ke7 12.f4 c5 13.Rb7+ Kf8 14.Rc7 (3.526.455) 921  TB:342
 23.01	 0:04 	 0.00 	1.b3 axb3 2.Bxb3 Ng4+ 3.Rxg4 Rd5+ 4.Bxd5 Rxd5+ 5.Kf4 fxg4 6.Re3 Rxd4+ 7.Re4 Rd5 8.Rxb4 Rxc5 9.Kxg4 Ra5 10.Rb7+ Kf8 11.Rb2 Ke7 12.f4 Ra7 13.Rc2 Kd6 14.Rd2+ (3.885.210) 922  TB:377
 24.01	 0:05 	+0.01 	1.b3 axb3 2.Bxb3 Ng4+ 3.Rxg4 Rd5+ 4.Bxd5 Rxd5+ 5.Kf4 fxg4 6.Re3 Rxd4+ 7.Re4 Rd5 8.Rxb4 Rxc5 9.Kxg4 Ra5 10.Rb7+ Kf8 11.Rc7 Rxa2 12.Rxc6 Rxf2 13.Rxe6 Kf7 14.Ra6 (4.808.720) 929  TB:872
 25.01	 0:06 	+0.01 	1.b3 axb3 2.Bxb3 Ng4+ 3.Rxg4 Rd5+ 4.Bxd5 Rxd5+ 5.Kf4 fxg4 6.Re3 Rxd4+ 7.Re4 Rd5 8.Rxb4 Rxc5 9.Kxg4 Ra5 10.Rb7+ Kf8 11.Rc7 Rxa2 12.Rxc6 Rxf2 13.Rxe6 Kf7 14.Ra6 (5.846.156) 939  TB:971
 26.01	 0:07 	+0.01 	1.b3 axb3 2.Bxb3 Ng4+ 3.Rxg4 Rd5+ 4.Bxd5 Rxd5+ 5.Kf4 fxg4 6.Re3 Rxd4+ 7.Re4 Rd5 8.Rxb4 Rxc5 9.Kxg4 Ra5 10.Rb7+ Kf8 11.Rc7 Rxa2 12.Rxc6 Rxf2 13.Rxe6 Kf7 14.Ra6 (7.127.658) 938  TB:1.317
 27.01	 0:08 	+0.02 	1.b3 axb3 2.Bxb3 Ng4+ 3.Rxg4 Rd5+ 4.Bxd5 Rxd5+ 5.Kf4 fxg4 6.Ke4 e5 7.dxe5 Rxc5 8.Rd4 Ke6 9.Rxb4 Rxe5+ 10.Kd3 Rxg5 11.Rc4 Kd5 12.a4 Rf5 13.Rxg4 Rxf2 14.Rg5+ (8.359.960) 937  TB:2.020
 28.01	 0:11 	-0.05--	1.b3 a3 (10.580.054) 936  TB:4.330
 28.01	 0:11 	-0.14--	1.b3 a3 (11.175.491) 939  TB:4.334
 28.02	 0:13 	-0.03++	1.Rd2 Ng4+ 2.Rxg4 (13.125.649) 948  TB:4.436
 28.01	 0:15 	-0.02 	1.Rd2 Ng4+ 2.Rxg4 Rd5+ 3.Bxd5 Rxd5+ 4.Kf4 e5+ 5.Ke3 fxg4 6.Rd3 Ke6 7.Ke4 a3 8.bxa3 bxa3 9.Rxa3 Rxd4+ 10.Ke3 Rc4 11.Ra7 Rxc5 12.Rxg7 Kf5 13.a4 Rc3+ 14.Kd2 (15.019.266) 950  TB:4.854
 29.01	 0:18 	-0.02 	1.Rd2 Ng4+ 2.Rxg4 Rd5+ 3.Bxd5 Rxd5+ 4.Kf4 e5+ 5.Ke3 fxg4 6.Rd3 Ke6 7.Ke4 a3 8.bxa3 bxa3 9.Rxa3 Rxd4+ 10.Ke3 Rc4 11.Ra7 Rxc5 12.Rxg7 Kf5 13.a4 Rc3+ 14.Kd2 (17.522.625) 944  TB:5.293
 30.01	 0:22 	-0.02 	1.Rd2 Ng4+ 2.Rxg4 Rd5+ 3.Bxd5 Rxd5+ 4.Kf4 e5+ 5.Ke3 fxg4 6.Rd3 Ke6 7.Ke4 a3 8.bxa3 bxa3 9.Rxa3 Rxd4+ 10.Ke3 Rc4 11.Ra7 Rxc5 12.Rxg7 Kf5 13.a4 Kxg5 14.Rc7 (21.533.525) 947  TB:6.689
 31.01	 0:25 	-0.02 	1.Rd2 Ng4+ 2.Rxg4 Rd5+ 3.Bxd5 Rxd5+ 4.Kf4 e5+ 5.Ke3 fxg4 6.Rd3 Ke6 7.Ke4 a3 8.bxa3 bxa3 9.Rxa3 Rxd4+ 10.Ke3 Rc4 11.Ra7 Rxc5 12.Rxg7 Kf5 13.a4 Kxg5 14.Rc7 (24.551.662) 951  TB:7.227
 32.01	 0:29 	-0.02 	1.Rd2 Ng4+ 2.Rxg4 Rd5+ 3.Bxd5 Rxd5+ 4.Kf4 e5+ 5.Ke3 fxg4 6.Rd3 Ke6 7.Ke4 a3 8.bxa3 bxa3 9.Rxa3 Rxd4+ 10.Ke3 Rc4 11.Ra7 Rxc5 12.Rxg7 Kf5 13.a4 Kxg5 14.Rc7 (27.871.154) 944  TB:7.467
 33.01	 0:37 	-0.01 	1.Rd2 Ng4+ 2.Rxg4 Rd5+ 3.Bxd5 Rxd5+ 4.Kf4 e5+ 5.Ke3 fxg4 6.Rd3 Ke6 7.Ke4 a3 8.bxa3 bxa3 9.Rxa3 Rxd4+ 10.Ke3 Rc4 11.Ra7 Rxc5 12.Rxg7 Kf5 13.Rc7 Kxg5 14.a4 (36.139.160) 955  TB:13.067
 34.01	 0:47 	-0.01 	1.Rd2 Ng4+ 2.Rxg4 Rd5+ 3.Bxd5 Rxd5+ 4.Kf4 e5+ 5.Ke3 fxg4 6.Rd3 Ke6 7.Ke4 a3 8.bxa3 bxa3 9.Rxa3 Rxd4+ 10.Ke3 Rc4 11.Ra7 Rxc5 12.Rxg7 Kf5 13.Rc7 Kxg5 14.a4 (45.442.561) 954  TB:18.610
 35.01	 0:57 	-0.01 	1.Rd2 Ng4+ 2.Rxg4 Rd5+ 3.Bxd5 Rxd5+ 4.Kf4 e5+ 5.Ke3 fxg4 6.Rd3 Ke6 7.Ke4 a3 8.bxa3 bxa3 9.Rxa3 Rxd4+ 10.Ke3 Rc4 11.Ra7 Rxc5 12.Rxg7 Kf5 13.Rc7 Kxg5 14.a4 (55.594.289) 962  TB:23.363
 36.01	 1:09 	-0.01 	1.Rd2 Ng4+ 2.Rxg4 Rd5+ 3.Bxd5 Rxd5+ 4.Kf4 e5+ 5.Ke3 fxg4 6.Rd3 Ke6 7.Ke4 a3 8.bxa3 bxa3 9.Rxa3 Rxd4+ 10.Ke3 Rc4 11.Ra7 Rxc5 12.Rxg7 Kf5 13.Rc7 Kxg5 14.a4 (68.098.990) 977  TB:34.857
 37.01	 1:26 	-0.01 	1.Rd2 Ng4+ 2.Rxg4 Rd5+ 3.Bxd5 Rxd5+ 4.Kf4 e5+ 5.Ke3 fxg4 6.Rd3 Ke6 7.Ke4 a3 8.bxa3 bxa3 9.Rxa3 Rxd4+ 10.Ke3 Rc4 11.Ra7 Rxc5 12.Rxg7 Kf5 13.Rc7 Kxg5 14.a4 (85.553.720) 988  TB:51.964
best move: Rd3-d2 time: 1:39.907 min  n/s: 993.379  nodes: 99.195.884 TB: 51.964
Top
lkaufman
Posts: 5960
Joined: Sun Jan 10, 2010 6:15 am
Location: Maryland USA

Re: what is wrong with Komodo Dragon 2 here?

Post by lkaufman »

frcha wrote: ↑Fri Jun 11, 2021 3:31 am
I get Qxf5 on any depth, even one ply. It's hard to fix a nonreproducible mistake. I never observe blunders like this.
Please check this position
[d]3r4/3rk1p1/2p1pnp1/2P1KpP1/ppBP3R/3R2P1/PP3P2/8 w - - 2 36

This one can be reproduced if you give 256h no multipv maybe just 1 core though you can see it briefly at 8 cores:

Komodo Dragon 2 plays Bxe6?

[pgn][Event "FritzDragonSFGauntlet 8 Cores Ponder off"]
[Site "Arena 256h 6s+1"]
[Date "2021.06.10"]
[Round "34"]
[White "KomodoDragon-2"]
[Black "Stockfish_13"]
[Result "0-1"]
[WhiteElo "3300"]
[BlackElo "3800"]
[ECO "B01"]
[Opening "Scandinavian"]
[Time "14:44:24"]
[Variation "2...Qxd5, Main Line, 6.Bc4 Bf5"]
[TimeControl "6+1"]
[Termination "adjudication"]
[PlyCount "79"]
[WhiteType "program"]
[BlackType "program"]

1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5 4.d4 Nf6 5.Nf3 c6 6.Bc4 Bf5 {(Bc8-f5 Bc1-d2
Nb8-d7 Qd1-e2 Qa5-c7 O-O-O e7-e6 Nf3-h4 Bf5-g6 Nh4xg6 h7xg6 h2-h4 Nd7-b6
Bc4-b3 Bf8-e7 Kc1-b1 O-O-O Bd2-g5 Rh8-e8 Bg5-c1 Nb6-d5 Nc3-e4 Nf6xe4
Qe2xe4 Be7-f6 c2-c3) -0.87/24 1} 7.Nh4 {(Nf3-h4 e7-e6 Nh4xf5) +0.65/19 1}
7...Bg6 {(Bf5-g6 Bc1-d2 Qa5-h5 Nh4xg6 Qh5xd1+ Ra1xd1 h7xg6 h2-h4 Nb8-d7
g2-g3 e7-e6 Bc4-d3 Bf8-e7 O-O Nd7-b6 Kg1-g2 Ra8-d8 Nc3-e2 O-O Rf1-e1
Rd8-d7 c2-c3 a7-a6 Bd2-e3 Rf8-d8 Ne2-f4 Nb6-d5 Nf4xd5 Nf6xd5) -0.53/26 0}
8.Bd2 {(Bc1-d2 Qa5-h5 Nh4xg6) +0.62/21 2} 8...Nbd7 {(Nb8-d7 Nc3-d5 Qa5-d8
Nd5xf6+ Nd7xf6 Nh4xg6 h7xg6 c2-c3 e7-e6 Qd1-f3 Ra8-c8 O-O Bf8-e7 Rf1-d1
a7-a5 g2-g3 b7-b5 Bc4-e2 Qd8-b6 a2-a4 O-O a4xb5 c6xb5 Qf3-d3 Rc8-b8 Be2-f3
Rf8-d8 Rd1-e1 Nf6-d5 h2-h4 Be7-f6 Qd3-e2 Nd5-e7 Kg1-g2 b5-b4) -0.54/28 1}
9.Nd5 {(Nc3-d5 Qa5-d8 Nd5xf6+ g7xf6 c2-c3 e7-e6 a2-a4 f6-f5 g2-g3 Bf8-g7
O-O O-O Bc4-e2 a7-a5 Be2-f3 Ra8-c8 Qd1-e2 Bg7-f6 Nh4-g2 Rf8-e8 Ra1-d1
e6-e5 d4xe5 Nd7xe5) +0.75/20 1} 9...Qd8 {(Qa5-d8 Nd5xf6+ Nd7xf6 Nh4xg6
h7xg6 c2-c3 e7-e6 Qd1-f3 Ra8-c8 O-O Bf8-e7 Rf1-d1 O-O g2-g3 Qd8-b6 a2-a4
a7-a5 b2-b3 Rf8-d8 h2-h4 Rd8-d7 Kg1-g2 Rc8-d8 Rd1-e1 c6-c5 d4xc5 Be7xc5
Bd2-g5 Bc5-e7 Re1-d1 Rd7xd1 Ra1xd1 Rd8xd1 Qf3xd1 Be7-c5 Qd1-f3 Qb6-c7
Bc4-b5) -0.57/28 0} 10.Nxf6+ {(Nd5xf6+ Nd7xf6 Nh4xg6) +0.81/19 0} 10...
Nxf6 {(Nd7xf6 Nh4xg6 h7xg6 c2-c3 e7-e6 Qd1-f3 Ra8-c8 g2-g3 Bf8-e7 O-O O-O
Rf1-d1 b7-b5 Bc4-f1 a7-a5 a2-a3 Qd8-b6 h2-h4 Rf8-d8 b2-b4 Rc8-a8 Rd1-e1
Nf6-d5 h4-h5 g6xh5 Qf3xh5 g7-g6 Qh5-e2 a5xb4 a3xb4) -0.54/27 0} 11.Nxg6 {
(Nh4xg6 h7xg6 c2-c3 Qd8-b6 Qd1-c2 e7-e6 O-O-O Qb6-a5 Qc2-d3 Qa5-f5 Qd3-e2
Bf8-d6 g2-g3 g6-g5 Bd2-e3 g5-g4 Bc4-d3 Qf5-h5 c3-c4 Qh5-h3 Qe2-c2 O-O-O
Kc1-b1 Bd6-c7 a2-a3 Qh3-h5 Rd1-e1) +0.83/20 0} 11...hxg6 {(h7xg6 c2-c3
e7-e6 Qd1-f3 Ra8-c8 a2-a4 Qd8-c7 g2-g3 Bf8-d6 Bd2-g5 c6-c5 Bc4-b5+ Ke8-f8
d4xc5 Bd6xc5 h2-h4 a7-a6 Bb5-e2 Bc5-e7 O-O Nf6-d5 c3-c4 Nd5-b4 Bg5-d2
Nb4-c6 Bd2-c3 Be7-b4 Bc3xb4+ Nc6xb4 Ra1-d1) -0.68/28 1} 12.c3 {(c2-c3
Qd8-b6 a2-a4 e7-e6 a4-a5 Qb6-c7 g2-g3 Bf8-d6 Bc4-e2 O-O Be2-f3 Ra8-e8 O-O
c6-c5 d4xc5 Bd6xc5 Bd2-g5 e6-e5 b2-b4 e5-e4 b4xc5 e4xf3) +0.75/20 0} 12...
e6 {(e7-e6 Qd1-f3 Bf8-e7 h2-h4 Ra8-c8 a2-a4 a7-a6 g2-g3 Qd8-a5 Bc4-e2
Qa5-d5 Bd2-e3 a6-a5 Be3-f4 Qd5xf3 Be2xf3 Nf6-d5 Bf4-d2 Be7-f6 Bf3-g2
Rc8-d8 O-O-O Rd8-d7 Kc1-c2 Nd5-b6 b2-b3 Nb6-d5) -0.64/28 1} 13.Qf3 {
(Qd1-f3 Bf8-e7 h2-h4) +0.98/18 0} 13...Rc8 {(Ra8-c8 a2-a4 Bf8-e7 h2-h4
a7-a6 g2-g3 Qd8-a5 Ke1-f1 Qa5-f5 Kf1-g2 Rc8-d8 Rh1-d1 Qf5xf3+ Kg2xf3 a6-a5
Bc4-f1 Rd8-d7 Rd1-e1 Nf6-d5 Bf1-c4 Nd5-b6 Bc4-b3 Nb6-d5 Kf3-g2 Rd7-d8
Re1-e2 b7-b6 Bb3-c4 Ke8-d7 Ra1-h1) -0.57/31 4} 14.g3 {(g2-g3 Bf8-e7 h2-h4)
+0.81/19 1} 14...Be7 {(Bf8-e7 O-O) -0.60/26 1} 15.h4 {(h2-h4 b7-b5 Bc4-d3
a7-a5 O-O O-O Rf1-d1 Qd8-b6 Bd2-g5 b5-b4 Kg1-g2 c6-c5 d4xc5 Be7xc5 Bg5xf6
g7xf6 h4-h5 f6-f5 h5xg6 f7xg6 Bd3-c4 b4xc3) +0.78/19 0} 15...b5 {(b7-b5
Bc4-e2 b5-b4 Be2-a6 Rc8-c7 O-O O-O Rf1-d1 b4xc3 b2xc3 Qd8-d5 Ba6-e2 Rc7-d7
Ra1-b1 Rf8-c8 a2-a4 Qd5xf3 Be2xf3 c6-c5 d4xc5 Be7xc5 a4-a5 Rc8-d8 Bd2-e1
Rd7xd1 Bf3xd1) -0.51/23 0} 16.Bd3 {(Bc4-d3 a7-a5 a2-a4) +0.83/18 0} 16...
b4 {(b5-b4 Bd3-a6 Rc8-c7 O-O b4xc3 b2xc3 O-O Rf1-d1 Qd8-d5 Ba6-e2 Rc7-d7
Ra1-b1 Rf8-c8 Qf3xd5 c6xd5 Be2-a6 Rc8-d8 f2-f3 Nf6-e8 a2-a4 Rd7-c7 Rb1-b3
Ne8-d6 Bd2-f4 Rc7-c6 Ba6-e2 Rc6-c8 Rd1-b1 Nd6-c4 Rb3-b7) -0.47/27 0} 17.
Ba6 {(Bd3-a6 Rc8-c7 Bd2-f4 Be7-d6 Bf4-g5 Bd6-e7 O-O O-O Rf1-d1 Nf6-d5
c3-c4 Nd5-b6 c4-c5 Nb6-d5 Bg5-e3 Nd5xe3 Qf3xe3 Qd8-d5 Ra1-c1 Be7-f6 Rc1-c4
Rf8-b8) +0.66/19 0} 17...Rc7 {(Rc8-c7 O-O O-O Rf1-d1 b4xc3 b2xc3 Qd8-d5
Ba6-e2 Rc7-b7 Bd2-c1 Rb7-d7 Kg1-g2 Qd5xf3+ Be2xf3 c6-c5 Bc1-e3 Rf8-c8
Ra1-b1 c5xd4 c3xd4 Nf6-d5 Bf3xd5 e6xd5 Rb1-b5 Rc8-c2 Rd1-d2 Rc2xd2 Be3xd2
Be7-f6 Bd2-c3) -0.29/28 1} 18.Bf4 {(Bd2-f4 Be7-d6 Bf4-g5 Bd6-e7 O-O O-O
Rf1-d1 b4xc3 b2xc3 Qd8-d5 Kg1-g2 Qd5xf3+ Kg2xf3 c6-c5 Bg5-f4 Rc7-c6 Ba6-b7
Rc6-b6 Ra1-b1 c5xd4 Rb1xb6 a7xb6 Rd1xd4 Kg8-h7 Rd4-c4 Rf8-d8 a2-a4)
+0.58/21 1} 18...Bd6 {(Be7-d6 Bf4-g5 b4xc3 b2xc3 Bd6-e7 O-O Qd8-d5 Kg1-g2
O-O Rf1-d1 c6-c5 Bg5-f4 Rc7-d7 Ba6-b5 Rd7-d8 d4xc5 Qd5xc5 c3-c4 Rd8xd1
Ra1xd1 a7-a6 Bb5xa6 Qc5-a5 Ba6-b5 Qa5xa2 Bf4-e3) -0.25/28 0} 19.Bg5 {
(Bf4-g5 Bd6-e7 O-O O-O Rf1-d1 b4xc3 b2xc3 Qd8-d5 Kg1-g2 c6-c5 Bg5-f4
Rc7-d7 Ba6-b5 Qd5xf3+ Kg2xf3 Rd7-b7 Bb5-a4 c5xd4 c3xd4 Rf8-d8 Ra1-c1
Nf6-d5 Ba4-c6 Rb7-b2 Bc6xd5 Rd8xd5 Rc1-c7 g6-g5 h4xg5 Be7xg5 Bf4xg5
Rd5xg5) +0.49/22 1} 19...Be7 {(Bd6-e7 O-O O-O Rf1-d1 b4xc3 b2xc3 Qd8-d5
Kg1-g2 c6-c5 Bg5-f4 Rc7-d7 Ba6-b5 Qd5xf3+ Kg2xf3 Rd7-b7 c3-c4 c5xd4 Bf4-e5
Nf6-d7 Be5xd4 Nd7-c5 Ra1-b1 a7-a6 Bd4xc5 Be7xc5 Bb5xa6 Rb7-a7 Rb1-b5
Ra7xa6 Rb5xc5 Ra6-a3+ Kf3-e2 Ra3xa2+ Ke2-e3 Rf8-b8 Rc5-b5 Rb8-c8 c4-c5)
-0.25/26 0} 20.O-O {(O-O b4xc3 b2xc3 Nf6-d5 Bg5-d2 O-O Ra1-d1 c6-c5 d4xc5
Be7xc5 c3-c4 Qd8-f6 Qf3xf6 Nd5xf6 Kg1-g2 Rc7-c6 Ba6-b5 Rc6-b6 Bd2-a5
Rb6-b7 Kg2-f3 Rf8-b8 a2-a4 e6-e5 Rd1-d8+ Rb8xd8 Ba5xd8) +0.63/21 0} 20...
O-O {(O-O Rf1-d1 b4xc3 b2xc3 Qd8-d5 Kg1-g2 Rf8-d8 Bg5-f4 Rc7-d7 Ra1-b1
Qd5xf3+ Kg2xf3 Nf6-d5 Bf4-d2 Be7-f6 Kf3-e2 Nd5-b6 Rb1-c1 Kg8-h8 f2-f4
Rd7-d5 Ba6-d3 Rd5-a5 Rc1-c2 Bf6-e7 Rd1-b1 Ra5-a3 Rb1-b3) -0.29/30 2} 21.
Rfd1 {(Rf1-d1 b4xc3 b2xc3 Nf6-d5 Bg5-d2 c6-c5 d4xc5 Be7xc5 Kg1-g2 Qd8-f6
Ra1-b1 Nd5-b6 c3-c4 e6-e5 Bd2-c3 Rf8-e8 Ba6-b5 Re8-e6 Rd1-d2 Kg8-h7 Bc3-a5
e5-e4 Qf3xf6 g7xf6) +0.45/22 1} 21...Qd5 {(Qd8-d5 Kg1-g2 b4xc3 b2xc3
Rf8-d8 Ba6-e2 c6-c5 d4xc5 Qd5xf3+ Be2xf3 Rc7xc5 Rd1xd8+ Be7xd8 Bg5-e3
Rc5-a5 a2-a4 Bd8-b6 Be3-d2 Ra5-c5 Ra1-b1 Rc5-a5 Rb1-b4 Kg8-f8 Rb4-c4
Kf8-e7 Bf3-c6 Nf6-e8 Bd2-c1 Ne8-d6 Bc1-a3 Ra5-f5) -0.24/30 1} 22.Qxd5 {
(Qf3xd5 Nf6xd5 c3-c4) +0.49/22 1} 22...Nxd5 {(Nf6xd5 c3-c4 Nd5-f6 c4-c5
Rc7-d7 Ba6-e2 Rf8-d8 Bg5-e3 Nf6-d5 Be2-f3 a7-a5 Rd1-c1 e6-e5 Bf3xd5 e5xd4
Bd5xc6 Rd7-c7 Be3xd4 Rd8xd4 Bc6-a4 Rc7xc5 Rc1xc5 Be7xc5 Ra1-c1 Rd4-d5
Kg1-g2 Rd5-f5 f2-f3 Rf5-e5 Rc1-c2 Kg8-f8 Ba4-b3) -0.03/24 0} 23.c4 {(c3-c4
Be7xg5 c4xd5 Bg5-f6 d5xe6 f7xe6 Ba6-c4 Kg8-f7 Rd1-e1 Rf8-e8 Ra1-d1 Rc7-d7
Re1-e4 Rd7-d6 Bc4-b3 a7-a5 Kg1-g2 Kf7-f8 a2-a3 b4xa3 b2xa3 Kf8-f7 Bb3-a2
c6-c5 d4-d5 e6xd5 Rd1xd5 Re8xe4 Rd5-d4+ Kf7-e7) +0.35/23 0} 23...Nf6 {
(Nd5-f6 c4-c5 Rc7-d7 Ba6-e2 Rf8-d8 Bg5-e3 Nf6-d5 Be2-f3 a7-a5 Kg1-f1
Rd7-b7 Kf1-e2 f7-f5 Bf3xd5 Rd8xd5 b2-b3 Be7-f6 a2-a3 b4xa3 Ra1xa3 Rb7-b5
Rd1-d2 Kg8-f7 Ra3-a4 Rb5xb3 Ra4xa5) -0.03/26 1} 24.Rd3 {(Rd1-d3 Rf8-d8
Ra1-d1) +0.37/22 2} 24...Rd8 {(Rf8-d8 Bg5-e3 Rc7-d7 Ra1-d1 Nf6-g4 Kg1-g2
Ng4xe3+ f2xe3 e6-e5 d4-d5 f7-f5 d5xc6 Rd7xd3 Rd1xd3 Rd8xd3 c6-c7 Rd3-d8
c7xd8R+ Be7xd8 e3-e4 Bd8-b6 Kg2-f3 Kg8-f7 g3-g4 f5xg4+ Kf3xg4 Bb6-d4 b2-b3
Kf7-f6 Ba6-b5 Bd4-b6 Bb5-e8 Bb6-d4 Be8-c6 Bd4-b6) 0.00/30 2} 25.Rad1 {
(Ra1-d1 Rc7-d7 c4-c5 Nf6-d5 Kg1-g2 Kg8-f8 Ba6-c4 a7-a5 Kg2-f3 Be7xg5 h4xg5
f7-f6 Rd3-d2 Kf8-f7 Bc4-b3 Rd7-a7 g5xf6 g7xf6 Rd2-e2 Rd8-h8 Rd1-e1 a5-a4
Bb3-c4 Ra7-e7 Bc4xd5 c6xd5 a2-a3 b4xa3) +0.44/23 1} 25...Rcd7 {(Rc7-d7
Bg5-e3 Nf6-g4 Kg1-g2 e6-e5 d4-d5 Ng4xe3+ f2xe3 f7-f5 d5xc6 Rd7xd3 Rd1xd3
Rd8xd3 c6-c7 Rd3-d8 c7xd8R+ Be7xd8 e3-e4 Bd8-b6 e4xf5 g6xf5 Ba6-c8 g7-g6
g3-g4 f5xg4 Bc8-b7 Kg8-f7 Kg2-g3 Bb6-d4 b2-b3 Kf7-f6 Kg3xg4 Bd4-f2 Kg4-f3
Bf2xh4 c4-c5 Kf6-e7 Bb7-d5 Ke7-f6) 0.00/30 0} 26.c5 {(c4-c5 Nf6-d5 Kg1-g2)
+0.51/23 2} 26...Nd5 {(Nf6-d5 Bg5-e3 Kg8-f8 Kg1-g2 e6-e5 d4xe5 Nd5xe3+
f2xe3 Rd7xd3 Rd1xd3 Rd8xd3 Ba6xd3 Be7xc5 Kg2-f3 Bc5-b6 Kf3-e4 Bb6-c7
Bd3-e2 Kf8-e7 g3-g4 Bc7-d8 Be2-d1 Ke7-f8 Bd1-a4 Bd8xh4 Ba4xc6 Kf8-e7
Bc6-d5 f7-f6 e5-e6 Bh4-e1 Bd5-c4 Be1-d2 Bc4-b3 Bd2-c1 Ke4-d5 Bc1xb2)
-0.04/32 1} 27.Kg2 {(Kg1-g2 Kg8-f8 Kg2-f3 Be7xg5 h4xg5 Kf8-e7 Ba6-c4
Rd8-h8 a2-a3 a7-a5 Rd1-a1 Rh8-b8 b2-b3 Rd7-a7 a3-a4 Rb8-h8 Bc4xd5 c6xd5
Kf3-g2 Rh8-h5 f2-f4 Ra7-c7 Rd3-e3 Ke7-d7 Ra1-e1 Rh5-h8 Re3-e5 Rc7-c8
Kg2-f3 Rh8-h2 Re5-e2 Rh2xe2 Re1xe2) +0.36/23 0} 27...Kf8 {(Kg8-f8 Kg2-f3
Be7xg5 h4xg5 Kf8-e7 Ba6-c4 Rd8-h8 a2-a3 a7-a5 Bc4xd5 Rd7xd5 a3xb4 a5xb4
Kf3-e3 Rd5xg5 Rd1-a1 Rh8-d8 Ra1-a7+ Rd8-d7 Ra7xd7+ Ke7xd7 Rd3-b3 e6-e5
Rb3xb4 Rg5-f5 f2-f4 e5xd4+ Rb4xd4+ Kd7-c7 b2-b4 g6-g5 Rd4-e4 g5xf4+ Re4xf4
Rf5xf4 Ke3xf4 Kc7-d8 Kf4-e5 Kd8-d7 Ke5-d4 Kd7-c7 Kd4-c4 Kc7-b7) -0.19/30 3
} 28.Kf3 {(Kg2-f3 Be7xg5 h4xg5 Kf8-e7 Ba6-c4 Rd8-h8 a2-a3 a7-a5 Rd1-a1
Rh8-h5 a3xb4 Nd5xb4 Rd3-d2 Rd7-a7 Kf3-f4 Ke7-d7 b2-b3 Rh5-h3 Rd2-e2 Rh3-h8
g3-g4 Rh8-h2 Kf4-g3 Rh2-h8 Re2-b2 Rh8-a8 Kg3-f4 Nb4-d5+ Bc4xd5 e6xd5
Rb2-e2 Ra8-h8 Ra1-e1) +0.43/23 0} 28...Bxg5 {(Be7xg5 h4xg5 Kf8-e7 Ba6-c4
a7-a5 Bc4-b3 Rd8-h8 a2-a3 b4xa3 Bb3xd5 Rd7xd5 Rd3xa3 Rh8-b8 Ra3xa5 Rb8-b3+
Kf3-g2 Rb3xb2 Ra5-a7+ Rd5-d7 Ra7xd7+ Ke7xd7 Kg2-f3 Rb2-c2 Rd1-d3 e6-e5
d4xe5+ Kd7-e7 Kf3-e3 Rc2xc5 f2-f4 Rc5-c2 Rd3-b3 Ke7-e6 Rb3-b7) -0.09/26 0}
29.hxg5 {(h4xg5 Kf8-e7 Ba6-c4) +0.29/23 1} 29...Ke7 {(Kf8-e7 Ba6-c4 a7-a5
Bc4-b3 Rd8-h8 a2-a3 b4xa3 Bb3xd5 Rd7xd5 Rd3xa3 Rh8-b8 Ra3xa5 Rb8-b3+
Kf3-g2 Rb3xb2 Ra5-a7+ Rd5-d7 Ra7-a6 Rd7-d5 Ra6xc6 Rd5xg5 Rc6-c7+ Ke7-f6
Rd1-d3 Rg5-f5 Rd3-f3 Rb2-d2 Rc7-d7 Rd2-c2 g3-g4 Rf5xf3 Kg2xf3 e6-e5 d4xe5+
Kf6xe5 Rd7xf7 Rc2-c3+ Kf3-g2 Rc3xc5 Rf7xg7 Ke5-f6 Rg7-a7 Kf6-g5 Ra7-a8
Kg5xg4 f2-f3+ Kg4-f4 Ra8-f8+ Kf4-e3) -0.05/29 0} 30.Bc4 {(Ba6-c4 Rd8-h8
a2-a3 a7-a5 Rd1-a1 b4xa3 Rd3xa3 Nd5-b4 Ra3xa5 Nb4-c2 Ra1-a4 Nc2xd4+ Kf3-e4
Rh8-h1 Ra4-a1 Rh1xa1 Ra5xa1 Nd4-c2 Ra1-a4 Rd7-d4+ Ke4-f3 Rd4-d7 b2-b3
f7-f6 Ra4-a6 e6-e5 Kf3-g2 Nc2-d4 b3-b4 f6xg5 Ra6-b6 g5-g4 Rb6-b8 Nd4-c2
b4-b5 c6xb5) +0.31/24 1} 30...a5 {(a7-a5 Bc4-b3 Rd8-h8 Kf3-g2 Rd7-d8
Rd1-a1 Rh8-h5 f2-f4 Rh5-h8 a2-a3 b4xa3 Ra1xa3 Nd5-b4 Rd3-d1 Rd8-a8 Rd1-a1
Rh8-d8 Ra3xa5 Ra8xa5 Ra1xa5 Rd8xd4 Ra5-a7+ Rd4-d7 Ra7xd7+ Ke7xd7 Kg2-f3
Nb4-d3) -0.10/30 0} 31.Rh1 {(Rd1-h1 Nd5-c7 Kf3-e4) +0.51/19 0} 31...a4 {
(a5-a4 Rh1-h7 Ke7-f8 a2-a3 Kf8-e7 Kf3-g2 b4xa3 Rd3xa3 Nd5-b4 Ra3xa4 Nb4-c2
b2-b3 Nc2-e1+ Kg2-h3 Ne1-f3 Kh3-g2) 0.00/27 0} 32.Rh7 {(Rh1-h7 Ke7-f8
Rd3-d1) +0.44/20 0} 32...Kf8 {(Ke7-f8 Rh7-h4 Kf8-e7 Kf3-e4 f7-f5+ Ke4-e5
Rd8-b8 Rd3-d1 a4-a3 Rd1-b1 a3xb2 Rb1xb2 Rd7-d8 Rh4-h7 Ke7-f7 Rb2-b3 Rb8-a8
Rb3-b1 Ra8-a3 Bc4-b3 Nd5-c7 Rb1-h1 Ra3-a8 Bb3-c4 Nc7-d5) 0.00/28 0} 33.Rh4
{(Rh7-h4 Kf8-e7 Kf3-e4) +0.37/21 3} 33...Ke7 {(Kf8-e7 Kf3-e4 f7-f5+ Ke4-e5
Rd8-b8 Rh4-h1 Ke7-f7 Rd3-d1 Rb8-e8 Rh1-h7 Rd7-d8 Rd1-h1 Nd5-c7 g3-g4
Nc7-d5 Rh1-h3 Rd8-c8 Rh3-h4 Re8-d8 b2-b3 a4-a3 Bc4-a6 Rc8-b8 Ba6-c4)
0.00/31 0} 34.Ke4 {(Kf3-e4 Nd5-c7 Rh4-h7 Nc7-d5 f2-f4 f7-f5+ Ke4-f3 Ke7-f7
Rh7-h2 Nd5-c7 Rh2-d2 Rd8-h8 Rd2-d1 Rh8-d8 Rd3-d2 Nc7-d5 Rd1-h1 Kf7-e7
Rh1-h7 Ke7-f7 Bc4xd5 Rd7xd5 Kf3-e3 Kf7-g8 Rh7-h2 Kg8-f7 Rh2-h1) +0.41/22 0
} 34...f5+ {(f7-f5+ Ke4-e5 Nd5-f6 b2-b3 a4xb3 a2xb3 Nf6-g4+ Rh4xg4 Rd7-d5+
Bc4xd5 Rd8xd5+ Ke5-f4 f5xg4 Kf4xg4 e6-e5 Rd3-e3 Rd5xd4+ f2-f4 e5-e4 f4-f5
Ke7-f7 f5xg6+ Kf7xg6 Kg4-f4 Rd4-d5 Re3xe4 Rd5-f5+ Kf4-g4 Rf5xg5+ Kg4-f4
Rg5xc5 Re4xb4 Rc5-f5+ Kf4-e4 Rf5-b5 Rb4xb5 c6xb5 Ke4-d4 Kg6-f5 Kd4-c5
Kf5-g4 b3-b4 Kg4xg3) 0.00/31 1} 35.Ke5 {(Ke4-e5 Nd5-c7 f2-f3) +1.10/21 1}
35...Nf6 {(Nd5-f6 Rd3-d2 Nf6-g4+ Rh4xg4 Rd7-d5+ Bc4xd5 Rd8xd5+ Ke5-f4
e6-e5+ Kf4-f3 f5xg4+ Kf3-e4 a4-a3 b2xa3 b4xa3 Rd2-d3 Ke7-e6 Rd3xa3 Rd5xd4+
Ke4-e3 Rd4-d5 Ra3-c3 Rd5-d4) 0.00/33 0} 36.Bxe6 {(Bc4xe6 Rd7-d5+ Be6xd5)
+1.61/22 1} 36...Rd5+ {(Rd7-d5+ Ke5-f4 Nf6-h5+ Kf4-f3 Ke7xe6 Rd3-d2 Ke6-e7
Rd2-d1 Ke7-f7 Rd1-d2 Rd5xc5 d4xc5 Rd8xd2 Rh4xb4 a4-a3 b2xa3 Rd2-c2 Rb4-b8
Kf7-e6 a3-a4 Rc2xc5 Rb8-a8 Rc5-c3+ Kf3-g2 f5-f4 a4-a5 f4xg3 f2xg3 Rc3xg3+
Kg2-f2 Rg3-a3 a5-a6 Ke6-f5 a6-a7 Kf5xg5) +4.21/26 0} 37.Bxd5 {(Be6xd5
Nf6xd5) -3.81/23 1} 37...Nxd5 {(Nf6xd5 Rh4-h7 Rd8-g8 Rd3-a3 Ke7-d7 Rh7xg7+
Rg8xg7 Ra3xa4 Rg7-e7+) +M5/72 1} 38.Rh7 {(Rh4-h7 Rd8-g8 Rd3-a3 Ke7-d7
Rh7xg7+ Rg8xg7 Ra3xa4 Rg7-e7+) -M4/27 1} 38...Rg8 {(Rd8-g8 Rd3-a3 Ke7-d7
Rh7xg7+ Rg8xg7 Ra3xa4 Rg7-e7+) +M4/66 1} 39.Ra3 {(Rd3-a3 Ke7-d7 Rh7xg7+
Rg8xg7 Ra3xa4 Rg7-e7+) -M3/54 1} 39...Kd7 {(Ke7-d7 Rh7xg7+ Rg8xg7 Ra3xa4
Rg7-e7+) +M3/71 1} 40.Rxg7+ {(Rh7xg7+ Rg8xg7 Ra3xa4 Rg7-e7+) -M2/59 1
Arena Adjudication} 0-1

[/pgn]
This is an interesting position, but not for the reason you imagine. Komodo Dragon 2 on one thread does make the mistake 36.Bxe6? up thru 18 ply, then sees the danger at 19 ply and avoids it. This is quite a brilliant combination by Black, it's not surprising to me that an engine needs 19 plies to see it in view of all the pruning and reduction, especially null move in this case. It involves a mating net with quiet rook and king moves after a sacrifice, very hard to see. But Stockfish 13 on one thread plays the same mistake all the way thru 25 ply, and wakes up at 26 ply! So the mystery is, why does Komodo see it 7 plies earlier than Stockfish? Of course the programs differ, but the reductions and prunings aren't so different as to readily account for a seven ply difference! There's probably some subtle explanation. Anyway, this is not something for Komodo to fix, 19 plies is fine to see this combination.
Komodo rules!
Top

Return to “Computer Chess Club: General Topics”