The New Fritz11 insanely Strong!

[Dr.Ex]

The new Fritz is not a Fritz This engine lost it's style. It plays more like Rybka's, Fruit's etc. F11 engine has nothing to do with older versions.

The engine is greatly improved for analysis though.

[d]rnbqkb1r/ppp2ppp/3p1n2/4P3/4P3/2N5/PPP2PPP/R1BQKBNR b KQkq - 0 4

For example it doesn't suggest the nonsense move 4...Nfd7 here like older versions did.

[Dann Corbit]

The new Fritz is not a Fritz This engine lost it's style. It plays more like Rybka's, Fruit's etc. F11 engine has nothing to do with older versions.

The engine is greatly improved for analysis though.

[d]rnbqkb1r/ppp2ppp/3p1n2/4P3/4P3/2N5/PPP2PPP/R1BQKBNR b KQkq - 0 4

For example it doesn't suggest the nonsense move 4...Nfd7 here like older versions did.

I guess that there is some famous known problem with Nfd7. I see that dxe5 gets nearly 100% of the play, but the few games that were played seemed to come out OK for the knight movers:

Code: Select all

[Event "Engine Games"]
[Site "Internet INT"]
[Date "2004.??.??"]
[Round "?"]
[White "Chess Tiger 15"]
[Black "Yace 0.9"]
[Result "1-0"]
[ECO "B07m"]
[Variation "Pirc: 3.Nc3 e5"]

1.d4 d6 2.e4 Nf6 3.Nc3 e5 4.dxe5 Nfd7 5.exd6 Bxd6 6.Nb5 Nf6 7.Nxd6+ cxd6 
8.f3 O-O 9.Ne2 Nc6 10.c4 Re8 11.b3 Qa5+ 12.Bd2 Qa3 13.Bc3 Ne5 14.Nf4 a5 
15.Qd2 Qc5 16.Rd1 Ra6 17.Bd4 Qa3 18.Be2 Bd7 19.O-O a4 20.b4 Rc6 21.Ra1 
Rxc4 22.Bxc4 Nxc4 23.Qf2 Be6 24.Rfc1 Rc8 25.Nxe6 fxe6 26.Qe2 b5 27.Rab1 e5
28.Rc3 exd4 29.Rxa3 Nxa3 30.Rd1 Rc2 31.Rd2 Rc1+ 32.Kf2 Nc4 33.Rc2 Rb1 34.
Rxc4 bxc4 35.Qxc4+ Kh8 36.Qxd4 a3 37.Kg3 Rb2 38.Qxd6 Rxa2 39.b5 Ng8 40.e5 
Ra1 41.e6 a2 42.Qa3 Rb1 43.Qxa2 Rxb5 44.Qa8 Re5 45.Qc8 h6 46.f4 Re4 47.Kf3
Re1 48.Kf2 Re4 49.g3 h5 50.Qe8 h4 51.Qh5+ Nh6 52.Qg6 hxg3+ 53.hxg3 Rb4 54.
e7 Rb2+ 55.Ke1 Rb8 56.g4 1-0

[Event "Engine Games 003 Min + X Sec"]
[Site "Internet INT"]
[Date "2004.11.29"]
[Round "?"]
[White "Deep Fritz 8.0 256MB Athlon 1200 MHz"]
[Black "Deep Fritz 8.0 256MB Athlon 1200 MHz"]
[Result "1-0"]
[WhiteElo "2781"]
[BlackElo "2781"]
[ECO "B07m"]
[Variation "Pirc: 3.Nc3 e5"]

1.e4 d6 2.d4 Nf6 3.Nc3 e5 4.dxe5 Nfd7 5.exd6 Bxd6 6.Be3 O-O 7.Qd2 Qe7 8.
O-O-O Nf6 9.Bg5 Qe6 10.Bd3 Ng4 11.Nf3 Nc6 12.h3 Nge5 13.Nxe5 Nxe5 14.Be2 
Bc5 15.Nd5 Nc6 16.f3 Bd6 17.Bc4 Qg6 18.h4 h5 19.Bf4 Bxf4 20.Qxf4 Rb8 21.
Nxc7 b5 22.Bd3 Nb4 23.Nd5 Nxd3+ 24.Rxd3 Rb7 25.Qg5 Qxg5+ 26.hxg5 Be6 27.
Rxh5 Bxd5 28.Rxd5 Rc8 29.g3 Re8 30.Rd2 Rb6 31.c3 a5 32.Kc2 a4 33.f4 Rbb8 
34.f5 g6 35.Rh6 gxf5 36.exf5 Re5 37.Rdh2 Rxf5 38.Rh8+ 1-0

[Event "Engine Games 030 Min + X Sec"]
[Site "Internet INT"]
[Date "2004.??.??"]
[Round "?"]
[White "List 5.12"]
[Black "Patriot 0.1.7 light"]
[Result "1-0"]
[ECO "B07m"]
[Variation "Pirc: 3.Nc3 e5"]

1.e4 d6 2.d4 Nf6 3.Nc3 e5 4.dxe5 Nfd7 5.exd6 Bxd6 6.Nf3 Nc6 7.Bg5 f6 8.Be3
Nde5 9.Nxe5 Bxe5 10.Qxd8+ Nxd8 11.O-O-O Bxc3 12.bxc3 Be6 13.Kb1 O-O 14.Bd3
Nc6 15.Rhe1 b6 16.f4 Rad8 17.h3 Na5 18.f5 Bf7 19.g4 Nc4 20.Bf4 Ne5 21.g5 
Bh5 22.gxf6 Bxd1 23.fxg7 Rfe8 24.Rxd1 Kxg7 25.Rg1+ Kf8 26.Bh6+ Kf7 27.Rg7+
Kf6 28.Rxc7 Rd7 29.Rxd7 Nxd7 30.Be3 Rg8 31.Bb5 Ne5 32.Bf2 Nf3 33.Bd4+ Ne5 
34.c4 Rd8 35.c3 Rg8 36.Bc6 Rg3 37.h4 Rh3 38.Bd5 Rxh4 39.c5 bxc5 40.Bxc5 a6
41.Bb6 Rh1+ 42.Kc2 h5 43.Bd8+ Kg7 44.c4 Rh2+ 45.Kb3 Rh1 46.c5 Rc1 47.Be7 
h4 48.Bxh4 Rxc5 49.Be7 Rb5+ 50.Kc3 Ng4 51.a4 Rb8 52.Bd6 Rc8+ 53.Kd4 Kf6 
54.Bf4 Rd8 55.Kc5 Ne5 56.Bg3 Rc8+ 57.Kb6 Nd3 58.Bc7 a5 59.Be6 Ra8 60.Kb5 
Kg5 61.Bd5 Rc8 62.Bxa5 Rc5+ 63.Ka6 Rc8 64.Kb7 Rc2 65.Bd8+ Kf4 66.Be7 Ne5 
67.Bd6 Rb2+ 68.Ka7 Rh2 69.f6 Rh7+ 70.f7 Rh8 71.f8=Q+ Rxf8 72.Bxf8 Ke3 73.
a5 Nd7 74.Ba3 Ne5 75.a6 Kf3 76.Kb7 Ng4 77.a7 Ke2 78.a8=Q Kd2 79.Qa5+ Ke2 
80.Bc4+ Kf3 81.Bd6 Nf2 82.Qg5 Nd3 83.Bxd3 Kf2 84.Qg3# 1-0

[Event "Engine Games"]
[Site "Internet INT"]
[Date "1999.08.31"]
[Round "?"]
[White "Anmon 5"]
[Black "Gromit 3.11.9 256MB Athlon 1200 MHz"]
[Result "1-0"]
[BlackElo "2608"]
[ECO "B07m"]
[Variation "Pirc: 3.Nc3 e5"]

1.e4 d6 2.d4 Nf6 3.Nc3 e5 4.dxe5 Nfd7 5.exd6 Bxd6 6.Nb5 O-O 7.Nxd6 cxd6 8.
Qxd6 Re8 9.Bd3 Re6 10.Qa3 Nc6 11.Nf3 Nde5 12.Nxe5 Nxe5 13.O-O Qc7 14.Bd2 
Ng4 15.g3 Qd8 16.Rad1 a5 17.Bf4 Qb6 18.c4 Qc6 19.Qc3 Re8 20.Rd2 Nf6 21.Re1
Bg4 22.Be5 Nh5 23.Bd4 Bf3 24.e5 Bh1 25.Bf1 a4 26.Re3 Be4 27.Be2 g6 28.c5 
Rac8 29.Qb4 Re7 30.Bb5 Qd5 31.Bc3 Qxa2 32.Qxe4 Rxc5 33.Qb4 Qa1+ 34.Bf1 
Rcc7 35.e6 f6 36.Rd7 Re8 37.Rxc7 b6 1-0

[Event "Computerschach 3 + X"]
[Site ""]
[Date "2005.02.07"]
[Round "?"]
[White "Chunker8 Shredder 8"]
[Black "W20 Shredder 8"]
[Result "1-0"]
[WhiteElo "2645"]
[BlackElo "2411"]
[ECO "B07m"]
[Variation "Pirc: 3.Nc3 e5"]

1.d4 d6 2.e4 Nf6 3.Nc3 e5 4.dxe5 Nfd7 5.Nf3 dxe5 6.Bc4 Be7 7.Ng5 Bxg5 8.
Qh5 O-O 9.Bxg5 Nf6 10.Qh4 Be6 11.Rd1 Nbd7 12.Bxf6 Qxf6 13.Qxf6 Nxf6 14.
Bxe6 fxe6 15.f3 Kf7 16.Ke2 Rad8 17.Rxd8 Rxd8 18.Rd1 Rxd1 19.Nxd1 g5 20.b4 
Nd7 21.a4 b6 22.Nb2 h5 23.Ke3 Kf6 24.c3 Ke7 25.Kd2 a6 26.Kd3 Nb8 27.Nc4 
Nd7 28.Kd2 Kf6 29.g3 Ke7 30.Kd3 Kf6 31.Ne3 Nb8 32.h3 Kg6 33.Ng2 b5 34.axb5
axb5 35.Ne1 h4 36.gxh4 gxh4 37.c4 Kg5 38.cxb5 Kf4 39.Ke2 Nd7 40.Nd3+ Kg3 
41.Nc5 Nf6 42.Nxe6 Ne8 43.Ke3 Kxh3 44.Kf2 Kh2 45.Nf8 Ng7 46.Ng6 Ne6 47.
Nxh4 Nf4 48.Nf5 Nh3+ 49.Ke3 Nf4 50.Ne7 Kg3 51.Nd5 Ne6 52.b6 cxb6 53.Nxb6 
Nd4 54.Nd5 Nxf3 55.Ne7 Nh2 56.Nf5+ Kg2 57.Ke2 Nf3 58.b5 Ng5 59.b6 Nxe4 60.
b7 Nc5 61.b8=Q Nd3 62.Qg8+ Kh2 63.Qg3+ Kh1 64.Kf1 Nf4 65.Qg1# 1-0

[Event "3m + 0s, rated"]
[Site ""]
[Date "2005.01.05"]
[Round "?"]
[White "Octapus Shredder 8"]
[Black "Antidual Shredder 8"]
[Result "1-0"]
[WhiteElo "2753"]
[BlackElo "2567"]
[ECO "B07m"]
[Variation "Pirc: 3.Nc3 e5"]

1.e4 d6 2.d4 Nf6 3.Nc3 e5 4.dxe5 Nfd7 5.Nf3 dxe5 6.Bc4 h6 7.Be3 Bb4 8.Qd3 
O-O 9.a3 Bd6 10.Nb5 Nc6 11.Nxd6 cxd6 12.Qxd6 Nf6 13.Qxd8 Rxd8 14.Rd1 Bg4 
15.Rxd8+ Rxd8 16.Bd3 Bxf3 17.gxf3 Nh5 18.h4 Nf4 19.Bxf4 exf4 20.h5 Nd4 21.
Rh3 Rd6 22.a4 Kf8 23.c3 Ne6 24.Ke2 Nc5 25.Bc2 Ra6 26.b3 Rc6 27.Bd1 Ke7 28.
Rh4 Ne6 29.Kd2 Rd6+ 30.Kc2 Rc6 31.b4 Kf6 32.Kb3 Ke5 33.Be2 Rd6 34.Kc2 Rc6 
35.Bb5 Nd4+ 36.Kb2 Nxb5 37.axb5 Rd6 38.Kb3 f5 39.exf5 Kxf5 40.Kc4 b6 41.
Rg4 Rd7 42.Rg2 Rc7+ 43.Kb3 Ke5 44.c4 Kd4 45.Rg4 Rf7 46.Rg6 Kd3 47.Re6 Rb7 
48.Re4 Kd2 49.Rxf4 Ke2 50.Rf5 Kxf2 51.Ka4 Re7 52.c5 Ke3 53.c6 Kd4 54.Rf4+ 
Kc3 55.Re4 Rf7 56.f4 Kb2 57.Re8 Kc2 58.Ka3 Kc3 59.Rd8 Re7 60.Rd1 Kc2 61.
Rd7 Re3+ 62.Ka2 Re8 63.c7 Rc8 64.f5 a6 65.bxa6 Ra8 66.b5 1-0

[Event "3m + 0s, rated"]
[Site ""]
[Date "2005.01.05"]
[Round "?"]
[White "I3adl3ishop Deep Fritz 8"]
[Black "Antidual Shredder 8"]
[Result "0-1"]
[WhiteElo "2678"]
[BlackElo "2487"]
[ECO "B07m"]
[Variation "Pirc: 3.Nc3 e5"]

1.e4 d6 2.d4 Nf6 3.Nc3 e5 4.dxe5 Nfd7 5.exd6 Bxd6 6.Be3 O-O 7.Qd2 Nc6 8.
O-O-O Qe7 9.Bf4 Nde5 10.Nd5 Qe6 11.Ne2 a5 12.Bg3 Nb4 13.Nd4 Qg4 14.Nb5 
Nxd5 15.Nxd6 cxd6 16.Qxd5 Be6 17.Qxd6 Nc6 18.Qf4 Qg6 19.h4 f6 20.h5 Qe8 
21.Bb5 Rc8 22.a4 Qf7 23.Qf3 Nb4 24.c3 Na2+ 25.Kd2 Bb3 26.Ra1 Bc4 27.Ke1 
Bxb5 28.axb5 Rfd8 29.h6 Qb3 30.Qg4 g6 31.Kf1 Kf7 32.Qe2 a4 33.e5 a3 34.Qf3
Kg8 35.Re1 axb2 36.Qxf6 Qf7 37.Qxf7+ Kxf7 38.e6+ Ke8 39.Rh4 Rd5 40.e7 Nxc3
41.Rf4 Rf5 42.Rb4 Rh5 43.Bh2 b1=Q 44.Rbxb1 Nxb1 45.Kg1 Rxb5 46.Bd6 Rc6 47.
Bf4 Rc2 48.Bd6 Nc3 49.Ra1 Rb1+ 50.Rxb1 Nxb1 51.Bb4 Nc3 52.g4 Nd5 0-1

[Event "HCL C565"]
[Site "www.playchess.de"]
[Date "2001.09.23"]
[Round "4"]
[White "dangleberries"]
[Black "icculushpb"]
[Result "1-0"]
[ECO "B07m"]
[Variation "Pirc: 3.Nc3 e5"]

1.e4 d6 2.d4 Nf6 3.Nc3 e5 4.dxe5 Nfd7 5.Bb5 Be7 6.e6 fxe6 7.Qh5+ g6 8.Qf3 
Bf6 9.Bc4 b6 10.e5 Nxe5 11.Qe2 Bb7 12.f3 Nbc6 13.Bxe6 Qe7 14.Bb3 O-O-O 15.
Bd2 Rhe8 16.Nd5 Qd7 17.Nxf6 Qf5 18.Nxe8 Rxe8 19.O-O-O Nd4 20.Qf2 Nb5 21.
Re1 g5 22.f4 h6 23.Nf3 gxf4 24.Nxe5 dxe5 25.c3 e4 26.Qxf4 Qf8 27.Qg4+ Kb8 
28.Rhf1 Qe7 29.Bxh6 Rd8 30.Bg5 Qe8 31.Bxd8 Qxd8 32.Rd1 Nd6 33.Bd5 Bc8 34.
Qf4 c6 35.Bxc6 Kc7 36.Bxe4 Bb7 37.Bxb7 Kd7 38.Rxd6+ Kc7 39.Rxd8+ Kxd8 40.
Rd1+ 1-0

Now, most of these games are blitz games so we probably can't learn anything from them.

I would be interested to know why the move is so bad, since it is not obvious to me.

[PauloSoare]

Good to know that Fritz 11 is strong, because I will
wait for Deep Fritz 11.

Paulo Soares

[ozziejoe]

I'd be interested in knowing if there is a refutation to nfd7, because it looks like an intriguing gambit that would work quite effectively in the world of people under 2000 elo. Might even work with gm's, in blitz at least

[Albert Silver]

I would be interested to know why the move is so bad, since it is not obvious to me.

1) Loses a pawn
2) Moves the knight a second time, impairing development
3) Loses a pawn

IMHO.

Albert

[Uri Blass]

The new Fritz is not a Fritz This engine lost it's style. It plays more like Rybka's, Fruit's etc. F11 engine has nothing to do with older versions.

The engine is greatly improved for analysis though.

[d]rnbqkb1r/ppp2ppp/3p1n2/4P3/4P3/2N5/PPP2PPP/R1BQKBNR b KQkq - 0 4

For example it doesn't suggest the nonsense move 4...Nfd7 here like older versions did.

This is not an improvement relative to the free version.

New game
rnbqkb1r/ppp2ppp/3p1n2/4P3/4P3/2N5/PPP2PPP/R1BQKBNR b KQkq - 0 1

Analysis by Fritz 6 Light:

1...d6xe5!
² (0.28) Depth: 1/5 00:00:00
1...d6xe5 2.Bf1-b5+ Nb8-d7
= (0.03) Depth: 1/5 00:00:00
1...d6xe5 2.Bf1-c4
= (0.12) Depth: 2/5 00:00:00
1...d6xe5 2.Qd1xd8+ Ke8xd8 3.Bf1-c4
= (0.22) Depth: 3/9 00:00:00 1kN
1...d6xe5 2.Qd1xd8+ Ke8xd8 3.Bc1-g5 Bc8-g4 4.Bg5xf6+ g7xf6
² (0.31) Depth: 4/11 00:00:00 2kN
1...d6xe5 2.Qd1xd8+ Ke8xd8 3.Bc1-g5 Bc8-g4 4.Bg5xf6+ g7xf6
² (0.31) Depth: 5/15 00:00:00 9kN
1...d6xe5 2.Qd1xd8+ Ke8xd8 3.Bc1-g5 Nb8-d7 4.Bf1-c4 Kd8-e8
² (0.50) Depth: 6/18 00:00:00 18kN
1...d6xe5 2.Qd1xd8+ Ke8xd8 3.Bc1-g5 Bf8-e7 4.0-0-0+ Nb8-d7 5.Bf1-c4 Rh8-f8
² (0.62) Depth: 7/21 00:00:00 58kN
1...d6xe5 2.Qd1xd8+ Ke8xd8 3.Bc1-g5 Bc8-e6 4.Bg5xf6+ g7xf6 5.0-0-0+ Nb8-d7 6.Bf1-b5
² (0.62) Depth: 8/26 00:00:00 199kN
1...d6xe5 2.Qd1xd8+ Ke8xd8 3.Ng1-f3 Bf8-d6 4.Bf1-c4 Rh8-f8 5.Bc1-g5 Nb8-c6
± (0.75) Depth: 9/25 00:00:00 551kN
1...d6xe5 2.Qd1xd8+ Ke8xd8 3.Ng1-f3 Bf8-d6 4.Bf1-c4 Kd8-e8 5.Bc1-g5 Bc8-g4 6.0-0-0
± (0.81) Depth: 10/26 00:00:00 1438kN
1...d6xe5 2.Qd1xd8+ Ke8xd8 3.Ng1-f3 Bf8-d6 4.Bf1-c4 Kd8-e8 5.Bc1-g5 Bc8-g4 6.Bg5xf6
± (0.78) Depth: 11/28 00:00:02 4510kN
1...d6xe5 2.Qd1xd8+ Ke8xd8 3.Ng1-f3 Bf8-d6 4.Bf1-c4 Rh8-f8 5.Bc1-g5 Bc8-g4 6.Bg5xf6+
± (0.72) Depth: 12/32 00:00:07 13371kN
1...d6xe5 2.Qd1xd8+ Ke8xd8 3.Ng1-f3 Bf8-d6 4.Bf1-c4 Rh8-f8 5.Bc1-g5 Bc8-g4 6.Bg5xf6+
± (0.87) Depth: 13/34 00:00:25 43798kN

(, 05.12.2007)

[Sylwy]

In fact Fritz lost its style, Fritz 9 and Fritz both were very aggressive looking for the King side attack at every moment of the game, but also both versions were very speculative and Rybka is a predator that wait the mistakel to punish it. In my opinion rybka has a stylepassive than Fritz, even the version 11 that is much less aggressive than the 9 and the 10 versions have a dynamic play better than Rybka. It seems that Frans has improve its evaluation funtion, Fritz know a lote more about structure pawns. I played troguh some games(Rybka 2.3.2a vs Fritz 11) in the weekend, 11 or 12 games, and I didn´t see any king side attack, I´m sure that Fritz 10 or 9 wolud had made 3 or 4 Kig side attack games. Rybka changed the world of the chess and now many programs tend to be more cautious, altough Shredder still being demolished game after game by Rybka, this no happen longer with Fritz ...something did Frans with this program that this becoming the closer rival for Rybka. I hope that Junior improve very nice the next version, we will see.

Hello !

Who can tell us which kind of style has the perfect chess ? A spectacular chess don't means necessary a good one.It's -maybe- a " chef d'oeuvre" but not a scientific disertation.

Regards,
Sylwy

[Sylwy]

The new Fritz is not a Fritz This engine lost it's style. It plays more like Rybka's, Fruit's etc. F11 engine has nothing to do with older versions.

The same happened with Shredder 11, and the same will happen to next Naum (It seems). I wonder if it will happen with next Junior and next Hiarcs, they're just copying the best, it's the age of the "Solid" chess engines (Not Passive, they still develop and do something, just not attack as much as before).

But don't worry, Vas has promised that next Rybka 3 is going to have a very different playing style (And the Rybka fans hope that he means more aggressiveness).

Clones ?????

[Karol Majewski]

The new Fritz is not a Fritz This engine lost it's style. It plays more like Rybka's, Fruit's etc. F11 engine has nothing to do with older versions.

The engine is greatly improved for analysis though.

[d]rnbqkb1r/ppp2ppp/3p1n2/4P3/4P3/2N5/PPP2PPP/R1BQKBNR b KQkq - 0 4

For example it doesn't suggest the nonsense move 4...Nfd7 here like older versions did.

Ok, but there are many positions, where only Fritz 9, 10 was able to find the best move:

example 1)

[d]r1bqkb1r/pp1n1pp1/2p1pn1p/6N1/3P4/3B1N2/PPP2PPP/R1BQK2R w KQkq - 0 8

Nxe6! (nowdays only Rybka 2.3.2a and Glaurung (?) can find it)

example 2)

[d]rnbqk2r/pp2nppp/4p3/2ppP3/3P4/P1P5/2P2PPP/R1BQKBNR w KQkq - 0 7

belive or not, but only old Fritz's could find Qg4, which I think is the very best move (I don't have Zappa and Hiarcs)

example 3)

[d]r1bqkbnr/1ppp1ppp/p1n5/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 0 4

Is there any top engine that will find Ba4? Of course both Ba4 and Bxc6 leed to equal position, but Ba4 keeps more pieces on the board, so that's why this is very best move (Old Fritz came to this conclusion)



The great thing about old Fritz's is that this engine has a 'sense of space' - so 'space adventage' is very important factor in evaluation there. Modern engines (like Rybka, Fritz 11) don't even know this factor. And I can give you many examples for this.

[Father]

Perfect chess ?

Each chess player must be evaluated in a combat, about how is his her its own style, then, across a special strategy, efective against hi, het, its, we must play against.

The "antichess" or "general stones walls", is an example, of how
we play against machines as, Shredder, Junior, Fritz, and Rybka, as example, but for many people, "antichess is not chess(mistake)"

For me, in my humbble opinion, perfect chess, is not possible in our blue Planet.

Best regards,

Pablo

Note. As Paulo I am waiting very happy to the Queen fritz 11 too. !!!!