New release Revenge 2.0

[Fabio Gobbato]

I am pleased to announce a new version of my chess engine: Revenge 2.0

There are a lot of improvements compared to Revenge 1.0:
- New and bigger neural network
- Higher depth for history pruning
- Improved history move ordering
- Improved ProbCut
- Improved reduction formula
- Added uci option SyzygyProbeDepth
- Stronger MultiPV analisys
- Speed up neural network incremental update
- Speed up neural network calculation
- Some speed optimization in search
- Added in the package the executable for ARMv7 Linux

All these changes results in about +90 elo compared to Revenge 1.0 measured in selfplay at 1:00+0.5 time control.
With the new network the engine is stronger in all phases of the game especially in the endgame.

The engine is available for Windows x86_64, Linux x86_64, Linux ARMv8 and Linux ARMv7.

It is sold at the same price as the previous version: 19.99€

For buying the engine or getting more informations visit www.revengechess.com

[Frank Quisinsky]

Hi Fabio,

90 Elo is a lot!
With 90 Elo more your engine is stronger as Fire and on place 3 ...
Maybe togehter with the last Koivisto 7.9 ... 70 Elo to Dragon and 90 Elo to Stockfish.

But much more interesting is the really nice playing style your engine produced in aggressivess and attacking style.

My congratulation.
I made my order!

Good luck with your Revenge!
For me the "Engine of the year 2021".

Best
Frank

[criko]

After 900 bullet games ... I see +89

Code: Select all

Ryzen Threadripper PRO 3995WX
cutechess cli
8moves_v3.pgn
60s + 1s
1 thread for all engines
256 MB Hash
60 concurrent games

------------------------------------------------------------------------------------------


Games        : 48980 (finished)

White Wins   : 15692 (32.0 %)
Black Wins   : 11445 (23.4 %)
Draws        : 21843 (44.6 %)
Unfinished   : 0

White Score  : 54.3 %
Black Score  : 45.7 %



     Program              Elo    +    -   Games   Score   Av.Op.  Draws

   1 Zeus 21.0          : 3795    7    7  6670    74.3 %   3558   49.9 %
   2 Stockfish 14.1     : 3780    7    7  6670    72.7 %   3559   52.7 %
   3 BrainLearn 15.1    : 3764    7    7  6820    71.5 %   3555   53.5 %
   4 ShashChess 20.1    : 3754    7    7  6820    70.4 %   3555   54.3 %
   5 Stockfish 13       : 3735    6    6  6670    67.7 %   3563   55.4 %
   6 Dragon 2.5.1       : 3726    6    6  6670    66.6 %   3563   53.4 %
   7 Fire 8.NN.MC.3     : 3611    7    7  6670    52.9 %   3572   54.8 %
   8 Slow Chess 2.8     : 3573    8    8  3820    50.2 %   3560   52.0 %
   9 Revenge 2.0        : 3573   17   17   900    49.9 %   3561   51.3 %
  10 Berserk 8 NN       : 3569    7    7  6670    47.8 %   3575   48.8 %
  11 Koivisto 7.9       : 3563    7    7  6670    47.1 %   3576   49.9 %
  12 Ethereal 13.25     : 3558    8    8  4730    47.9 %   3565   48.4 %
  13 Revenge 1.0        : 3484    7    7  6610    38.0 %   3581   40.7 %
  14 Wasp 5.00          : 3295    9    9  5320    19.9 %   3594   26.3 %
  15 Fritz 18           : 3282    8    8  6670    18.7 %   3597   23.3 %
  16 Chiron 5           : 3236   13   13  2910    17.0 %   3577   21.0 %
  17 Critter v1.6a      : 3169    9    9  6670    10.9 %   3605   15.3 %

[pohl4711]

I am pleased to announce a new version of my chess engine: Revenge 2.0

SPCC-ratinglist testrun started. Result probably next tuesday... Stay tuned!

[Rubinus]

Any advantage for version 1.0 holders?

[criko]

Any advantage for version 1.0 holders?

YES ... about 90 elo more

[Fabio Gobbato]

Any advantage for version 1.0 holders?

I'm really sorry but the price is low for the time and resources invested, so there won't be a discount.

[Frank Quisinsky]

Hi Fabio,

20 Euro for an update, one time in the year, is a strong and very good price for a commercial product.

A wish for the next release:
A rasp version for chess-computer products.

Best
Frank

[criko]

and now after 2400 games exactly 90 points!!

Code: Select all

Ryzen Threadripper PRO 3995WX
cutechess cli
8moves_v3.pgn
60s + 1s
1 thread for all engines
256 MB Hash
60 concurrent games

------------------------------------------------------------------------------------------


Games        : 50480 (finished)

White Wins   : 16155 (32.0 %)
Black Wins   : 11751 (23.3 %)
Draws        : 22574 (44.7 %)
Unfinished   : 0

White Score  : 54.4 %
Black Score  : 45.6 %



     Program              Elo    +    -   Games   Score   Av.Op.  Draws

   1 Zeus 21.0          : 3795    7    7  6770    74.4 %   3558   49.7 %
   2 Stockfish 14.1     : 3780    7    7  6770    72.8 %   3559   52.5 %
   3 BrainLearn 15.1    : 3763    7    7  6920    71.5 %   3554   53.5 %
   4 ShashChess 20.1    : 3754    6    6  6920    70.5 %   3555   54.3 %
   5 Stockfish 13       : 3735    7    7  6770    67.8 %   3562   55.2 %
   6 Dragon 2.5.1       : 3725    7    7  6770    66.7 %   3563   53.5 %
   7 Fire 8.NN.MC.3     : 3610    6    6  6770    52.9 %   3572   55.1 %
   8 Revenge 2.0        : 3574   11   11  2400    50.1 %   3560   49.7 %
   9 Slow Chess 2.8     : 3573    8    8  3920    50.2 %   3560   52.5 %
  10 Berserk 8 NN       : 3569    6    6  6770    47.9 %   3575   49.1 %
  11 Koivisto 7.9       : 3563    7    7  6770    47.1 %   3575   50.1 %
  12 Ethereal 13.25     : 3558    7    7  4830    48.0 %   3564   48.8 %
  13 Revenge 1.0        : 3484    7    7  6610    38.0 %   3581   40.7 %
  14 Wasp 5.00          : 3293    9    9  5420    19.8 %   3593   26.2 %
  15 Fritz 18           : 3282    8    8  6770    18.7 %   3596   23.4 %
  16 Chiron 5           : 3235   13   13  3010    16.9 %   3577   21.1 %
  17 Critter v1.6a      : 3167   10   10  6770    10.8 %   3604   15.2 %
  
  8 Revenge 2.0      : 3574 2400 (+605,=1193,-602), 50.1 %

ShashChess 20.1    : 160 (+  0,= 91,- 69), 28.4 %
Slow Chess 2.8     : 160 (+ 24,=120,- 16), 52.5 %
Ethereal 13.25     : 160 (+ 28,=105,- 27), 50.3 %
Chiron 5           : 160 (+122,= 37,-  1), 87.8 %
Koivisto 7.9       : 160 (+ 27,=108,- 25), 50.6 %
Critter v1.6a      : 160 (+135,= 24,-  1), 91.9 %
Fire 8.NN.MC.3     : 160 (+ 20,=116,- 24), 48.8 %
Wasp 5.00          : 160 (+115,= 42,-  3), 85.0 %
BrainLearn 15.1    : 160 (+  1,= 87,- 72), 27.8 %
Dragon 2.5.1       : 160 (+  2,= 97,- 61), 31.6 %
Stockfish 13       : 160 (+  2,= 79,- 79), 25.9 %
Stockfish 14.1     : 160 (+  0,= 69,- 91), 21.6 %
Zeus 21.0          : 160 (+  1,= 63,- 96), 20.3 %
Fritz 18           : 160 (+105,= 45,- 10), 79.7 %
Berserk 8 NN       : 160 (+ 23,=110,- 27), 48.8 %

[Damir]

I am pleased to announce a new version of my chess engine: Revenge 2.0

There are a lot of improvements compared to Revenge 1.0:
- New and bigger neural network
- Higher depth for history pruning
- Improved history move ordering
- Improved ProbCut
- Improved reduction formula
- Added uci option SyzygyProbeDepth
- Stronger MultiPV analisys
- Speed up neural network incremental update
- Speed up neural network calculation
- Some speed optimization in search
- Added in the package the executable for ARMv7 Linux

All these changes results in about +90 elo compared to Revenge 1.0 measured in selfplay at 1:00+0.5 time control.
With the new network the engine is stronger in all phases of the game especially in the endgame.

The engine is available for Windows x86_64, Linux x86_64, Linux ARMv8 and Linux ARMv7.

It is sold at the same price as the previous version: 19.99€

For buying the engine or getting more informations visit www.revengechess.com

Thanks for the new Engine Fabio. I already made a purchase.
Just testing it now on my 64 core AMD Threadripper 3990X