Latest Update: 18.08.2022
Hello Chess Friends,

As usual, I am pleased to announce that,Another new strength testing organized mainly for BN VBtw, (for anyone missed) previous Results1 / Results2

The Winner: Raubfish - Congrats to F. Werner, M. Fehler, SF Team!


TEST 1: Raubfish X48c3 SC 1CPU, 1m+1s Vs


Berserk 9 8CPU, 3m+1s +3/-2/=45 51.00%

Stockfish 12 4CPU, 2m+1s +4/-3/=43 51.00%

Stockfish 11 12CPU, 3m+1s +8/-1/=41 57.00%

Koivisto 8.13 8CPU, 3m+1s +9/-1/=40 58.00%


Some Notes:

Well, just unbelievable performance by Raubfish SC, managed to

Defeat any current strong player (under these disadvantage cond.)

Raubfish played each time with same TC: 1m+1s, via 1CPU, where

His opponents are used to play with slower TC, plus via more CPUs

The NNUE chess engines are participated via their default Evalfiles

All of the matches played in Auto232-mode, under Arena 2.0.1 GUI

Btw, Ponder OFF does not work under Fritz GUIs (in Auto232-mode)

Plus, Arena 2.0.1 seems to be better than Arena 3.5.1 (in Auto232..)

So, I picked Arena 2.0.1I GUI, where the matches worked flawlessly!

And the overall Draw-Ratio (based on 200 games) not so high: 84%

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TEST 2: Target is to see influence - 2005 vs 2022:


1 Raubfisch X48c3 SC 1CPU 196.5/200

2 Rybka 1.0 Beta 1CPU 3.5/200


Some Notes:

This test is played under Cutechess GUI (not under Arena)

The reason, not so complicated (if concurrent matches...)

Both engines are played with same Time Control: 2m+1s

Btw, Rybka 1.0b is expecting to be stronger than any GM

In other words, just imagine if MAN vs Machine Duel .. !)

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As Final Words,

All these testings played just out of curiosity and for fun...

And once more we noticed that, Raubfish SC engine is

Not so Drawish, super strong even via 1 CPU, 1m+1s

Meanwhile, here is another recent CPU testing Results

Download all played games (in PGN): Raubfish vs Others

Best,Sedat