Hello there,


As usual, I am pleased to announce that

Here is latest Simex 2's Similarity Report,

Played on my AMD Ryzen 4800H machine


What is new,

Instead of Opening.epd, Simex.epd is used,

Plus all are tested at 3sec/per pos. 1 Core etc.

E.g via ultra fast TC, such as 100ms is not much

Effective (as before...) with some of latest SF

Based engines...but if giving 3 seconds, 1 Core

Then as you may see too, the ones, which are

Based on same source, theirs similarity results

Are very close to each other..and as clear proof,

SF-PB 120624 vs SF 120634: 98.99% or as other

Good example: Cfish 030820 vs SF310720: 97.98%


Btw, a SURPRISE ) and what is going on ?)

Other new SF-based one with 97.98% in similarity e.g

Latest Killfish 280624 is highly close to SF 270624 dev.


As Final Conclusion,

Over long past years..I've tested a lot of chess engines, using

Various Calculation, Similarity tools etc. sure just for accurate

Rankings, Sim results etc. In other words, I wish to say that

It is time to stop using the Similarity tools, as main reason:

The originality is almost dead...sure if we are looking, testing

The latest Top engines..at least quite frequently, the latest

SIM results confirm this... otherwise, all my free efforts

Will be simply waste of my time...Besides, I have no much

Free time to check each engine..before starting new tours!

Even so.. I mean just in case.. each time I have to increase

The similarity rule limit at higher and higher...SORRY..

And thanks for your understanding!


To be more clear, as far as possible,

I do not plan to use anymore the similarity tools...

I am aware too that without 'similarity rule'

The next new tour cond. will be not much fair,

But on the other hand, who cares?

And here is the latest Similarity Results: 

Download Full Standings: Simex 300624's Results


Best,Sedat