Strength of Droidfish on Smartphone

Greetings Mobile Chess Players. Most of you are familiar with chess apps. Droidfish is a popular one. How strong is Droidfish? We know engines on desktops > 3000. Can it beat Super GMs? And what is the largest size of opening ctg it can handle? I like to have an offline openings explorer.

Bong!

I only want to analyze for some unclear position. Most of all, I want to review openings. Why not use a PC? I don't have any at moment. A minute of analysis won't drain a few percent of battery. 

Droidfish is probably 3450, if you assume desktop SF as 3500. In general when cpu is 2x faster, engines gain 50 elo.  (most smart phones are about 2x slower than desktop). No point comparing latest SF vs human. 3500 vs 2500 (2800+ at most ), it is like comparing master vs beginner.

Engines will crush top GM like 98/99 win 1-2 draw. in 100 games match.

Is 3450 an overestimate? Smartphone octa core can't compare to desktop dual core. 

Tech guys are always curious   I read Hiarcs on HTC smartphone won an open last decade.

Depends on smartphones, my Galaxy S7 Edge( 2 years old phone) has 2.5 million nodes per seconds for droidfish whereas, my 4 cores i5 has 5.5 milllion nodes per seconds. And newest iphone and newest android are already faster than old desktop. (they are about 6.5 million nodes per seconds)

I believe Droidfish is at least 2750. Hiarcs performance last decade was 2600. My second question is how large ctg files Droidfish can handle?

I use DroidFish (along with SCID On The Go and Komodo 9) on both of my phone and tablet. I usually (or often) get cramped and/or be in a disadvantageous position whenever I don't follow the arrows (analysis). You can just feel it. It's like a tsunami. At least, to me. That's how strong these little plastics are.

Where do you get that rating from? Those were engine ratings of 15 years ago. Engines improve massively, SF improved 500 elo in last 5 years. 

Yes, Hiarcs on smartphone was 2700 in 15 years ago. (  Stockfish is about 300 elo stronger than Hiarcs.)

3450 is CCRL rating on desktops. Smart phones function as cellphone and internet work station. So CPU usage is limited. Unless internet and cellular connection is turn off.

Here is my smartphone showing 2 million nodes per seconds( it was 2.5 when I got as new)

Engine strength is directly depend on speed, hash memory size, speed of storage device where hash file is stored.In smart phone NAND is fast.

There is no disadvantage of smartphone in comparision with desktop in case they were running same speed.

All my notes come from being a member of computer chess programming ( talkchess for 6 years). All are not the guess, but the proven facts.

Thanks. Would you answer the 2nd question?

Very unlikely. There is no public data where 2500 - 2800 GM played on public games/ tournment games since 15 years ago. Engine rating were based on OTB games against 2800 rated Kasparov(Kasparov 3-3 against deep junior), Kramnik(Kramnik 4-4 to Fritz Bahrain)  and other GM games. So Fritz and Hiarcs in 15 years ago were rated around 2800, based on those human rates. Today programmers already tested that Houdini 6  can beat Fritz Bahrain with 98% scores. This is the way how engine rating listing were created.

Those indirect data might not be 100% correct but there is no refutable data to say against it.

Here is my post

https://www.chess.com/forum/view/general/15-years-of-chess-engine-development-what-would-be-score-between-super-gm-vs-engines-now

Other than Naka, who among GMs are drawing with SF, Komodo and company?

Do you know the speed of that server stockfish? Afaik that SF is about 2600-2800 only. As in general rule, strength of computer depends on computing power x time. If chess.com has 100 cpu server and 1000 people are using for playing against SF or analyzing games, then you get only 0.1 cpu power only.

In common desktop 4 cores cpu,SF run between 5 million nodes per seconds to 10 million nodes. Chess.com SF is extremely slower than common desktop.

If you analyse a position with chess.com stockfish, you will get about depth 20-25 within 5 secs, but with desktop SF, the depth goes into 35+ within 5 secs.

Latest update, look at how today top programs perform against human. This guy is 2900+ blitz player, GM daniel, he horribly lose to one piece handicapped Leela. (not  OTB time control though)

https://lichess.org/@/DrDragonitsky/all

https://lichess.org/blog/XBsCBBMAACUA3CJi/gm-daniel-naroditsky-takes-on-leela-chess-zero

Actually, there is an app called "Openings Explorer" on Android that has a huge database all download for offline use. I think its around a gigabyte of storage when fully downloaded.

The apps is what I want. Thanks!

2000+ knodes Droidfish PC 2000+ knodes

same elo rating