"It just isn't conceivable that you can design a program strong enough to beat players like me."

December 18, 2016

Android UCI engine update: Arasan 19.2.APE

In fact, we've already had Arasan 19.2 made available by Aprijal. This alternative version is taken from Acid Ape Chess Beta 12, thus it's a different build made from the same source.

Download Arasan 19.2.APE for all architectures: HERE

In case of trouble downloading from box, use your mobile device or refer to THIS POST.

Stockfish 8.0.20161217 OEX installers by Javiolo

Javier has just released the new versions of his Stockfish OEX installers. As usual, there are two different apps for PIE and NOPIE devices.

Since i've already answered questions several times, it seems that not everyone knows well what is pie and nopie,

I repeat again:
Users with Android up to 4.0.4: Use NOPIE 32-bit
Users with Android from 4.1 up to 4.4: Use PIE 32-bit
Users with Android from 5.0 and beyond: Use PIE 32-bit or ARM8 64-bit or X86_64

A further explanation tells:
- PIE requires API level 16 and beyond, API 16 = Android 4.1.
- API 16 to 18: NOPIE and PIE will both work.
- API level 19 and beyond don't accept NOPIE. API 21 = Lollipop 5.0

Download Stockfish OEX installer for NOPIE devices from GOOGLE PLAY.
Download Stockfish OEX installer for PIE devices from GOOGLE PLAY.

In case you want to install the binaries yourself, here are two packages with all architectures. They are taken from last two versions of the app:
Stockfish 8.0.21061217.JV (only the binaries): HERE
Stockfish 8.0.21061204.JV (only the binaries): HERE

Don't forget that if you install binaries directly, they will only appear in the GUI's from which you install them.

In case of trouble downloading from your PC, do it from your mobile device or refer to THIS POST.

Chessbase Online ft Stockfish 8

WHAT'S NEW (14-Dec-16): Stockfish 7 is updated to 8.

I wish i could see Deep Fritz 15 too but no luck.

Download latest version from GOOGLE PLAY.

CEPA 0.4.8 by Javiolo

The engine tournament feature? Not yet implemented but it would be a big improvement.

WHAT'S NEW (04-Dec-16):

- Time per game (rapid) to probe not free
- Install SF app option
- forgot, Removed evaluate

Download latest version from GOOGLE PLAY.

Mobialia Chess Free 5.3.3

WHAT'S NEW (12-Dec-16):

- Vector icons and other small fixes
- Added icons to the sidebar
- The icons are now in vector format, improving their visualization
- Show games option as an icon in the database position stats screen
- Do not disconnect from the chess service if the system closes the online screen, this fixes some disconnection problems
- Material styles for the inputs in the main screen of the android app and for the web app

Download latest version from GOOGLE PLAY.

Acid APE Chess Beta 12

WHAT'S NEW (10-Dec-16)

Beta 12:
- Lichess support has been added
- Supports multiple simultaneous connections
- Moves can now be entered by sliding pieces
- Solved puzzles can now be played again
- Various UI evolutions
- Now compatible with Android 7
- Arasan updated to 19.2

Download latest version from GOOGLE PLAY.

Chess Free AI 2.53

WHAT'S NEW (Updated on 05-Dec-16):

* Fixes an issue with ELO processing caused by changes in AI base ELO level. Your ELO may have changed after this update.

Download latest version from GOOGLE PLAY.

Hawk Chess 1.4.8

* Full-screen option for 3D mode.
* Miscellaneous bug fixes.

Updated on 06-Dec-16.

Dowload latest version from GOOGLE PLAY.

December 5, 2016

Too genius to be funny with only a script

This video reminded me once again why it's difficult for chess to suit the needs of mass media. Maybe that's because chess requires a creative mind and dedication while mass media needs watchers to consume what's being offered, without too many questions.

One would notice that the used script is very classical and way too limited for the first and unique world champ of the US. The show is expected to be funny but it only looks weird.

Indeed, R.J.Fischer succeeded all by himself with insane dedication to chess. I think the rise of the media pressure before and after the 1972 match was the beginning of the unbearable load for Fischer.

He could handle any difficulty in a chess game but not this.

December 4, 2016

Android UCI engine update: Cfish 2016.12.03.AP

If you still don't know what Cfish stands for, here's the simplest answer: Stockfish is written in C++ while Cfish is the same engine written in C, by Ronald de Man, the programmer of the famous Syzygy tablebases.

C is older, less user friendly for the programmer but more native, closer to the the machine. That's why converting the original Stockfish code to C code can help the compiled engine work way faster.

Cfish is expected to be 10-15 ELO higher than official Stockfish. You can measure the gap yourself or you can believe me as an easier alternative.

GET Cfish 2016.12.03 for 32-bit arm7 nopie
GET Cfish 2016.12.03 for 32-bit arm7 pie
GET Cfish 2016.12.03 for 64-bit arm8

In case of trouble downloading from box, refer to THIS POST.

Android UCI engine update: Stockfish dev't 2016.12.03.AP

If Stockfish 8.0 is not mercyless enough, please welcome a recent development version ported to Android by Aprijal Pasaribu.

Prior to uploading, i've tested the arm8 build on MTK6752 octa core cpu: 2140 knps in 60 seconds is not a record compared to previous AP builds but it proves at least the compile is healthy. So, it should be the closest engine to perfect chess at present.

I hear you mentioning Cfish?

Ok, ok... In fact Cfish is Stockfish too. It's in the queue thanks to Aprijal.

GET Stockfish dev't 2016.12.03 for 32-bit arm7 nopie
GET Stockfish dev't 2016.12.03 for 32-bit arm7 pie
GET Stockfish dev't 2016.12.03 for 64-bit arm8

In case of trouble downloading from box, refer to THIS POST.

December 3, 2016

Android UCI engine update: Bobcat 8.0.AP

It was surely a nice idea to port the latest version of Bobcat to Android, taking into account that this engine written by Harm Gunnar is close to 3000 ELO barrier and we were stuck on v6.4 since a long time.

I guess v8.0 will heat up more the top engines zone of Android.

GET Bobcat 8.0 for 32-bit arm7 nopie
GET Bobcat 8.0 for 32-bit arm7 pie
GET Bobcat 8.0 for 32-bit arm8

In case of trouble downloading from box, refer to THIS POST.

Android XB engine update: Crafty 25.2.AP

Bob Hyatt's Crafty must be older than most chess enthousiasts around the world. This Xboard engine still carries on DNA's from Cray Blitz, the monster chess computer of 70's!

We had seen several builds of Crafty for Android but none of them could use a configuration file, something that throws away a lot of strength.

In constrast to the previous versions ported to Android by Jim Ablett, v25.2 ported by Aprijal can run multi threads and beyond this, it becomes possible to increase the hash size according to our needs. In previous versions, the hash size was previously fixed to 32MB default as far as i remember.

Now, would it be too imaginary to write an equation like Hash + SMP + preformance build by AP =  +150 ELO? We'll see about it.

GET Crafty 25.2 AP arm7 & arm8

Notice: Don't forget to edit first the .craftyrc config file provided within the 7z package and then install it as an engine under Chess for Android GUI. 

In case of trouble downloading from box, refer to THIS POST.

Android UCI engine update: Robbolito 0.085g3l.AP

Robbolito is one of the strongest single core engines in Rapidroid, reaching almost 3000 ELO on a mobile phone.

Even if the code itself may not be a huge improvement over 0.085e4l, Aprijal Pasaribu's build is expected to add some more flavour.

The reason i'm saying this is the architecture which is upgraded from arm5 to arm7 (or 8) in a performance addicted way. Thanks Aprijal.

GET Robbolito 0.085g3l.AP for arm7 nopie
GET Robbolito 0.085g3l.AP for arm7 pie
GET Robbolito 0.085g3l.AP for arm8

P.S.: Just corrected the links for arm7 pie and arm8. They were going to Ivanhoe...

In case of trouble downloading from box, refer to THIS POST.

Android UCI engine update: Ivanhoe 999945.AP

At last, an Ivanhoe build able to run multi threads. I'm very happy that such compile came in, given that the engine used to be among the strongest single core Android engines.

I imagine that with the boost provided by SMP, Ivanhoe can become a candidate for the Rapidroid TOP-10. I will rate it as soon as possible.

GET Ivanhoe 999945.AP 32 bit for arm7 nopie
GET Ivanhoe 999945.AP 32 bit for arm7 pie
GET Ivanhoe 999945.AP 32 bit for arm8

In case of trouble downloading from box, refer to THIS POST.

Android UCI engine update: Sayuri 2016.11.03 by H.Ishibashi

The latest working version of Sayuri had come from Aprijal. Meanwhile, the author of the engine Hironori Ishibashi keeps releasing his own compiles.

For the sake of the collecting mind, i'm sharing HERE the arm5 build of 2016.11.03 which didn't work on my devices, like many previous updates of this year.

In case of trouble downloading from box, refer to THIS POST.

Android UCI engine update: Firenzina 2.4.3 xTreme AP

Aprijal Pasaribu has succesfully compiled Firenzina 2.4.3 for Android. Compared to the previous version 2.4.1, SMP functionality is here once again while the build for arm7 and arm8 are way faster than arm5.

I hope Firenzina gains 10-20 ELO Rapidroid, when i can find enough time to introduce it with all these frequent engine updates. Maybe before xmas...

Don't forget to install fire.cfg in the same folder as the engine because some UCI options, especially the threads settings can only be configured via this file.

The threads setting is somehow tricky: You must increase the MIN setting to the number of cores you want to use. MAX setting defines the maximum possible value but the engine will always take the min setting. At least, that's the case with Aprijal's build.

In Chess for Android, you will see no CPU option selectable, it's normal because you set this in cfg file.

GET Firenzina 2.4.3 for 32-bit arm7 nopie
GET Firenzina 2.4.3 for 32-bit arm7 pie
GET Firenzina 2.4.3 for 62-bit arm8

In case of trouble downloading from box, refer to THIS POST.

Mobialia Chess Free 5.3.2

The last version 5.3 of Mobilia integretes many improvements. It's one of the most popular chess apps. I wish we could have Caraballo chess engine used by Mobilia, as a standalone UCI binary but there's very little probability for this to happen.

Database is out of beta:
- Removed the 100 game limit in the database results
- Fabio Baiocco updated the italian localization
- The strings in the settings and the menus are now uncapitalized
- Design changes in the sidebar
- Removed the player name length limit in the board
- The 3d theme is now separated from the 2d theme
- Problems were starting in the number #2, not in the #1
- Design changes in the web app at http://chess.mobialia.com to match the android app

Download latest Mobilia Chess Free from GOOGLE PLAY.

Senior Chess 1.89

I think adding time controls to this beatiful app would make it much more attractive.

Version 1.89: Thanks to some new checks, it is no longer possible to introduce certain illegal positions, such as those with, for example, nine white pawns. In previous versions, if you created such positions in edit mode, you could switch to play mode and make the program crash. The same checks are now applied to positions read from .fen files. In addition, there will no longer be crashes after an exit by means of the Back key, followed by a restart.

Download last version of Senior Chess from GOOGLE PLAY.

Android UCI engine update: Arasan 19.2.AP

This one should be definitely better than 19.1 given the code is improved by Jon Dart and the builds are prepared by Aprijal Pasaribu using the same tools.

You may expect 3000+ ELO on a regular 4 cores device...

GET Arasan 19.2 for 32-bit arm7 pie
GET Arasan 19.2 for 64-bit arm8

In case of difficulties downloading from box, refer to THIS POST.

Stockfish 8: No PIE builds installer by Javiolo

Glad i'm back again from busy working days, at least for the weekend.

On a previous post dated Nov,2nd, i'd written about the OEX installer app by Javiolo coming with Stockfish 8 builds.

That app included only the PIE builds, therefore users of Android prior to 4.1 could not use them.

As the alternative app from the same developer comes with noPIE builds, now the whole Android range is covered.

You may install Stockfish 8 OEX installer from GOOGLE PLAY.

In case you need the standalone engine binaries, choose below:
GET Stockfish 8.0.JV for 32-bit arm5 nopie
GET Stockfish 8.0.JV for 32-bit arm7 nopie
GET Stockfish 8.0.JV for 32-bit x86 nopie

In case of difficulties downloading from box, refer to THIS POST.

November 18, 2016

Download problems with Box: Boxed Bugs for Bucks?

Yes indeed, i've just seen the same download problem on my on PC. Cliclking on the Download button does nothing at all!

Some web topics say it's because of bandwidth limit exceeded, some others are not even seriously answered by the help desk.

Finally i've tried below alternative method with success in Chrome Browser:
1) Copy the link
2) Open an new incognito tab (A regular tab may not work!)
3) Paste the link
4) Manually change "app.box.com...." address to "m.app.box.com...."

The trick is to simulate a mobile browser. As some blog visitors had reported they've got the same problem on PC but not on their smartphones, there should be something related to the O/S. Why it works on Android and not on Windows remains a mystery. I'm boxed...

Android UCI engine update: Chiron 3

Although it shows up as an update to the engine, i've noticed the version number remains the same. The what's new notice is also the same as the previous update.

* Improved parallel search
* Fixed a bug that could make Chiron stall

Download Chiron for Android on GOOGLE PLAY.

Chess Free AI 2.52

I doubt that the second item might be the main reason of the update. Thus i'd rather read it like: "Ad delivery improvements".

* Further minor fix to new book
* Ad stability improvements

Download latest Chess Free AI version on GOOGLE PLAY.

Houdini 5 for Android on the horizon according to Robert Houdart

We really need to make him release H5 for Android before he vanishes again for another three years.

Frankly speaking, who knows how long the magician will be around after TCEC-9 Superfinal, in case H5 can't resist enough against Stockfish 8?

What's another month of wait?

The current standing at TCEC predicts that Stockfish is close to grab the crown back again according to the bad score of Houdini: +1 =18 -6 after 25 games out of 100 to play. The huge ELO boost over H4 couldn't yet recover the gap.

No matter what, i would be more than happy to host Houdini 5 Android in Rapidroid. If my appreciation for the unexpectedly successful comeback is not a strong reason, let me just say how tired i am of seeing the old Critter 1.6 arm5 (now even arm7 and not compatible with Lollipop) still at 3rd place behind Stockfish and Komodo. We need a magician in Android arena!

Follow TCEC-9 Superfinal live on Chessdom.com HERE.

November 14, 2016

Android UCI engine update: Komodo 10.2

The Komodo team finally released the Android port of Komodo 10.2 on GOOGLE PLAY. I'm surprised to see how delayed the porting has been this time following the Windows release.

No matter what, Android users must be happy to receive the most recent version, though there seems to be little to add in terms of ELO strength over Komodo 10. 

Android UCI engine update: Stockfish Matefinder 8 AP

Matefinder is another Stockfish fork maintained by Joseph Ellis. It's dedicated to solve puzzles. The latest version v8, like other forks Brainfish and CFish. I suppose that's because it's based on Stockfish 8.

GET Stockfish Matefinder 8 for all builds

Android UCI engine update: CFish 8 AP

Stockfish official code is written in C++. If you rewrite it using C, you simply get closer to the processor level for extra speed but you sacrifice portability of the code among systems and you face more difficulty in translating the existing. It's kind of a downgrade for a programmer but if it makes your engine run faster, why not?

C++ is much more ergonomic and modern by definition but chess programmers always prefer speed. So CFish is a good idea.

After the release of Stockfish 8, CFish followed the official branch and thanks to Aprijal, we have an Android port of CFish. I can speak about 20% more kNps on my MTK6752 processor compared to SF8. It's by far the fastest Stockfish i've ever had!

GET CFish 8 AP for all builds

Previous versions i forgot to share last month (oops!):
GET CFish 20161017.AP for 32-bit arm7 pie
GET CFish 20161017.AP for 64-bit arm8

Android UCI engine update: Stockfish 8 SE AP

Stockfish SE is a special edition of the engine forked by Michael Byrne. It incorporating some additions to the standard code. I've seen tests around stating that SSE can achieve higher ELO vs official Stockfish in longer time controls. This remains to be verified.

The description of the engine by Micheal says: "A fork of the Official Stockfish, has some features and functions that are not part of the official Stockfish source. Many of these changes were derived from the Stockfish team from pulled requests which were not committed, but which were interesting to me and subsequently incorporated in this unofficial fork of Stockfish.

As one can note above, none of these changes appear to be detrimental to Stockfish playing strength. New in this update , the "study" option from SF Matefinder by Joesph Ellis was added - based on some of the posts here, many of you should enjoy this option. So when one is looking at a position you can quickly get a second opinion without reloading an engine, just check the uci menu box for "study" and you are on your way. Also added the "Clean Search" uci option from Ellis' Matefinder. The "fast play" when mate is found is now a uci option, by default it is turned on. If you want SF 8 SE to keep searching for a shorter mate, check the uci "fast play" menu box off.

And naturally, this has the other features from previous forks, including Multi-PV when using TB's (submitted by Ronald de Man), the uci menu option "throttle" to simulate a slow pc from the 90's, select elo engine strength from the uci menu, which utilizes the 40 different skill levels ( official SF has 20 skill levels) and the fast play when mate is found mentioned above.

One can check out the "study" option from the command line "setoption name Study value true" and then type bench - the bench nodes will be significantly higher. On any position , this will provide a different perspective and, sometimes, a very interesting "second opinion" - very nice work by Joseph Ellis.

GET Stockfish 8 SEE package including all available builds.

Thanks go to Aprijal Pasaribu for compiling them all. 

November 13, 2016

Android UCI engine update: Brainfish 8 AP

It's good to see Aprijal getting back to Android builds after a busy period. I was not quick enough to share in time what he did last week but being late doesn't impact my queue and here i go!

The first release to mention is Brainfish 8 based on Stockfish 8. Aprijal's previous build was extremely voluminous in file size because it included the book. It worked okay for me as far as i could test and the engine played book moves regardless of the GUI settings.

However, i see that this time there's a separate book file to download and use with the engine. It's the default procedure used by some of the Android engines but not all of them can do this without problem even though they are supposed to do so under Android.

I've already heard about Brainfish 8 being unable to read the book when run with Chess for Android. I didn't test it myself, so i leave this to you. After all, Brainfish without book would be the same thing as standard Stockfish.

If you manage to make Brainfish use Cerebellum book with Chess for Android, just let me know.

GET Brainfish 8 AP all builds (1.9MB 7z compressed)
GET Cerebellum Light (The book: 23MB 7z compressed)

Stockfish 8 OEX installer for Android below 4.1

Before i forget, i must notify about Javier Fernandez' alternative Stockfish installer specially packed for users of Android versions below 4.1.

The initial release of the app was dedicated to newer devices working with PIE (Position Independent Executables) without problem. It seems that Javier preferred to pack all NOPIE builds in a separate app, which is quite logical.

Users of Android 4.0.X or older can download the package from GOOGLE PLAY to taste the eighth fish.

Mobialia 5.3

Mobialia is a standalone chess app for Android and it uses Alonso Ruibal's Carballo chess engine. Carballo is not among the top engines as you can see in CCRL rankings but its latest versions came way stronger than before. 
On the other hand, the best part of Mobialia for me are the nice graphics, especially the 3D presentation of the chess board. The app is free without limitations but there's also a paid one without ads.

After a quite long silence, now we have the 5.3 version with below mentioned improvements.

* New database feature allowing to search for games or positions
* New sidebar in the main screen including the database section
* New option "Search Position in DB" in the board screens
* Fix a bug picking a piece that is going to be captured
* Many optimizations in the 3D library
* Some improvements in the PGN parser
* Fix some layouts for small screens
* Updated the chess engine to Carballo 1.7

Download Mobialia from GOOGLE PLAY.

Senior Chess 1.86

Since the last time i'd posted about Senior Chess, two updates were released. You can download the latest version from GOOGLE PLAY.

Version 1.86: Some bugs have been fixed.
Version 1.85: I found out that version 1.84 did not work for Android 4.3. This problem has been fixed.

Chess for Android 5.2.5 with new Modern and Russian piece sets

The new Modern and Russian sets will remind to most users the mobile version of Richard Lang's ChessGenius. It's not a coincidence because they are designed by Bryan Whitby, the same artist.

A notice from Bryan explains: "I initially designed both sets for Richard Lang's ChessGenius handheld computers. Richard still uses my original Modern set whilst Aart will use a slightly updated version. The Russian pieces were designed as an additional set for a recent ChessGenius update only Richard's are silver & black and Aart's are Brown & Silver."

Chess for Android is indeed more attractive with these new goodies.

Download latest version of Chess for Android from GOOGLE PLAY.

November 6, 2016

Video: Why Humans will have fewer and fewer chances against Chess Computers?

A beautiful case to show us how unlikely it is for humans to find the winning move in such not very (or extremely) complex position where a modern chess engine like Stockfish knows how to crush the opponent.

Watch: HERE

If you want to see how long it takes for your engine to find Rc6!!! you may use two links below to load the position on your GUI:
1) Insert FEN string: r4rk1/1b1p2pp/1p1b3q/pP1P1p2/8/P2Q1BP1/1BR2P1P/4R1K1 w - - 0 1
2) Import PGN file: HERE

November 5, 2016

Video: How Computer Chess Changed The World?

HERE's an interesting interview with two members of Deep Blue Team.

Published on Jun 24, 2013
Not long ago, the idea of a computer beating a human at chess was the stuff of science fiction. But some of the most creative programmers of the 1980s and 90s were determined to make it a reality. And they did. In two matches that riveted the world, Deep Blue, the IBM supercomputer, took on the brilliant world chess champion Garry Kasparov, and finally the computer won. Check out WSF's fascinating discussion with computer scientist Murray Campbell, and grand master Joel Benjamin, two key members of IBM's team involved in the epic match-up between man and machine.

Subscribe to our YouTube Channel for all the latest from WSF.
Visit our Website: http://www.worldsciencefestival.com/
Like us on Facebook: https://www.facebook.com/worldscience...
Follow us on twitter: https://twitter.com/WorldSciFest

PARTICIPANTS: Joel Benjamin, Murray Campbell
Original program date: June 1, 2013

Participant introductions. 00:04
When did you meet Deep Blue? 1:05
What were the origins of computer chess? 2:39
The prediction that computer will never win? 5:16
How did you get involved with playing against Deep Blue? 7:41
What was the public's reaction to this technology? 12:30
Did the Deep Blue team have you in mind? 16:55
Why did he quit the game? 21:46
Moving technology to Jeopardy. 24:00
Can a computer figure out protein folding? 25:44

Video: How do modern chess engines work?

Note that this video is not new at all but anything explained here is valid today as well. Presented by Daylen Lang, one of the maintainers of Stockfish website, this briefing explains what are the basics of developing a modern chess engine.

If you never ever watched THIS, you must do so now. 56 minutes, be a god boy, be patient...

Senior Chess 1.84

WHAT'S NEW: Since 16 September the opening book did not work properly. This has been fixed in this version.

Download latest version of Senior Chess for Google Play: HERE

Chess Free AI 2.512

This update fixes a very rare bug in new book look-up.

Download Chess Free AI from Google Play: HERE

Android UCI engine update: Stockfish 8.0 official

Stockfish team hadn't submit an official release of Stockfish 7 but they did this for 8th version. Now chess addicted fishers can download an Android build from www.stockfishchess.org or from my repository using below links.

It's unknown to me who prepared these two builds but one thing remains to remember: Aprijal's builds are running significantly faster than the official ones.
Additional info: Shortly after publishing this post, it's been confirmed that official builds are taken from Droidfish 1.63. Now we know Peter Österlund compiled these.

GET Stockfish 8.0 official for 32-bit arm7 pie
GET Stockfish 8.0 official for 64-bit arm8

November 2, 2016

Android UCI engine update: Stockfish 8.0

Stockfish team has already released Stockfish 8.0 before the Superfinal of TCEC-9 where the fish will have to deal with an old rival coming back to the scene after years of silence. Houdini's return attracts much more attention than Komodo nowadays.

Indeed it's surprising to see such release before the community meets the new TCEC champion but it's not surprising to see many Android builds from all active compilers, coming so quickly. So, there's already a big variety of builds available and at least one should meet the configuration of your device.

Released by Javier:
GET Stockfish 8.0.20161101.JV 32-bit for arm5 pie
GET Stockfish 8.0.20161101.JV 32-bit for arm7 pie
GET Stockfish 8.0.20161101.JV 64-bit for arm8
GET Stockfish 8.0.20161101.JV 32-bit for x86 pie
GET Stockfish 8.0.20161101.JV 64-bit for x64_64

Released by Peter Österlund:
GET Stockfish 8.0.DF163 32-bit for arm5 nopie
GET Stockfish 8.0.DF163 32-bit for arm5 pie
GET Stockfish 8.0.DF163 32-bit for arm7 nopie
GET Stockfish 8.0.DF163 32-bit for arm7 pie
GET Stockfish 8.0.DF163 64-bit for arm8
GET Stockfish 8.0.DF163 32-bit for x86 nopie
GET Stockfish 8.0.DF163 32-bit for x86 pie
GET Stockfish 8.0.DF163 64-bit for x86_64

Released by Aprijal Pasaribu:
GET Stockfish 8.0.AP 32-bit for arm5 nopie
GET Stockfish 8.0.AP 32-bit for arm5 pie
GET Stockfish 8.0.AP 32-bit for arm7 nopie
GET Stockfish 8.0.AP 32-bit for arm7 pie
GET Stockfish 8.0.AP 64-bit for arm8
GET Stockfish 8.0.AP 32-bit for x86 nopie
GET Stockfish 8.0.AP 32-bit for x86 pie
GET Stockfish 8.0.AP 64-bit for x86_64

Stockfish Chess Engine as OEX installer by Javiolo

If you remember CEPA (for Chess Engines Paly & Analysis), you already know about Javier. He's regularly updating this beautiful GUI and each version is bundled by his own compiles of latest Stockfish sources.

For those who wish to directly install Stockfish for generic access by various OEX compatible GUI's, the same author has published an app which accomplishes this task. Those with good memory will remember the same manner from Karl Schreiner's Stockfish Chess app but Javier's is coming with a variety of architectures and also with the brand new Stockfish 8!

As the app will install the engine only, the users need to make sure a compatible GUI is in place. Just follow the instructions.

GET Stockfish Chess from Google Play

Droidfish 1.63 ft Stockfish 8

Peter Österlund's new update is featuring two exciting improvements. The hash info added to the engine PV display is useful when you want to monitor and verify your hash size setting.

...and the long awaited Stockfish 8 is included to complete the Chef's Menu!

Remember that in case you see no change when you increase the hash, you can always force it by creating a blank text file named ".unsafehash" under UCI folder of Droidfish, so that the default max is ignored.

Version 1.63:
* Updated Stockfish to version 8,
* Show engine hashfull information.

GET latest Droidfish from Google Play
GET Droidfish 1.63 apk from my repository

In case of trouble downloading from your PC, use your mobile device or refer to THIS POST.

Chess Free AI 2.51

Chess Free by AI Factory Ltd is updated to v2.51. You can install the latest version of the app from Google Play: HERE

* Adds a new modern compressed opening book with 515000 moves for upper difficulty levels, 700 times bigger than the old book. This will add much more play diversity and depth.
* Levels 6 to 11 also re-graded,
* Levels 1 and 2 weakened, in response to user requests.

October 31, 2016

Android UCI engine update: Texel 1.07a6

Texel has finished playing in TCEC-9 two weeks ago, at the end of the rapid stage. The same development version is now available for our Android devices.

Two different sets have been ported so far: One by the author Peter Österlund and antoher one by Aprijal Pasaribu. I can confirm that Aprijal's builds are running faster. PGO may be the reason for arm7 but this time arm8 build appears to be faster too, as seen below. The tests were conducted using Chess for Android, 256MB hash, 1 minute fixed time analysis.
PO arm7: 561 Knps on Exynos 4412 4 x 1.6Ghz

AP arm7: 664 Knps on Exynos 4412 4 x 1.6Ghz

AP arm7: 1395 Knps on MTK 6752

PO arm8: 1909 Knps on MTK 6752 8 x 1.6Ghz

AP arm8: 2014 Knps on MTK 6752 8 x 1.6Ghz

GET Texel 1.07a6.PO 32-bit for arm7 nopie
GET Texel 1.07a6.AP 32-bit for arm7 pie
GET Texel 1.07a6.PO 64-bit for arm8
GET Texel 1.07a6.AP 64-bit for arm8