Android UCI engine update: Sayuri 2016.06.29

Although all builds following 2016.04.09 didn't work on my devices, i continue to post each update by the author Hironori Ishibashi.

The latest version released by Hironori is dated 29th of June. I will appreciate to hear that it works well in your device.

Download Sayuri 2016.06.29 for arm5: HERE

New Android UCI engine: Gambit Fruit 1.0 beta 4bx

The customer is always right!

Indeed, i don't sell anything here and everything i share is FREE OF CHARGE FOREVER. However, that doesn't imply that i don't treat my collegues as customers. When they are right, they are right and they deserve the best.

I'd told there was no build of Gambit Fruit for Android in a previous post. It seems i was wrong and there used to exist one build available, somewhere, sometime, so far from me to detect.

Since there's no time for a complete root cause analysis to discover how and why i skipped the accurate information, the corrective action must take place first. What i can do is to share what's skipped but finally found.

Meanwhile, the Fruit family tree that i'd shared previously deserves now an update:

Download Gambit Fruit for arm7 (up to Kitkat only): HERE

Androids UCI engine oldies: Toga II 1.3.1

Fruit versions and derivative are countless. Another finding just comes bundled within a standalone Google Play app Chess Tactics and Strategy, the same way as Fruit 2.1 which i've posted here minutes ago.

Forgetting and skipping can be excused but ignoring can't. Therefore i recover the delay below, in the name of the collecting spirit!

Download Toga II 1.3.1 for arm7 for Lollipop and beyond: HERE
Download Toga II 1.3.1 for arm7 up to Kitkat: HERE

Android UCI engine oldies: Fruit 2.1

No matter how speculated are Stockfish and Komodo these days, it nothing compared to Fruit. Those who are old enough can easily recall how frequent Fruit had been subject to endless discussions about freely available source code and authenticity of new engines. Fruit, the first open source engine in history, had been the day zero of a new era in chess programming for sure.

I'd shared a lot of fruits in previous posts but one important build seems skipped. Thanks to my colleagues supporting this blog, i came aware of the existence of a build based on the genuine Fruit 2.1 bundled in an app unknown to me, Chess Tactics and Strategy (aka PbChess), available in GOOGLE PLAY.

It has nothing to do with Fruit Reloaded, another engine completely rewritten by the same author. Compiled for arm7 architecture, i think Fruit 2.1 must be a nice addition to the Android engines collection.

Download Fruit 2.1 PIE for arm7 : HERE

Download Fruit 2.1 noPIE for arm7 : HERE

Please note that noPIE (default up to Kitkat 4.4) will not run on Lollipop and beyond. In such case refer to PIE.

Android UCI engine update: Pawny 1.2

Following a request sent to the author Mincho Georgiev and thanks to the efforts by the Android community, we have come to the day where many builds based on the new version of Pawny are available.

After 20 tiny test games played on Exynos 4410 limited to 800 Mhz at 120+1 time controls, the first build prepared by Aart Bik has shown remarkable improvement over Pawny 1.0.

Pawny 1.2.AB.uci.arm5: 13.5 / 20 (+11 -4 =5)

Pawny 1.0.JA.uci2xb  :  6.5 / 20 (+4 -11 =5)

The self play gap is 127 ELO at blitz conditions. A nice start...

Shortly after Aart Bik's help, i have received other builds too from Alex. They are prepared by Mincho himself without any experience on Android. The good news is that they all work fine on Exynos 4412.

I don't know yet which version must be introduced to Rapidroid. I'm currently testing with self play blitz matches.

Now, the builds:
Pawny 1.2 AB for arm5: HERE
Pawny 1.2 MG for arm5 (*): HERE

* actually this one is built for arm V5TE which is in general the target used by everyone, on all builds i've shared until now. I've never seen a V5T build, so i don't share that one compiled by Mincho.

Pawny 1.2 MG for arm7: HERE

There's also an arm6 build available but it makes no sense while arm7 is available.

Android UCI engine oldies: Stockfish 1.8 and 1.9

Good news for the engine collectors who recently asked for the oldest builds of Stockfish: What's lost is found at last.

Hopefully, Aart Bik has come to help and kindly provided me with these ancient oldies. We are starting with 1.X today. I'll be sharing more soon, mostly earliest 2.X versions. Enjoy the past...

Stockfish 1.8 for arm7: HERE

Stockfish 1.9 for arm7: HERE

Android UCI engine updates: Sayuri 2016.06.04 to 2016.06.19

I'd already told that Sayuri will keep raining. So, it does. Ishibashi Hironori is updating his engine regularly in Github, although the improvements between versions are minimal, mostly invisible to Android.

I must notify that the last compile by Jim Ablett may still be stronger than the most recent one, due to the techniques he used to implement.

There are 5 builds released so far by the author in June-2016. As he overwrites the older one each time, that's my duty to save snaphots and share in my repository!

Here are the links to above mentioned daily (almost!) builds, all compiled for arm5:

Sayuri 2016.06.04

Sayuri 2016.06.08

Sayuri 2016.06.14

Sayuri 2016.06.15

Sayuri 2016.06.19

Note that none of these worked on my Note II. In contrast to 2016.04.09 which is still playing in Rapidroid, they fail to send PV's and moves to Chess for Android.

If you find that you are lucky than me and if they work well on your devices, tell me which build and which processor.