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

June 12, 2017

New Android UCI engine: Pedone 1.6

I wish Pedone could run on my arm7 devices because it's very good news to receive a new 3000+ ELO engine ported to Android. At present there's at least one user who reports that Pedone works well with CfA using quad core arm7 cpu with Android Kitkat.

It's highly surprising that this 32-bit build made for arm7, works fine on my 64-bit MTK6742 octa core cpu under Lollipop while it just exits after tapping to UCI on my Exynos 4412 cpu. That's weird to me because one of the Exynos cpu's is on Kitkat already. So, nothing can explain the issue so far and missing a strong engine is sad for Rapidroid ranking.

Pedone is a UCI compliant chess engine by Fabio Gobbato from Italy written in C. The download from its site includes Windows 32/64-bit, Linux 32/64-bit and Android executables.

During its early development stages, Pedone had its over the board tournament debut at the IGT 2013 with 1½/4. It progressed rapidly, and already won the IGT 2014 with 6/7, and the IGT 2015 with 7/6!

Pedone has a compact quad-bitboard board representation, suited for a copy-make approach and further applies magic bitboards for sliding piece attacks and move generation. Its search is PVS with transposition table, IID and quiescence search inside an iterative deepening framework. The evaluation function was tuned with a similar approach to the Texel's Tuning Method until version 1.0.

Some evaluation bonuses of versions 1.3 and 1.4 were tuned with TD Learning. Since 1.0, released in December 2014, Pedone performs a parallel search using multiple threads, with 1.4 in April 2016, dubbed Lazy SMP.

The further improved Pedone 1.6 released in June 2017 can use up to 128 threads and comes with an executable for Android.

GET Pedone for arm7 pie and don't forget to comment about your experience with your hardware & software info.

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


Alex said...

Hi Gurcan! Did you manage to get full version with promo that i sent to you?

Alex said...

Pedone working fine on android 4.4.2 KitKat and android 6 Qualcomm Snapdragon.
Rahul, android version does not support opening book in Cfa, it is only for PC version.