Chess Openings Explorer icon

Chess Openings Explorer APK

701 votes, 4.2/5
  • Author:

    Anton Duzenko

  • Latest Version:


  • Publish Date:


The description of Chess Openings Explorer

Database of all 2.3M standard games played in 2012 on The Free Internet Chess Server (
Sorted by opening moves, white/black win/draw statistics included
Requires 700MB available space on SD card for the uncompressed games database, additionally to the app itself.

Please send your feedback, it will be appreciated

The source code is here:

STORAGE issue. Recently I have added code to work around the KitKat sdcard write restrictions. The uncompressed database is now located at "external storage\data\Android\name.duzenko.chessopeningexplorer"
The problem is some vendors, like Samsung, link external storage to internal phone memory. For Samsung devices only the app will try to use "/storage/extSdCard/Android/data/" so that precious internal memory is not used. If you have a non-Samsung device and want the database on your sd card and not in internal mmeory please contact me via email and I will try to add your vendor to the exception list.
BTW Previously the database was kept in "extsdcard\Chess Opening Explorer". Old files did not get deleted automatically so you should probably do that manually to free the 700 MB of space that the database takes up.

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Chess Openings Explorer APK Version History
Request Chess Openings Explorer UpdateRequest Update
Chess Openings Explorer 1.10.1 for Android 2.3.2+ APK Download

Version: 1.10.1 (29) for Android 2.3.2+ (Gingerbread, API 9)

Update on: 2015-08-14

Signature: 6e5ae1c64209f026fea097291d6a5edf8dced455 Chess Openings Explorer 1.10.1(29) apk safe verified

XAPK File SHA1: 20070cf4fc9d4fe8621f34178cc34ca33cd26693

APK File SHA1: c43bae12401d4351ce0ca9027cc1ea9acccc4b78

What's new: 1.10.1 Touch-based moves1.10Will use CuckooChess to calculate moves fr More...

Download XAPK(224.8 MB)Download APK(1.4 MB)

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