Chess X4 v1.5.5
APK · 6.8 MB · version code 105050 · Android 5.1+ · uploaded Jan 12, 2026
- Signature matches the Google Play version Details
Quick check before downloading
Answer this to unlock the download. It keeps automated downloaders away.
File information
- Version
- v1.5.5 (105050)
- Uploaded
- Jan 12, 2026
- Size
- 6.8 MB
- Requires
- Android 5.1+ (API 22)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- 03e10399e316960dcdf1a67ecd5563ef
- Signing certificate (SHA-1)
- AB:D6:B7:CE:7E:C2:B6:24:D4:65:7F:02:AF:6E:D2:6B:A4:A5:39:CD
- Signed by
- CN=Giordano Merciari, O=www.Merciari.com
- File name
- com-merciari-chessx4-105050-73072369-03e10399e316960dcdf1a67ecd5563ef.apk
- Package
- com.merciari.chessx4
- Downloads (all versions)
- 50K+
- Age rating
- PEGI 3 · Everyone
Permissions (6)
This version requests 6 permissions, 1 of them sensitive.
- Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
- Full network access android.permission.INTERNET
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Run at startup android.permission.RECEIVE_BOOT_COMPLETED
- View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
- View network connections android.permission.ACCESS_NETWORK_STATE
Security & authenticity
Security rating: Trusted
Signing certificate
- Signature matches the Google Play version Checked by the source store on Jan 12, 2026.
- Certificate issued to “www.Merciari.com” This is the certificate of the Google Play version.
Store checks
- Developer signature verified Jul 28, 2022
- Validated against Google Play Jan 12, 2026
- Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures. AAPKs doesn't scan files itself.
How to install Chess X4 on Android 5.1+
You'll need about 13.7 MB of free space.
- Download the APK — tap Download APK above (6.8 MB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap com-merciari-chessx4-105050-73072369-03e10399e316960dcdf1a67ecd5563ef.apk.
- Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
- Check the file (optional) — the MD5 of the downloaded file should be 03e10399e316960dcdf1a67ecd5563ef. If it differs, the file is damaged or was changed: delete it and download again.
- Tap Install — Android asks “Do you want to install this app?”. If Google Play Protect shows a warning, read it before you continue: the source store rated this file Trusted, but only install apps from sources you trust. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
- Open Chess X4 — tap Open on the install screen, or find it in your app drawer.
Common install problems
- “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
- “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 5.1+). Download it again, or pick an older version.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.