Mate in 2 (Chess Puzzles) v5.7.6
APK · 23.7 MB · version code 10000024 · Android 7.0+ · uploaded May 20, 2026
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File information
- Version
- v5.7.6 (10000024)
- Uploaded
- May 20, 2026
- Size
- 23.7 MB
- Requires
- Android 7.0+ (API 24)
- CPU support
- ARM 64-bit
- Screen
- Small screens and larger
- MD5
- 817a102b470611d8229e9156254bce1a
- Signing certificate (SHA-1)
- 7D:64:F9:C2:53:C7:EF:35:A0:72:0F:6F:8A:80:2B:D4:B9:20:AA:3A
- Signed by
- CN=Jx Clarynx, O=zph-mph, OU=anon.org, L=Caraga, ST=Surigao Del Norte, C=8609
- File name
- com-chessking-android-learn-attack1-10000024-74849954-817a102b470611d8229e9156254bce1a.apk
- Package
- com.chessking.android.learn.attack1
- Downloads (all versions)
- 100K+
- Age rating
- PEGI 3 · Everyone
What's new in v5.7.6
* Added Czech and Korean translations
* Show best and worst subtopics on the statistics screen
* Increased board size in the landscape mode
* Feel free to share your experience via the feedback!
* Various fixes and improvements
Permissions (15)
This version requests 15 permissions, none of them sensitive.
- Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
- Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
- Access adservices custom audience android.permission.ACCESS_ADSERVICES_CUSTOM_AUDIENCE
- Access adservices topics android.permission.ACCESS_ADSERVICES_TOPICS
- Full network access android.permission.INTERNET
- Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
- In-app purchases (Google Play Billing) com.android.vending.BILLING
- Internal broadcast protection (app-defined) com.chessking.android.learn.attack1.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Receive push notifications com.google.android.c2dm.permission.RECEIVE
- Run foreground services android.permission.FOREGROUND_SERVICE
- Show notifications android.permission.POST_NOTIFICATIONS
- Use biometric hardware android.permission.USE_BIOMETRIC
- Use fingerprint hardware android.permission.USE_FINGERPRINT
- View network connections android.permission.ACCESS_NETWORK_STATE
Security & authenticity
Security rating: Trusted
Signing certificate
- Certificate issued to “zph-mph” Not the developer's name (“Chess King”). Names in certificates can't be verified, so this alone proves nothing.
Store checks
- Developer signature under review May 20, 2026
- Uploaded by “superpocket” Silver tier · 5,272 followers · uploading since 2016
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 Mate in 2 (Chess Puzzles) on Android 7.0+
You'll need about 47.4 MB of free space.
- Download the APK — tap Download APK above (23.7 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-chessking-android-learn-attack1-10000024-74849954-817a102b470611d8229e9156254bce1a.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 817a102b470611d8229e9156254bce1a. 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 Mate in 2 (Chess Puzzles) — 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 7.0+). Download it again, or pick an older version.
- “App not compatible with your device” — this build contains native code for ARM 64-bit only. Devices with other processors can't install it.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.