Download: Master Chess 3.12 APK

Compatible with Android 5.1+

Developer: Code This Lab

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To install this bundle, you will need: APKServices Installer.

Android Certificate

Package:  com.CodeThisLab.MasterChessMultiplayer

File MD5:  91756816f5ce53d6da945bd0aec30670

Certificate MD5:  c541e243c53e1418663b5659f06471c8

Certificate:  Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number: 232888916 (0xde19a54)
    Signature Algorithm: sha1WithRSAEncryption
        Issuer: O=CodeThisLab
        Validity
            Not Before: Sep 17 13:32:25 2018 GMT
            Not After : Sep  4 13:32:25 2068 GMT
        Subject: O=CodeThisLab
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (1024 bit)
                Modulus:
                    00:9e:06:81:9f:c6:17:d1:56:6a:b6:f1:d8:72:39:
                    0c:b9:6a:2a:85:5e:0d:9c:f3:d3:89:17:5d:02:d0:
                    ac:b5:7a:c0:71:55:8b:2e:39:41:15:26:60:36:01:
                    cd:e8:82:51:86:17:bc:fc:55:00:4c:1d:52:5b:5f:
                    59:9a:02:27:14:d0:6b:dc:32:60:4e:d3:6d:d3:77:
                    b1:bb:8c:fc:d0:bf:4c:1d:4c:13:b6:17:8a:d3:28:
                    f3:70:84:1c:6f:07:7f:a3:f7:e7:e3:74:ee:a1:38:
                    8d:d3:ab:39:c3:12:1b:6d:d5:17:7c:78:a6:7a:db:
                    d5:81:bb:2e:06:06:88:21:3d
                Exponent: 65537 (0x10001)
    Signature Algorithm: sha1WithRSAEncryption
         7c:2a:2a:d7:95:b8:3d:49:e1:71:59:59:be:6e:14:aa:24:ea:
         d5:76:35:ca:2e:c2:80:60:ae:f7:37:d9:90:50:02:7d:02:f0:
         2e:b2:3e:57:9e:db:af:cb:5c:d1:56:1d:37:d2:cf:34:a1:d7:
         fb:db:d0:35:a8:7d:e1:3f:a7:cf:01:39:a8:c4:17:8e:ef:f7:
         2b:84:2b:51:47:8c:70:d7:3a:ca:9d:b3:17:b5:f3:6a:7b:6e:
         ac:07:b5:66:df:89:e8:83:93:19:e1:a5:64:b2:e1:18:4b:2c:
         f1:56:27:ba:00:33:0f:2f:9e:96:a1:15:8a:08:11:ea:80:79:
         d1:10

📱 How to Turn Off Google Play Protect & Enable APK Installation

Important: Disabling Play Protect turns off automatic security scanning. Do this only temporarily and only if you trust the app source.

🍀 Method 1: Turn it off through the Google Play Store

Step 1: Open the Google Play Store app on your Android phone.
Step 2: Tap your profile picture or initial in the top right corner.
Step 3: Select “Play Protect” (it has a shield icon).
Step 4: Tap the gear icon ⚙️ in the top right corner (Settings).
Step 5: You'll see two switches:

Scan apps with Play Protect
Improve harmful app detection

Step 6: 👉 Turn both switches off (slide them to the left).
When asked for confirmation:
“Turn off Play Protect scanning?” → Tap Turn off.

🍀 Method 2: Turn it off from your phone’s Settings app (some phones)

Step 1: Open your phone’s Settings.
Step 2: Scroll down and select Google → then Security.
Step 3: Tap Google Play Protect.
Step 4: Turn off “Scan apps with Play Protect.”

Tip: To turn it back on later, go to Play Store → profile icon → Play Protect → ⚙️ and switch the options back ON.

🍀 Method 3: Allow installation of APK files (outside Google Play)

Step 1: Open your phone’s Settings.
Step 2: Tap Security (or Privacy & Security on newer Android versions).
Step 3: Tap Install unknown apps (or Install unknown sources).
Step 4: Choose the app you’ll use to open/download the APK (e.g., Chrome, Files).
Step 5: Switch on “Allow from this source.”
Step 6: You can now install APK files from that app.