How to play game on same phone?

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simendem
I want to play with my friend but it doesn't seem this app offers same phone games.
Dark_Daimyo
Play a computer, change settings, set both sides to "human"
MickinMD

There's a free app on Google Play (for Android, I assume it's available for Apple, too) called "Chess" by cnvcs.com.  Hit "Play" and "Options" and it can be set so that both sides are "Player" and not "Computer."  I can also be set so that people with two phones, each with that app, can play each other by Bluetooth or WiFi, and they can also play online.

The app also has 38,000 great tactics problems in several levels of difficulty, which is my main use for it.  It's chess engine (computer game program) plays a good game, but I'd rather use the Droidfish app for playing chess against the computer or analysis on a smartphone.