Both of you here
One phone or tablet, passed back and forth. The board turns round each turn so whoever’s holding it sees their own home board. No code, nothing to connect.
Someone somewhere else
You each play on your own phone. One of you starts and reads out four letters.
Join a game
Type the four letters whoever started it read out.
Waiting for the other player
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read this out, or send the link
Opponent
You