Across the table
Two players, one device — a grandparent and a grandchild, two friends. Take turns and pass the device across the table. No account, no network, no chat: just the game between you.
White 10:00Black 10:00
Set the table — a head start, a clock (both optional) and the board view
An old, honest way for a newer player to have a real game: the stronger player simply starts a piece short. Nothing else changes.
Press "New game" to start with these settings.
On a phone or tablet passed across the table this starts on; on a computer, where two people usually sit side by side, White stays at the bottom. It changes straight away and is saved on this device.
On a tablet lying flat between you (held sideways), "Table mode" puts each player's side on their own edge — the far one upside down for them — and the board stays still, so nobody has to pass anything. Off unless you turn it on.
On a phone or tablet the board turns to face whoever is on the move, so you can sit across from each other; on a computer White stays at the bottom (change it under "Set the table"). When the game ends you get the moves you played. Nothing is saved and nothing leaves the device — when you close the tab, the game is gone.