Is it a draw if both sides have only their general left?
These answers restate the rules implemented by our open-source engine, which follows the WXF laws for movement, checkmate and both repetition rulings: a side that forces a repetition by perpetual check or perpetual chase loses rather than drawing. The chase half has not been validated against the official casebook. Where an answer refers to a specific position, that position lives on the linked reference page, where the build verifies it before publishing.
Direct answer
Yes, a dead draw. Neither general can ever attack the other — the flying general rule keeps them off a shared open file, and they can never become adjacent. With no other material on the board there is no way to construct a check, let alone a mate.
Nearly-bare positions are more interesting
One general plus a single piece is where the real questions are. A lone chariot wins. So does a lone horse, and a lone soldier wins unless it has already reached the last rank. A lone cannon does not. A cannon with an advisor does, because the advisor supplies the screen.
Those distinctions decide whether a simplification is winning or throwing a win away.
The trap to avoid
Trading down to a lone cannon against a bare general. It looks like winning material and is in fact agreeing a draw, because a cannon with nothing to jump cannot even give check.
Related questions
Can two generals ever check each other?
No. The flying general rule prevents the facing position from ever arising.
What is the minimum material to win?
A single piece, using your own general's help: a chariot, a horse, or a soldier that has not yet reached the last rank. A lone cannon is not enough.
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