Can I draw the computer by perpetual check on this site?

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.

Why a chess habit fails here

In chess, a worse position is often saved by checking forever. In xiangqi the player giving the repeated checks must vary or lose. So if you are losing to the computer and start checking back and forth, you convert a lost game into a lost game on repetition. Find a real defence instead. See why perpetual check loses.

It works in your favour too

If the computer repeatedly checks you or chases one of your pieces in a cycle, the rule applies to it as well. You do not need to find a way out of the cycle; you need only make sure your own moves in it are not checks or chases.

What the site does not catch

To be precise about the limits: a chase is recognised when the piece that just moved makes the threat. A chase created by discovery, where moving one piece uncovers another's attack, is deliberately not treated as a chase, so such a cycle may be judged a draw where a tournament arbiter could rule otherwise. The chase ruling has also not been validated against the official repetition casebook. For practice against the computer that rarely matters; for tournament preparation, know the rules themselves on perpetual check and chase.

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