yes, a "block" is when you're right at the exit of the castle and there's nowhere to run.
but here, there are many ways to go around, essentially only one direction is blocked, which is simply broken through later – when everything is already being swept away in the path ;)
so the result is correct – a comeback was impossible because the map was already explored :)
nevertheless, I'm waiting for an opponent to try and improve the score :D
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