$ cat writeup.md…
$ cat writeup.md…
bug-makers
Task: an Express jigsaw game gives 60s to assemble 64 shuffled tiles, but /api/new-game leaks the full solved originalImage to the client. Solution: split the original into an 8x8 grid, fingerprint-match every cell to a piece via the Hungarian algorithm, and POST the ordering in one automated fetch-compute-submit loop (~1s).
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