Neatest and least odd-looking would probably be to cut a quarter-circle around/off the relevant corner. Mark it with a compass or a fortunately-sized bowl/bucket/tin etc, and jigsaw it carefully. Or router with a circle jig if you are so inclined
Thanks - this makes sense.
@gillies started
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Neatest and least odd-looking would probably be to cut a quarter-circle around/off the relevant corner. Mark it with a compass or a fortunately-sized bowl/bucket/tin etc, and jigsaw it carefully. Or router with a circle jig if you are so inclined