What if on 5 we roll 3 -> return 3. Then on 4 we roll 3 -> return 5, delete map. Then on 3 we roll 3 -> return?, no more map, index to swap with is also 3.
Test these assumptions :-)
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What if on 5 we roll 3 -> return 3.
Then on 4 we roll 3 -> return 5, delete map.
Then on 3 we roll 3 -> return?, no more map, index to swap with is also 3.
Test these assumptions :-)