7x3Allows you to choose the difficulty of the map.
In my case, the easy difficulty is automatically set after 50 seconds, removing the other remaining options. If you select a different difficulty by pressing the appropriate button, the easy difficulty will not be applied automatically (since the processor will be deleted). The selected difficulty is highlighted.
You can take a scheme and customize it for yourself (without specifying any authorship, if you even care about it).
(Should work fine, tested it...) 20 20 ()()()()()
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