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olive-gui
Olive is a free open source cross-platform graphical front-end for Popeye chess software and more.
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Scout Monitoring
Free Django app performance insights with Scout Monitoring. Get Scout setup in minutes, and let us sweat the small stuff. A couple lines in settings.py is all you need to start monitoring your apps. Sign up for our free tier today.
The key is unique, as it should be! But as /u/Rocky-64 has already pointed out, there is a dual mate which is easily fixed by moving the player's king from e7 to f7. This is the sort of thing that a program such as Olive can help you spot.
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