rocq-community /hydra-battlesCoq8114Variations on Kirby & Paris' hydra battles and other entertaining math in Coq (collaborative, documented, includes exercises) [maintainer=@Casteran]coqhydra-battlesordinal-notationsformal-proofs
rocq-community /sudokuCoq204A certified Sudoku solver in Coq [maintainers=@siraben,@thery] coqsudokunix-action