A collection for your next card break.
UsefulSet Cards brings card games and focused practice together. Play Make 21, our own sum-and-suit puzzle, or practice counting cribbage hands.
UsefulSet Cribbage is a free hand calculator and counting practice experiment. The goal is to make each missed point understandable, with first-attempt stats and a local review queue. Made with AI assistance and checked against the ACC 2025 scoring rules. It does not assess discard strategy or pegging.