Six games worth returning to, in one app with no clutter and nothing to sign up for.
Get it on Google PlayMost games hand you the answer. Cardstock explains the reasoning. Ask for help in Sudoku and it names the technique it used — a hidden single, a pointing pair — and shows the cells that prove it. Ask in Solitaire and it tells you which move turns over a hidden card, and why that matters. Or select a square and be told the answer outright. Your choice, every time.
Every game has its own puzzle each day, the same one for everyone, and its own streak. Care only about the sudoku? Ignore the chess without losing your run.