Solva: Sudoku & Logic

Solva is a calm collection of pure-logic puzzles, made for people who want to think — not to be nagged. THREE PUZZLES, ONE DESIGN • Classic Sudoku — 9×9, the one everybody knows. • Killer Sudoku — sudoku plus cages that add up to a target. • Crowns — place one crown in every row, column and coloured region. No two may touch. Learn one interface and you know them all. EVERY PUZZLE IS SOLVABLE BY LOGIC No guessing is ever required. Every puzzle has exactly one solution and has been checked by a technique-aware solver before shipping. If a puzzle says Hard, it means Hard because of the reasoning it needs — not because we took clues away. NO LIVES. NO HEARTS. NO "THREE MISTAKES AND YOU LOSE." Mistakes are counted and shown on the result screen, and that is all they do. You can also turn the mistake warnings off completely and check only when you are finished. HINTS THAT TEACH Three levels,…