Iodoku

Iodoku has grown into a full Sudoku learning and improvement system. NEW IN THIS UPDATE • Daily Ladder A guided daily challenge path designed to build skill and momentum. • Solve Replay Review completed puzzles step by step and see the verified logical path through the board. • Sudoku IQ Track your growth with progress insights based on logic purity, accuracy, pace, and solving consistency. • Smarter Hints Hints now focus on teaching the next logical step instead of simply giving away answers. • Training Improvements Technique practice is faster, clearer, and better aligned with real Sudoku solving. • Achievements Earn badges for milestones, clean solves, streaks, advanced play, and long-term mastery. • Game Library Resume unfinished puzzles or review completed games. • Custom Puzzle Support Enter puzzles from books, websites, newspapers, or your own designs. • Improved Controls Digit-first play, better note tools, clearer highlighting, and more flexible gameplay settings. • More Game Modes Classic Sudoku plus thoughtful variants including Large X, I-Mode, Windoku, and Color Channels. • Premium Polish Cleaner menus, improved layout, localization support, better settings, and a more refined overall experience. This update is focused on making Iodoku not just a Sudoku app, but a place to learn, improve, and enjoy the logic behind the game.