Beginner Sudoku Challenge | Basic Solving Techniques
Standard training ground for beginner Sudoku enthusiasts. Apply basic techniques like single candidates and row/column elimination. Free online Sudoku game with moderate difficulty — comfortable pacing for developing logical thinking and advancing to intermediate levels.
📖 Basic Rules
Sudoku is a 9×9 grid, divided into nine 3×3 boxes. The goal is to fill in the numbers 1–9 so that each row, each column, and each box contains all the digits from 1 to 9, with no repetitions within any row, column, or box.
Start your journey with Gentle Start, designed for absolute beginners where most numbers are already filled — just complete a few cells to learn the rules and build confidence. Move on to Easy Warm-up to reinforce your fundamentals with more blanks yet straightforward logic. Ready for Steady Progress? Basic techniques like single candidates become your trusted tools. The Mind Challenge awaits at medium difficulty, where combining naked pairs and hidden singles marks the true turning point. Brave the Deep Dive of hard puzzles, where advanced strategies like X-Wing and Swordfish push your skills to the limit. Finally, ascend to the Ultimate Peak — a near-empty grid where only true Sudoku masters can conquer the ultimate test through complete mastery of chain reasoning and every advanced technique known.