Solve puzzles by filling 9×9 grids with digits 1-9. Choose from four difficulty levels. Store notes for possible numbers. Use hints to fill missing digits. Complete daily challenges. Clear grids when all numbers are placed.
Play Sudoku to challenge your mind with a 9×9 grid. Fill rows, columns, and 3×3 sub-grids with digits 1–9. Choose from easy, medium, hard, or expert levels. Disable numbers after all instances are entered. Use note-taking and hints when needed.
Guess a 3 or 4 digit number with unique digits. Receive feedback with A/B indicators showing correct digits in the right position and correct digits in wrong position. Adjust guess limits and number ranges.
Play quizzes with friends or solo. Choose from easy, normal, or hard difficulty. Refill lives quickly. Get detailed explanations for each question. Access 50,000 questions in multiple languages.
Collect digits to form the largest number and earn in-game currency. Use earned money to build tower barracks. Deploy soldiers in a battle card game to fight and progress.
Test visual and auditory memory by recalling and re-entering a using a nine-digit keyboard. The length increases each round, and your score improves with faster correct guesses.
Guess a hidden within 6 attempts. Receive feedback on letter placement with color-coded hints. Choose between American, British, or Spanish dictionaries. Letters can repeat in the answer. Play unlimited rounds without time limits.
Play a guessing game where users guess a 3 or 4 digit secret . Receive "Bull" for correct digits in the right position and "Cow" for correct digits in the wrong position.