Tetonor Puzzle - Free Online Number Logic Game from The Sunday Times
Play Tetonor Puzzle Online Free
Experience the classic Tetonor puzzle from The Sunday Times - a challenging number logic game that combines arithmetic and deduction. Match pairs to fill the 4×4 grid, where each pair appears twice: once as a sum and once as a product.
How to Play Tetonor
Tetonor puzzle, featured in The Sunday Times, challenges your logic and arithmetic. Match pairs from the strip to fill the 4×4 grid, where each pair appears twice—once as a sum and once as a product.
Understand the Tetonor
The Tetonor puzzle presents a 4×4 grid with target values. Below each target, input two values and an operator (+ or ×) to match the target. Find which pairs from the bottom strip create each result.
Match Pairs with Operations
Each pair in the Tetonor must be used exactly twice. For example, if your strip has 4 and 6, find cells with 10 (4+6) and 24 (4×6). Click the operator to cycle through ?, +, and ×.
Solve Hidden Values
Higher Tetonor puzzle difficulty levels hide some values. Use logic to deduce them: if you see target 72 and know one value is 8, the other must be 9 (8×9=72).
Verify Your Solution
Click 'Check Solution' to verify your Tetonor puzzle answer. Correct cells turn green, incorrect ones red. Remember: each pair must appear as both a sum and product.
Tetonor Puzzle Pro Tips
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Start with large products—they're unique and easier to identify in the Tetonor puzzle.
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Mark used values by clicking them to track your Tetonor puzzle progress.
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Work systematically in the Tetonor puzzle. Logical deduction always leads to the solution.
💡 Need more details? Check out our Tetonor Rules section for complete game mechanics, or visit the FAQ for quick answers.
Tetonor Rules
The Core Tetonor Principle
Tetonor puzzle from The Sunday Times follows one fundamental rule: every pair of numbers from the strip must appear in the grid exactly twice—once as a sum (addition) and once as a product (multiplication). This dual-appearance rule is what makes the Tetonor puzzle uniquely challenging and satisfying to solve.
Understanding the Tetonor Grid
The Tetonor puzzle presents a 4×4 grid containing 16 target numbers. Each cell in the grid represents either the sum or product of two numbers from your strip. Your task is to identify which pair of numbers creates each target value and determine whether they were added or multiplied together.
The Number Strip in Tetonor
Below the Tetonor puzzle grid, you'll find a strip of 16 numbers arranged in ascending order. These numbers form 8 pairs that you must match to the grid. In Easy mode, 5 numbers are hidden; Moderate hides 7; Difficult conceals 11. Hidden numbers must be deduced through logical reasoning based on the visible targets in the Tetonor grid.
Tetonor Pairing Rules
Each number in the Tetonor strip can only be used once, but each pair must be used exactly twice. For example, if your strip contains 6 and 8, you must find both 14 (6+8) and 48 (6×8) in the puzzle grid. You cannot use 6 with any other number, and 8 cannot pair with any number except 6. This constraint requires careful planning.
Operations in the Tetonor Puzzle
The Tetonor puzzle uses two arithmetic operations: addition (+) and multiplication (×). For each cell, you select two numbers from the strip and choose the operation that produces the target. Click the operator button to cycle through the options. Both operations must be used for every pair—this is the key to solving any Tetonor puzzle.
Completing the Tetonor Puzzle
You win the Tetonor puzzle when all 16 cells are correctly filled. Each pair from the strip must appear as both a sum and product, with no numbers left unused. The game provides immediate feedback: correct cells turn green, incorrect ones turn red. A perfect solution means every pair is properly matched and all operations are correct.
🎮 Ready to play? Head back to the game board to start, or check How to Play for step-by-step instructions.
Frequently Asked Questions
What is Tetonor puzzle?
Tetonor puzzle is a popular logic puzzle from The Sunday Times that combines arithmetic and deduction. Match pairs from the strip to the 4×4 grid, where each pair appears twice: once as a sum and once as a product. If your strip has 5 and 7, find cells with 12 (5+7) and 35 (5×7).
How do I play the Tetonor puzzle?
Select your Tetonor puzzle difficulty level, then fill each grid cell by choosing two values from the bottom strip and an operator (+ or ×). Click values to mark them as used. Each pair must be used exactly twice—once for addition, once for multiplication. Click 'Check Solution' to verify your Tetonor puzzle answer.
What are the Tetonor puzzle difficulty levels?
The Tetonor puzzle offers three levels: Easy (values 2-20, 5 hidden), Moderate (values 5-35, 7 hidden), and Difficult (values 10-50, 11 hidden). The 4×4 puzzle grid stays the same, but complexity increases with each level.
What strategies help solve the Tetonor puzzle faster?
In the Tetonor puzzle, scan for unique large products first—they're easier to identify. Mark used values immediately to avoid confusion. Start with certainties and work systematically. When you place a sum, immediately search the puzzle grid for the matching product.
Is the Tetonor puzzle suitable for beginners?
Yes! The Tetonor puzzle Easy mode is perfect for beginners with smaller values (2-20) and only 5 hidden values. The intuitive interface and helpful features make this Sunday Times puzzle accessible while developing logic and problem-solving skills.
Can I play the Tetonor puzzle on mobile?
Absolutely! The Tetonor puzzle is fully optimized for mobile devices with touch-friendly controls and responsive design. The puzzle interface adapts to your screen size, making it perfect for solving on smartphones, tablets, or desktop.
📚 Want to learn more? Visit How to Play for detailed instructions or review the complete rules.