Logic Challenge: classic logic puzzles with numbers

Logic Challenge gathers three kinds of classic logic puzzles into one timed game: number sequences, number pyramids and shapes whose numbers follow a shared rule. Each round hides one number behind a question mark. Work out the rule, then tap the right answer from six options before the timer runs out.

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Free · No download · Runs in your browser

Logic Challenge round with a number pyramid, one brick marked with a question mark, and six answer buttons

How to play

Sign in with a free Cleverini account, open Logic Challenge and choose Single player or Multiplayer.
Look at the puzzle: a row of numbers, a pyramid of bricks or a set of shapes with numbers.
Find the rule that connects the numbers you can see.
Tap the missing number from the six options below the puzzle.
Keep solving as the rounds change type; a game has 15 of them, each with its own timer.

What it exercises

Every round is a small missing number puzzle, and the puzzle type changes from one round to the next.

Pattern recognition
In a number sequence you test ideas such as adding a fixed step, doubling, or alternating two rules until one explains every term.
Logical reasoning
In a number pyramid the bricks follow a hidden rule, row by row or along the diagonals, so you reason from what is known toward the single unknown.
Flexible thinking
Because the rounds switch between sequences, pyramids and shapes, you cannot settle into one routine; each new puzzle asks for a fresh look.

Tips

For sequences, write down or picture the differences between neighbouring numbers. If those differences form their own pattern, you are close.
For pyramids, test a rule on a complete row or diagonal first: a repeating pattern, a sum of neighbours, or a fixed step.
For shape puzzles, solve the rule on a complete shape, then apply the same rule to the one with the gap.
Use the six answer options as a hint. If your result is not among them, your rule is probably off by one step.
The difficulty rises with your level, so do not worry if later rounds take longer to see.

Frequently asked questions

Can I play logic puzzles online free?

Yes. Logic Challenge is free and has no ads, and it plays in your browser on a phone, tablet or computer. You need a free Cleverini account to play.

Are these logic puzzles for adults?

They suit adults and older teens. The early rounds use small numbers and simple steps, while higher levels combine operations and take real thought.

How do you solve number sequence puzzles?

Compare each number with the one before it. Look for a constant difference, a constant ratio, or two patterns interleaved. Once a rule fits every visible number, apply it to the gap.

What types of puzzles are included?

Three: number sequences with one missing term, brick pyramids whose numbers follow a hidden rule, and groups of shapes whose numbers are linked by the same rule.

Can I compete with someone?

Yes. In Multiplayer you are matched with another player and a running score shows who is ahead.

Ready for a round?

It opens in your browser. A free Cleverini account keeps your level and lets you play with friends.