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Free Online Logic Skills Trainer

Practice logic and attention questions — free, no signup, start instantly on mobile or desktop. The adaptive engine adjusts difficulty to your level in real time.

Start practicing logic
Free · No signup · Unlimited questions

See it in action

Chain logic question: Roy is longer than Tom, Roy is shorter than Kim — who is the shortest? Three answer choices on a phone
Chain logic
Symbol logic question: find the result of 2 minus 10 using a custom symbol defined by examples — answer choices on a phone
Symbol logic
Attention question: find the correctly spelled word among similar options — answer choices on a phone
Find correct

What you'll practice

Attention
Find correct · Match image
Chain Logic
Ordering · Comparison
Symbol Logic
Custom operators · Patterns
Math Puzzles
Number reasoning

Every question is generated uniquely — no two sessions are the same.

Learn from every answer

Instant feedback, every time

Get it right and move on. Get it wrong and try again — the next question adapts to your level.

  • Instant visual feedback — you always know if you got it right
  • Adaptive difficulty — the engine adjusts in real time
  • No timers, no pressure — practice at your own pace
Correct answer: Roy is longer than Tom, Roy is shorter than Kim — answer Tom highlighted green
Correct
Wrong answer: symbol logic 2 minus 10 — selected option highlighted red
Wrong answer

Works on desktop

promsob logic trainer on a desktop browser showing a chain logic question with answer choices
Start practicing logic — free, no signup
Start practicing logic — free, no signup