Selective Focus

Selective Focus — a cognitive exercise for training your ability to concentrate on target information while ignoring distractions. Find specific numbers (even or odd) among others, training data filtering skills. Free online trainer: 10 levels (3×3, 4×4, 5×5 grids), accuracy and speed scoring, statistics in your dashboard.

Start Practice

How to Play

  • Find and select all EVEN numbers (2, 4, 6, 8...)
  • Avoid odd numbers (1, 3, 5, 7...)
  • Complete before time runs out
  • Score: 70% Accuracy + 30% Speed
  • Get 100% accuracy to unlock next level

Select even numbers:

4
7
12
3
8
5
2
9
1

Selected numbers are blue

Statistics

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