Reasoning & recall

Sudoku, crosswords, differences and pairs: logic, vocabulary, attention to detail and visual memory in classic formats.

4 exercises · 30 progressive levels, from basic to advanced

1. Sudoku

   Fill the grid without repeating a number in any row, column or box.

2. Crossword

   Work out the words from the clues and fill the grid.

3. Spot the difference

   Compare the two pictures and find every difference.

4. Memory pairs

   Turn the cards over and find every pair in as few moves as possible.