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Place the 16 different combinations of cup/saucer in this 4 by 4 arrangement so that no row or column contains more than one cup or saucer of the same colour.

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Counting on Letters

The letters of the word ABACUS have been arranged in the shape of a triangle. How many different ways can you find to read the word ABACUS from this triangular pattern?

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Teddy Town

There are nine teddies in Teddy Town - three red, three blue and three yellow. There are also nine houses, three of each colour. Can you put them on the map of Teddy Town according to the rules?

Intersection Sudoku 2

Stage: 3 and 4 Challenge Level: Challenge Level:1


We received an email from Anna Olszanska, a maths teacher at a school in Warsaw, Poland, telling us that this puzzle was solved by some of her 13-15 year old students during the School Sudoku Challenge. The best time was 19 minutes and was achived by Maja.

Well done Maja.