Diamond 25

Diamond 25 is a mathematical puzzle in which one must use the digits '1' through '9' to get 25, within each diamond composed of 6 pieces without repeating the same digit or summing more than or less than 25. There are 16 diamonds within the larger diamond.

See also

Further reading

Wikimedia Commons has media related to Logic puzzles.
This article is issued from Wikipedia - version of the 11/8/2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.