,,The puzzles are taken from the Dürer Competition, a maths contest for 10 to 18 year olds that has been running in Hungary since 2007. It was founded by a group of first year students at Budapest’s ELTE university, who wanted to create a fun competition that they would have enjoyed as children (…). The competition has brought new energy to maths outreach in Hungary, and a selection of its questions are just out in a book, Mathematical Explorations for Young Minds.”