Dr Zbigniew Kokosinski and his diagonal chess in Krakow
epa08932995 Dr Zbigniew Kokosinski poses for a photo with his a diagonal chess in Krakow, southern Poland, 12 January 2021. Dr Zbigniew Kokosinski from Krakow University of Technology designed diagonal chess. According to information from the Krakow University of Technology, the idea of the scientist is original, and the author of the project himself did not find the same solution on the website of chess pages. EPA/Lukasz Gagulski POLAND OUT
