Omega Chess
commercial chess variant designed by Daniel MacDonald played on a 10×10 board with four extra squares at the corners
en-GB/əʊˈmeɪɡə ˈt͡ʃɛs/
en-US/oʊˈmɛɡə ˈt͡ʃɛs/
commercial chess variant designed by Daniel MacDonald played on a 10×10 board with four extra squares at the corners