Omega Chess is a commercial chess variant designed by Daniel McDonald in Toronto. The game is played on a 10x10 board with an extra square dangling off each of the four corners for the wizards. The game is laid out like regular chess with the addition of a champion in the corner and a wizard diagonally behind each champion (see diagram on right).
Part of the reason for adding the new pieces was to equalize the number of jumping pieces with sliding pieces. There have also been a number of endorsements by grandmasters including Michael Rohde and Alex Sherzer.
See also: Capablanca Chess