Chad (chess variant) Chad (chess variant) Chad is a chess variant for two players created by Christian Freeling in 1979. It is played on an uncheckered 12×12 gameboard with one king and eight rooks per side, where rooks are able to promote to queens. The inventor's aim was "to create a game of tactical and strategical depth that was both simple and elegant to express the concept of "mate"—the 'pure' chess game". The game was played for many years at the Fanaat games club in the Netherlands and was featured in the periodical "The Gamer" 6 in May–June 1982. Each player owns a
Oskar Piotrowski (chess player) Oskar Piotrowski (chess player) Oskar Piotrowski (? - ?) was a Polish chess master. In 1902, he played in several chess tournaments in Berlin; took 2nd, behind Eduard Dyckhoff, in the Berlin "Finckenschaft-Turnier", tied for 4-5th in the Café Kerkau Free Tournament (Curt von Bardeleben won), lost a game to Ranneforth in a match Anderssen Chess Club vs. Berlin Finckenschaft Club, tied for 2nd-3rd with Erich Cohn, behind Ossip Bernstein, in the Berlin Summer Tournament - Section I ("Quadrangular"), and shared 2nd with Moritz Lewitt, behind Bernstein, in the 1st Tournament of the General Chess Federation of Berlin. In that