1815 13 Sept. 2/5 Gneisenaw began that decisive and incessant pursuit..which, to his praise and that of the army, must be allowed to have been the grand masterly stroke.
1965 9 Apr. 590/1 Here..is a case of..truly grandmasterly chess.
1993 June 2/2 (advt.) The ChessMachine..won against Flear to obtain a grandmasterly tournament performance rating of 2525.