1) Attempted another generation 2) Beat at the board 3) Beat in a board game 4) Beat in chess 5) Beat Karpov 6) Beat Magnus Carlsen 7) Beat spassky 8) Beaten at chess 9) Beaten by a masterly fellow 10) Beaten by botvinnik 11) Beaten by Fischer 12) Beaten by Karpov 13) Beaten in chess 14) Beaten, a la bobby fischer Found on https://www.crosswordclues.com/clue/mated