Karpov's game (5)
I believe the answer is:
chess
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">karpov's game</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for chess that I've seen before include "Benny Andersson and Bjorn Ulvaeus musical" , "This is played on board" , "In which two bishops will participate" , "Ancient war game whose name may have derived for the Persian for 'king'" , "Sixteen-men-a-side game" .)