Match game?
Else clues• Hollywood Squares basis
• 3-in-a-row game
• Cat's game game
• Child's logic game
• Game featured in the movie WarGames
• Game in which crosses are used
• Game of X's and O's
• Game often stalemated
• Game that often ends in a tie
• Game that's hard to win
• Game that's the hidden theme of this puzzle
• Game with losing lines in 18-A, 28-A and 48-A
• Game-winning cry
• It's rarely won
• Simple game
• The British call it noughts-and-crosses
• Three-in-a-row game
• Two-person pencil-and-paper game
• What Brits call noughts and crosses
• XXX activity