Brainstorm Game - 1972 - E.S. Lowe - Great Condition
Game play begins with the players deciding which of them will play X and which will play O. Then the fifteen X/O dice are rolled, and whichever player's symbol came up more goes first. Players alternate placing the dice with their symbols until either time runs out or there are no more dice left. This does mean that one player may get more turns than the other. This confers a substantial advantage to the first player, which the rules suggest can be balanced out by playing multiple games.
The final layout is scored, generally by counting the number of sets of three for each player, though the board also contains special double- and triple-score squares as well as some squares preprinted with X or O.
The player with the highest score wins.