Tic Tac Chec is a small chess variant game, sold commercially. Daniel U. Thibault saw this January 1997 sold in a shop. Below, you see his description of the game.
Tic Tac Chec is sold by Dream Green, a company selling several board games, for $15.95 excluding postage.
A 4x4 chessboard; two sets of four chess pieces (pawn, rook, knight and bishop).
To form an alignment (row, column or diagonal) of all four of your pieces.
Start with an empty board.
Players alternate taking turns. On his turn, a player may either:
Pieces move as per normal chess, except that pawns reverse the direction of their progress once they've reached the edge of the board and can no longer advance (so pawns keep going across and back).
Pieces attack as per normal chess. A piece "taken" is not sequestered but returned to its owner for later placement (so enemy pieces can only be temporarily removed from the board).