Tactic Blue is a compilation of 6 abstract games by 3 different authors. All of the games are played on a two-sided board, using the hex-grid or square-grid side. Accasta Abande Attangle Attraktion Alva International Checkers Accasta, Abande, Attangle are games designed by Dieter Stein and are part of his stacking games trilogy. Attraktion, a game by Jaroslav Cichocki, uses pull force (attraction) in movement to form a winning condition. Alva, designed by Alvydas Jakeliunas, is like a souped-up version of checkers. The last game included is a classic International Checkers. Apparently the gameboard and components happened to be compatible. Some of the games were previously published on websites.