The game Tactica "S" is a deep abstract game for two players. It has 8 white pieces and 8 black pieces that move along an 8x8 board.
The mechanics are similar to Chess (the movement of pieces), Tablut (the way pieces capture other pieces) and Othello (pieces change sides - colours).
Pieces are never removed from board, but only change sides. The winner is the one who captures or blocks all the opponents pieces.