Copyright (c) 1978? Berliner Spiele
Taktik is played on a hexagonal board with the following setup (the black cells are not used):
- MOVE - Each stone may slide any number of empty cells on any direction (they cannot jump other stones).
- GOAL - Wins the player that aligns his 4 stones.
If the black stone below moves to cell , it may slide next turn into one of the cells  to win the game. White can only stop one of those threats.
It's possible to find a bit more information on JeuxSoc.