In another topic the 1upt vs +upt discussion flared up again. Argument for 1upt is basically the better strategic possibilities and argument for +upt is basically the better movability and army density. Thinking it over I came up with a solution in which the best of both may be combined. It has the following rules. 1) Units can be stacked 2) When units stack the player must choose the order in which units battle. (Mimicing the positioning of units). 3) From one tile of stacked units only one unit should be allowed to attack per turn (the unit put in front). With these rules you are able to build very movable and dense armies due to their stackability. At the same time you need to apply strategy on how you position your units in your stack. And also you still have the possibility to use multiple tiles to enhance your strategy. I am interested in argumented opinions.