From an individual cell, there are three movements available. But there are two kinds of cell - north pointing and south pointing - and the set of three directi

From an individual cell, there are three movements available. But there are two kinds of cell - north pointing and south pointing - and the set of three directions you can move in from each is different. From a north-pointing triangle, you can move south, northwest or northeast. From a south-pointing triangle, you can move north, southwest or southeast. So across the grid as a whole, six movement directions exist.