|Stripes at right angles to centre square|
|Stripes parallel to centre square|
Note how the stripes are aligned in relation to the centre square, either all parallel or at right angles.
Next cut the block in half vertically and horizontally. Try not to let it shift between cuts. To ensure my cuts are are even I like to use two rulers to measure from both sides at once then move one ruler away in order to make the cut.
|Block cut in half vertically and horizontally|
|Two rulers enable an even cut|