Agreed, L over R then R over L is a square knot or reef knot. L over R, L over R would make a granny knot. But maybe in the UK both are called a granny knot?

Agreed, L over R then R over L is a square knot or reef knot. L over R, L over R would make a granny knot. But maybe in the UK both are called a granny knot? Interestingly, when a granny knot is collapsed (the cord on one side gets pulled taut), it becomes two half hitches. When a square knot is collapsed, it becomes a larks head or cow hitch knot. In the balanced state, the granny is a weaker knot and the square is stronger. In the collapsed state (then cleaned up a little bit), two half hitches is a stronger knot than a cow hitch.