It is not hard to cut a bagel into two equal halves which are linked like two links of a chain. To start, you must visualize four key points. Center the bagel at the origin, circling the Z axis. A is the highest point above the +X axis. B is where the +Y axis enters the bagel. C is the lowest point below the -X axis. D is where the -Y axis exits the bagel. These sharpie markings on the bagel ar