I'll add to Morfdoggs' comment and reccomend practising on a old mini you may have, preferably with flat areas.
Start with your lighter cheque colour as a base coat. When dry, use a small brush to paint vertical and horizontal lines. Be patient, don't rush it (you can also use a fine tip artist pen as well to do the linework). When done, paint your dark cheque colour in an alternating pattern. If you botch it you can paint over and start again. It's all practice.
Jase
PS. Welcome to the board.