Harbhajan Singh tries his hand at a game of Warri © Siddhartha Vaidyanathan

If you have mastered Warri, you earn the title of "professor". One such professor decided to give Harbhajan a lesson, teaching him the intricacies of the game. A Warri board comprises twelve large pockets, into which 48 beads are filled equally. The player who begins empties one of the pits that belongs to him and distributes the seeds - one for each pit in a clockwise direction. He continues the process by emptying the pit next to where he ends the first set of seeds. He carries on the process until the end, when if he finds more than one empty pit, he gives up the turn to the other player. If he finds one empty pit next to the pit where he ended, then he captures all the seeds gathered on the right side of the empty pit. The player who captures the most seeds ends up the winner.