This quiz is harder than either of the previous ones. It requires some pretty extensive chess knowledge, and is based on a variety of subjects, such as chess variants, chess computers and world champions.

QUIZ

1. In which state of the former USSR was Garry Kasparov born?
a: Latvia b: Belarus c: Uzbekistan d: Azerbaijan

2. Kriegspiel is a chess variant in which players cannot see what?
a: Their own pieces b: Their opponent's pieces c: The board d: The clocks (in timed games)

3. Why was Paul Morphy never World Champion?
a: He was forbidden to play after taking drugs b: He died aged 20 c: He played before 1886 d: He stopped playing after losing 7-1 to Capablanca in an eight-game match

4. How many times did Mikhail Botvinnik claim back the title of World Champion after losing it in 1957?
a: 0 b: 1 c: 2 d: 3

5. In Chaturanga, an early form of chess from India, the bishop was replaced by an elephant. How did it move?
a: 1 square in any direction b: 2 squares horizontally or vertically c: 1 square diagonally d: 2 squares diagonally

6. Bobby Fischer was granted citizenship of which country in 2005?
a: East Timor b: USA c: Sweden d: Iceland

7. Still on the subject of Fischer, which of these could be an example of Fischer timing?
a: 5 minutes for the game plus 15 seconds for each move made b: 5 minutes for the game plus 1 second per move for each pawn still on the board c: 5 minutes for the game plus 1 second per move for each opponent's piece captured d: 16 seconds per move minus 1 second per move for each piece lost

8. When was the first time a chess computer beat a human player?
a: 1953 b: 1958 c: 1963 d: 1968

9. What is the Élo Rating currently required to become an International Master?
a: 50 b: 2300 c: 2400 d: 2500

10. How many players participated in the 2005 World Chess Championship?
a: 2 b: 8 c: 32 d: 201