There is a famous story about the creator of the Chess game and the Emperor ('story' = donno whether its true). This STORY is a fascinating one and it makes us understand the power of exponential growth. The story goes like this... The inventor of chess took his creation to his emperor to get reward for his work. The Emperor became extremely happy about the game and asked the inventor to get whatever he wants for his work. The inventor asks to give 1 grain of rice for the first square in the chess board and double the number for every other square till the 64th square is reached (note: there are 64 squares in a chess board....mostly). I too thought that the emperor might not have a pretty daughter after the inventor chose such a small and modest wish ;) The emperor comfortably agreed for this. He ordered his men to get the grains immediately from his granary. The count started with 1 grain of rice for the first square, followed by 2 for the second square, then 4, then 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768........By the time he was compensated for half the chessboard, he owned all of the rice in the kingdom and, by the sixty-fourth square, the emperor owed him 10,000,000,000,000,000,000 grains of rice. phew! And the inventor lived happily ever after :-)

Now, can you solve this 8 queens problem?

You must place 8 queens onto the chess board below. No queen can be attacking any other queen. (A queen can attack all cells on its vertical, horizontal, and diagonal lines of sight)

Never, never, never, never give up...

Cool Optical Illusion