It is important to remember that you may only flip discs that lie between the disc you have just placed and another of your colour already on the board. Taking the previous example of a white move at 10, after white has flipped the 4 discs mentioned the black discs at C4, D4 and E4 now lie between the white disc at B4 and a disc you have just flipped at F4. However, you may NOT flip the discs at C4, D4 and E4, even though they are now trapped between two white discs, because neither of the two white discs were played on this turn. Any discs flipped must lie in a continuous line between the disc you have just placed and another disc of your colour already on the board. However, you may NOT flip the disc at F5, even though it lies between A5 and G5, because it does not lie in a continous line from the disc you have just placed.
Play continues alternately.
First black, then white. It is possible to pass several times in succession. The winner is the player with the most pieces of his colour showing.