The key to this puzzling trap is straightforward. The standard arrangement of dominoes comprises of twenty-eight dominoes. At the point when these are coordinated number to number and laid out in a line, then the numbers at either end will dependably coordinate e.g. two twos, two fours, two ones and so on.
Be that as it may, on the off chance that you expel one domino from the set, which has diverse numbers on it (not a twofold), then the numbers at either end of the line will be the same as the numbers on the domino you have expelled. Watch video in link below