River Crossing Puzzles

River crossing puzzles have been a recurrent theme in recreational mathematics. The best-know is The Fox. the goose. and the grain which was popularized by Lewis Carroll, who often presented it to young children. He did not take credit for its creation. It apparently originated in the 8th century, which attests to the staying power of the puzzle. 


River crossing puzzles span a range of difficulty, here are more than you will ever need, beginning with Carroll's, and continuing with increasing difficulty.