The Rock Game is a simple logic game. It is more commonly known as Nim, which has been around since ancient times and many believe its origins can be traced back to early China.
The rules are extremely simple. On each turn a player must take at least one rock but may not take rocks from different rows in the same turn. The objective is to not be the player that takes the last rock.
It may sound simple enough, but it is deceivingly difficult. The person who plays first has an advantage, but one simple mistake can change the outcome very quickly. Try not to get beaten too badly and most of all don’t get stuck between a rock and a hard spot.