Who invented checkmate?
Who invented checkmate? The Persians (c. 700–800) introduced the idea of warning that the king was under attack (announcing check in modern terminology). This was done to avoid the early and accidental end of a game. Later the Persians added the additional rule that a king could not be moved into check or left in check. What is a Discovered move in chess? A discovered attack happens when a player moves one piece out of the way to reveal a previously blocked attack by another piece. When the discovered attack results in a check, this is known as a discovered...