Ancient Chess And Origin

Chess originated in ancient India around the 6th century CE, where its earliest known form was called Chaturanga. The game was played on an 8×8 uncheckered board known as ashtāpada, which may have been used for other games as well.

The name "Chaturanga" is derived from Sanskrit, meaning "four divisions of the military," referring to the four components of an ancient Indian army: infantry (padati), cavalry (ashva), elephants (gaja), and chariots (ratha), which correspond to modern pawns, knights, bishops, and rooks, respectively.

 From India, "Chaturanga" spread to Persia by the 7th century, where it evolved into "Shatranj", and the Persian term "Shah Mat" (meaning "the king is helpless") gave rise to the word "checkmate".

Over time, the rules and pieces were modified, particularly in 15th-century Spain and Italy, where the queen became the most powerful piece and pawns gained the ability to move two squares on their first move, leading to the modern form of chess.

 The pieces moved differently from those in today’s chess. For example, the predecessor of the bishop moved only two squares diagonally, and the queen—then called the vizier or counsellor—was a weak piece that moved only one square diagonally. Pawns could not move two squares on their first move, and special moves like castling did not yet exist. Despite these differences, the concept of check and checkmate was already central to gameplay.

Special Rules of Chaturanga: 

• No castling: The king had no special protection move, making early defense more difficult.
• No pawn promotion to a queen: When a pawn reached the last rank, it could usually only be promoted to a vizier, not to a powerful piece.
• Checkmate was not always required: In some versions, the game could be won by capturing all opponent pieces or by stalemating the king.
• Stalemate: counted as a win for the player delivering it, unlike modern chess where it is a draw.