*Objective:* Checkmate your opponent's king, which means the king is under attack and cannot escape capture.

*Setup:* The board consists of 64 squares, arranged in an 8x8 grid. Each player starts with 16 pieces: one king, one queen, two rooks, two knights, two bishops, and eight pawns.

*Turns:* Players take turns moving one piece at a time. You can move a piece to an adjacent square or capture an opponent's piece by landing on its square.

*Piece movements:*

- King: One square in any direction (horizontally, vertically, or diagonally)
- Queen: Any number of squares in any direction (horizontally, vertically, or diagonally)
- Rook: Any number of squares horizontally or vertically
- Bishop: Any number of squares diagonally
- Knight: Two squares in one direction (horizontally or vertically), then one square in a perpendicular direction
- Pawn: Forward one square, but captures diagonally

*Special moves:*

- Castling: Move the king to the opposite side of the board, switching places with a rook
- En passant: Capture an opponent's pawn as if it had moved two squares

*Check and checkmate:*

- Check: When a player's king is under attack, it's said to be "in check." The player must move their king to safety or block the check with one of their pieces.
- Checkmate: When a player's king is in check and there's no way to escape the check, it's checkmated and the game is over.

Let me tell you about the life story of Garry Kasparov, widely considered one of the greatest chess champions of all time:

*Early Life*

Garry Kasparov was born on April 13, 1963, in Baku, Azerbaijan, to a Jewish father and an Armenian mother. He learned chess at age 6 and quickly demonstrated exceptional talent.

*Rise to Fame*

Kasparov's aggressive playing style and exceptional endgame skills earned him the nickname "The Beast." He became a grandmaster at 17 and challenged Anatoly Karpov for the World Chess Championship in 1984.

*World Champion*

Kasparov defeated Karpov in 1985, becoming the youngest world champion at 22. He dominated chess for over two decades, successfully defending his title five times.

*Rivalry with Karpov*

Kasparov's rivalry with Karpov is legendary. Their matches were intense, with Kasparov's creative play pitted against Karpov's strategic style.

*IBM's Deep Blue*

In 1997, Kasparov faced IBM's supercomputer Deep Blue, which eventually defeated him in a six-game match. This marked the first time a computer had beaten a world champion.

*Retirement and Activism*

Kasparov retired from professional chess in 2005. He became a vocal critic of Vladimir Putin's regime in Russia and was arrested several times for his activism.

*Legacy*

Kasparov's legacy extends beyond chess. He's written extensively on politics, history, and artificial intelligence. His memoir, "How Life Imitates Chess," explores the connections between chess and life strategy.

Other notable chess champions include:

- Bobby Fischer (USA): 11th World Chess Champion, known for his match against Boris Spassky during the Cold War.
- Emanuel Lasker (Germany): Mathematician and philosopher who held the title from 1894 to 1921.
- Viswanathan Anand (India): 5-time World Chess Champion, known for his creative playing style.