The Indian Grandmaster Gukesh lost the Game 1 of quarter-finals on Sunday and resigned in the Game 2 after just 18 moves.

The machine could defend its king and reach checkmate, although it could take up to 63 moves, and standard chess rules would call a draw on 50 moves without a capture or pawn move. In 1920 ...

2. The Queen is the most powerful chess piece and can move any number of squares in any direction. 3. The Bishop can move any number of squares diagonally. 4. The Knight moves in an L-shaped ...