Picross is a logic-based puzzle game where players fill in squares on a grid to reveal a hidden picture. Each row and column has numbers that indicate how many consecutive squares should be filled. The challenge lies in deducing the correct pattern based on these clues. Players use a process of elimination to determine which squares to fill and which to leave blank. Picross puzzles vary in size and complexity, making them suitable for both beginners and experienced players. The game encourages critical thinking and problem-solving skills while providing a satisfying visual reward upon completion.