Crossmath Challenge invites you to a rapid-fire numerical puzzle. Your goal is to drag number tiles onto a crossword-shaped board, filling it so that every horizontal and vertical line forms a correct mathematical equation. The rules are easy to grasp within moments, but mastering the layout requires careful planning and quick thinking. With each move, you balance the needs of across and down clues, all under the pressure of a brisk pace. It's a deceptively simple premise that grows more demanding as you progress, offering a satisfying blend of arithmetic and logic for puzzle fans.