The Goal: Place numbers (1–4) onto the 4x4 grid following Sudoku rules—no duplicate numbers in any row, column, or 2x2 corner quadrant.
Line Clears: Complete any row or column to clear it, score points, and earn helpful action cards.
[❄️] Freezing Numbers: Every 5 lines cleared, you'll get to pick one active number on the board to freeze permanently. Frozen numbers stay put even when their row or column is cleared!
[🔒] Locked Barriers: 4 dark red cells block random spaces at the start. Clear lines to unlock them one by one.
Action Cards:
Game Over: If you draw a card that has no legal moves left and you have no action cards to help, it's game over!