Sands Keeper

Dive into the fascinating world of number puzzles! This logic game offers a unique challenge: fill the grid with numbers, adhering to strict rules. Each puzzle is a combination of Sudoku and mathematical operations, where you must not only avoid repetitions in rows and columns but also achieve the specified result within each group of cells.

Game Features
• Endless variety: generates unique puzzles, providing a new challenge every time.
• Adaptive difficulty: the game board size automatically adjusts to your level, from compact grids for beginners to large-scale challenges for experienced players.
• Instant feedback: track your progress in real-time with level indicators, a timer, and filled cells.
• Smart hints: the system automatically highlights errors as you play, helping you quickly find and correct conflicts in rows, columns, or groups.
• Convenient controls: an intuitive number pad for entering values and a separate button for clearing a cell.
• Flexibility: ability to reset the current puzzle or start a new one at any time.
• Progressive level system: each solved puzzle unlocks the next, and your progress is saved between sessions.

Who is this game for?
• For number puzzle enthusiasts looking for a fresh take on the genre and an extra mathematical challenge.
• For those who want to train logical thinking, attention, and mental math skills.
• For players who appreciate a gradual increase in difficulty and the opportunity to progress from simple tasks to more complex ones.
• For those looking for a calm, intellectual game to relax with on the go or during a break, without rush or competitive pressure.
• For beginners: clear rules and a visual error highlighting system will help you quickly get familiar with the game mechanics.

How to Play
• Select an empty cell on the game board.
• Enter a number from the bottom panel.
• Ensure that numbers do not repeat in the same row and column.
• Check that the numbers within each group yield the specified result with the given arithmetic operation.
• Fill the entire board without errors to unlock the next level and continue your adventure!