Navigate a through a grid to clear rows or columns by aligning pieces. Plan moves carefully within a limited number of steps. Solve increasingly complex puzzles to advance through levels. Track progress and improve spatial reasoning skills.
Numbered tiles by sliding rows or columns to merge pairs. Merged tiles double in value and increase score. Perform sequential combos for higher points. Track high scores and challenge others.
Play a grid-based puzzle where the objective is to place following specific rules. Each row, column, and color region must contain exactly one crown, and cannot be placed in adjacent cells.
Solve logic puzzles by filling cells with numbers 1 to N. Ensure no repeated numbers in rows or columns. Use circles with math operations or "E" for even numbers to determine valid cell values. Adjust puzzle difficulty and track progress.
Solve logic puzzles combining and Kakuro rules. Fill 9x9 grids with numbers 1-9 following rules and sum constraints. Use add/subtract calculations to determine cell values. Track progress and complete puzzles of varying difficulty.
Allows users to fill 9×9 grids with numbers 1-9. Tap cells to input numbers. Take notes and use hints. Access unique levels. Track progress and train brain skills.
10 allows players to remove numbers by matching identical pairs or numbers that sum to 10. Pairs can be connected horizontally, vertically, or diagonally through cleared cells.
Play with five overlapping 9x9 grids. Solve puzzles following standard rules. Choose from five difficulty levels and various types like Gattai and Butterfly. Use the Hint feature to auto-fill the board with non-conflicting numbers.
Solve puzzles with additional numbers outside the grid indicating the sum of cells between 1 and 9 in each row and column. Complete puzzles with varying difficulty levels. Track progress and view hints when needed.