KenKen
Fill the grid so each row and column has unique digits – and each cage hits its math target.
Goal: Fill the grid so every row and column contains each digit from 1 to N exactly once (where N is the grid size).
Cages: Groups of cells outlined in bold are called cages. Each cage shows a target number and a math operation (+, –, ×, ÷). The digits in the cage must combine using that operation to reach the target. Single-cell cages simply show the answer.
Operations: For addition (+), the digits add up to the target. For multiplication (×), they multiply to the target. For subtraction (–) and division (÷), the larger number minus or divided by the smaller gives the target.
Select a cell by clicking it, then click a number on the number pad to fill it in.
Pencil mode: Click the Pencil button to toggle pencil mode. In pencil mode, clicking numbers adds or removes small candidate marks – useful for tracking possibilities.
Errors: Duplicate numbers in the same row or column are shown in red.
Undo: Click Undo to reverse your last action. You can undo as many times as you like.
Fill the grid so each row and column has unique digits – and each cage hits its math target.
Match pairs of free tiles to clear the board – a relaxing puzzle of strategy and observation.
Slide the numbered tiles into order by moving them into the empty space.
Fill the grid with digits 1–9 so each run adds up to its clue – like a crossword with numbers.
Slide numbered tiles on a grid to combine them – reach the 2048 tile to win!