Number games
Krono-Matrix
Set the numbers so every row, column and diagonal reaches its target. Thirty levels, one solution each.
- 6–25 min
- Single player
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How to play
- Pick a cell, then a number. Rows and columns must add up to the target beside them.
- From level 7 arrows carry flow: east and south add, west and north subtract. Gaps split a line, diagonals get targets, and from level 19 an arrow also adds its number to the cell it points at.
- Filled tiles are your clues. A target shows a tick when it is met and a triangle when it is too high.
Controls
Tap a cell, then a number key. The turn button or R rotates an arrow. Arrows move, 1–9 type, L locks a cell, Z undoes, Y redoes, H hints.
About this game
Free 30-level number-balance puzzle, from a 4×4 of plain sums to a 7×7 master grid. Rows and columns must add up to their targets. Later levels add arrows whose flow counts east and south as plus and west and north as minus, gaps that cut a line into parts with sums of their own, diagonal targets, and a pulse rule where an arrow adds its number to the cell it points at. An exact solver checks every board: each has one winning layout, so a hint is always right and par is the true minimum number of moves. Three stars need par without a hint.
- Levels
- 30, 4×4 to 7×7
- Solution
- One per board, solver-checked
- Extra
- Undo, hint, lock
