Straights Game
no repeats — every compartment a straight

Play Straights — Number Logic Puzzle

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Tap a square, then a number✎ notesCompartments light up

How to play Straights

The grid has white squares and black squares. Fill every white square with a number from 1 to the grid size.

No number may repeat in a row or a column — and a number shown in a black square counts too, so it can’t appear elsewhere in its row or column.

A compartment is a run of white squares across or down, ended by black squares or the edge. Each compartment must hold a straight: consecutive numbers such as 3, 4, 5 — in any order. Two-square compartments are pairs like 6-7; a single square can be any number.

How to play Straights

Fill white cells so no digit repeats in a row or column, and each white compartment forms a straight — a set of consecutive numbers.

The rules

  1. The grid (usually 9×9, sometimes 6×6) has white and black cells.
  2. Fill white cells with 1–9 (1–6 on a 6×6). No digit repeats in any row or column.
  3. A compartment is an unbroken run of white cells in a row or column. Its digits must form a straight — consecutive numbers in any order, like 4-6-5.
  4. Black cells may show a digit. That digit is blocked: it cannot appear elsewhere in that row or column.

Playing here

  1. Choose a size and a difficulty, then press New Puzzle.
  2. Tap a square, then a number on the pad (or type it). Turn on ✎ notes to pencil in possibilities.
  3. The compartments of the selected square light up, so you can see which runs it belongs to.
  4. Hint explains the next deduction — numbers already used, the runs a compartment can still hold, and sure numbers.

Tips

The full guide, with a worked example and common mistakes: How to play Straights.

Questions

Does a straight have to be in order?

No. 7-5-6 is a valid straight: the digits only need to be consecutive as a set.

What is a blocked digit?

A digit printed in a black cell. It cannot appear in any white cell of that row or column.

How do I list the possible straights?

Use the compartment calculator: set the grid size and compartment length and mark blocked digits.

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