Futoshiki
- Developer
- Zarocer
- Published
- Oct 5, 2026
- Technology
- HTML5
- Devices
- PC, Mobile
- Orientation
- Adaptive
- Players
- 1
About the game
A browser adaptation by Zarocer.
Fill a number grid without repeating numbers in a row or column, while respecting every inequality. Choose a difficulty or play the daily puzzle.
Controls
Select a cell and use its number pad or the keyboard. Read the inequality signs between cells, explore candidates, add optional notes, undo entries or reveal a native hint.
Use the whole inequality chain
Read the narrow end of an inequality as the smaller side. In a five-number row, a chain of three increasing cells needs three different increasing values: its first cell cannot be 4 or 5, because two larger values would have to follow. This is a deduction from the constraint, not a hint about a particular generated board.
Combine that bound with the values already present in the row and column. Optional notes record possibilities, but a note is not a confirmed value. Revisit neighboring candidates after placing a number instead of guessing from the inequality alone.
Save and continue
ZAROCER opens this build in English. Saved progress and records stay in this browser when storage is available. Use the native continuation controls after reloading. Clearing site data can remove saves. The portal’s Pause, Theater and Fullscreen controls preserve one game instance.
Explore this game’s guide
Futoshiki gameplay screenshots
