Sixes (Mind Loft)
A 6x6 sudoku a day: fill every row, column and box with 1 to 6.
Every day: One 6x6 mini sudoku a day, the same for every player, with boxes two squares tall and three wide and one logical solution. Sundays bring a harder edition. The daily leaderboard is a race on the clock. New puzzle: Midnight US Eastern Time.

Sixes is a free daily mini sudoku from Mind Loft. The 6x6 grid is split into six boxes two squares tall and three wide, and every row, column and box must hold 1 to 6 once. It takes a couple of minutes, and the leaderboard is a straight race on time.
About Sixes (Mind Loft)
Sixes is the mini sudoku on Mind Loft, a free site of daily browser games. Each day there is one 6x6 grid with a few printed digits. Fill in the rest so that every row, every column and every box holds the digits 1 to 6 exactly once. The boxes are the six blocks two squares tall and three wide, marked by heavy lines.
It is the short one in Mind Loft's sudoku family. A full 9x9 is something you sit down with; a mini takes a couple of minutes. Because of that, nothing is counted against you and the daily leaderboard is decided purely on time. Every grid has a single solution that can be reached by logic, without guessing. Wrong entries are not flagged, so you need to catch your own slips.
The controls match the other Mind Loft sudokus: tap a square then a number or the other way round, with notes, auto-move, undo, erase, clear and a hint, and a counter under each digit showing how many are left to place.
A new grid goes up at midnight US Eastern Time, and the Sunday Edition is harder. For the full size, Mind Loft points to Suds (classic 9x9), Quilt (jigsaw) and Cages (killer).
How to play Sixes (Mind Loft)
- Open mindloftdaily.com/sixes and press Start to show the day's grid; the clock starts.
- Fill every row and column with 1 to 6 once each.
- Fill every box (two squares tall, three wide) with 1 to 6 once each.
- Tap a square then a number, or pick a number then tap squares.
- Finish as fast as you can; your time sets your place on the leaderboard.
Screenshots

Tips
- With only six digits, a row with four filled often needs just a glance at the columns to finish.
- Scan each digit across the boxes in turn; in a 6x6 a single digit often has only one place left.
- Wrong entries are not flagged, so look over the grid once before the last digit.
- Turn off notes for speed once you are comfortable; most minis need few candidates.
Questions
How big are the boxes in Sixes?
Each of the six boxes is two squares tall and three squares wide.
How is Sixes scored?
By time. Nothing else counts against you, so the leaderboard is a race on the clock.
Is Sixes free?
Yes. Sixes runs in the browser on mindloftdaily.com at no cost. There is no app and no account to make; entering a display name only puts your result on the daily leaderboard.
When does a new Sixes come out?
Every day at midnight US Eastern Time, with the same grid for every player. Sundays bring a harder edition.
Can I play old Sixes grids?
Yes. Mind Loft keeps past days in its puzzle archive, together with each day's standings.
Games like Sixes (Mind Loft)

Daily 6x6 Mini Sudoku (SudokuWiki)
A daily 6x6 sudoku, the same size and rules

Mini Sudoku
A quick daily mini sudoku

Mini Sudoku (Daily Mail)
Another daily 6x6 mini sudoku

Quilt (Mind Loft)
Mind Loft's jigsaw sudoku, named on the Sixes page for the full size

Sando (Mind Loft)
Mind Loft's sandwich sudoku from the same family

Daily Sudoku
One classic 9x9 a day for when you want the full grid

Mercury (Mind Loft)
A daily sudoku with thermometers: digits rise from each bulb to its tip.

Polka (Mind Loft)
A sudoku with no printed digits: only white and black dots between squares.