Hotfix
A daily classic Sudoku logic puzzle.
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Hotfix
Today's board is on its way.
Today's board
Time 0:00
- 7 Given: a patched digit
- 12 Pencil: your candidates
- ! Red: a repeat in a line or rack
Tap a cell, then a digit. Keys: arrows move, 1 to 9 enter, 0 or Backspace clear, P pencil, U undo, Enter checks.
Tap a cell, then a digit on the pad.
Deploy the patch to file your time.
Next hotfix at midnight UTC.
How everyone did today appears here once 20 players have finished.
0Played
0Deployed
0Win %
0Streak
0Best streak
0No hint
Best times: none yet.
Today's card shows the grid with its racks and given digits only, your time band, streak and the days to launch; a card for an earlier day shows that day's digits. Never today's answer.
Roll the patch out to an imagined server room: every digit 1 to 9 once in every server row, region column and 3×3 rack. A medium 9×9 on weekdays, the harder "Patch Tuesday crunch" 9×9 at the weekend, a 6×6 warm-up, an on-page number pad, pencil marks, live rule checks, one hint, a streak, personal bests and a spoiler-free result to share. A fan puzzle about an imagined server room, never a real outage.
How to play
The grid is an imagined server room: nine servers in rows, nine regions in columns, nine racks of 3×3. Fill it with 1 to 9 so that every digit appears exactly once in every server, every region and every rack. Tap a cell, then a digit on the pad; switch to pencil to jot candidates in the corner, and a placed digit sweeps that candidate from its server, region and rack. A repeated digit turns red, and the checks only ever look at the rules, never at the answer. Undo and Clear all are there when a rack goes wrong. Every board is checked when the site is built by a solver that runs the same techniques you use (naked and hidden singles, then naked and hidden pairs, pointing and claiming between a rack and a line) and then tries the rest, so each has exactly one answer; the warm-ups and the weekday boards fall to singles alone, and the weekend boards are sparser and may need one pair or rack-line step, but never trial and error. The givens sit in a half-turn symmetry, as in the classic.
Everyone gets the same board on the same UTC day: a medium 9×9 on weekdays, the harder Patch Tuesday crunch at the weekend, and newcomers can switch on the 6×6 warm-up, which still counts. One hint a day places one digit the techniques force, says which technique, and marks the result as assisted. When the last cell fills and every unit holds 1 to 9 once, the status lights go green rack by rack and the release lead signs off with your time; Give up shows the answer and ends the day without a deploy. The archive lets you play any earlier day's board and practice boards come from a spare pool; both are marked and never count. Hotfix is a fan puzzle about an imagined server room: nothing here is a server, a region, a patch, a status figure or an asset from GTA 6, the racks are abstract squares and never a logo, nothing comes from a leak, and nothing is presented as official. For more deduction try the Load Balancer, the Load Order and the Failover.
Questions
What are the rules?
Classic Sudoku on an imagined server room. Fill the 9×9 grid so that every digit 1 to 9 appears exactly once in every row (a server), every column (a region) and every 3×3 rack; some digits are given. The 6×6 warm-up uses 1 to 6 with 2×3 racks. Every board here has exactly one answer.
How do I enter a digit?
Tap a cell, then tap a digit on the pad under or beside the grid; no phone keyboard ever opens. Tap ✎ pencil to switch to pencil marks: digits then toggle small candidate notes in the corner of the cell instead, and placing a digit later sweeps that candidate from its server, region and rack (a setting, on by default). ⌫ clears the cell. The selected cell's server, region and rack are tinted and every copy of its digit is highlighted. On a keyboard the arrows move, 1 to 9 enter, 0 or Backspace clear, P toggles pencil, U undoes, Enter checks, Escape drops the focus. Undo takes back the last change; Clear all empties the grid but keeps the given digits.
What do the highlights mean?
A digit turns red when it already sits in the same server, region or rack. The checks only ever look at the rules, never at the answer. One hint a day places one digit a named technique forces and says which in words ("server 4, region 6 can only take a 7: naked single"; "in rack 2 the 5 must go in server 1, region 6: hidden single"), and marks the result as assisted. Give up shows the answer and ends the day without a deploy.
What is the warm-up?
A 6×6 grid with 2×3 racks for newcomers, switched on with the Warm-up toggle (remembered on this device). Every warm-up falls to singles alone. It counts as the day's solve; the 9×9 boards are what the best times are about.
Is this a real outage or a real server?
No. Hotfix is a fan logic puzzle about an imagined server room in an imagined status office. Nothing here is a server, a region, a patch note, a status figure or an asset from the game or its services, the racks are abstract squares and never a logo, nothing comes from a leak, and nothing is presented as official. For the real launch-day status picture, see the status page and the readiness guides on this site.
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