An ordinary sudoku, plus one rule: no digit repeats a chess knight's move away from itself. Rows, columns and boxes still hold 1 to 9 exactly once. Select a square and its knights light up.
About Knight
Knight is a free daily anti-knight sudoku from Mind Loft. Each day gives you a 9×9 grid with one rule added to the usual three: no digit may repeat a chess knight's move away from itself, two squares one way and one square across. Rows, columns, and 3×3 boxes still hold 1 through 9 exactly once, and that fourth constraint does so much of the work that the board can print far fewer digits than an ordinary sudoku needs.
There is no arithmetic and nothing extra drawn on the grid: the whole twist is a shape you already know from chess, and selecting a square lights up the eight squares its knights reach so you never have to picture the L. Every board has a single solution you can always reach by logic, with no guessing, and on every board the knight rule is load-bearing rather than decorative: read as an ordinary sudoku, the same clues would fit more than one grid. Wrong entries are never flagged, so spotting your own slips is part of the puzzle, and a clean solve scores a perfect 10 with the daily leaderboard decided on the clock.
A new board drops every day at midnight Eastern; weekdays print fewer digits as the week goes on, from 28 on Monday down to 16 on Saturday, and the Sunday Edition prints thirteen. No app, no signup, play free in your browser. Want the rest of the family? Try Suds, the classic 9×9, Cages, the killer sudoku, Mercury, the thermo, and Polka, the kropki with no numbers at all.
Knight, in short
How do you play Knight?
An ordinary sudoku plus one rule: a digit may not repeat anywhere a chess knight could jump to it, two squares one way and one square across. Nothing is drawn on the grid, the rule reaches across boxes instead of inside them, and the board prints far fewer digits than a sudoku usually needs.
Is Knight free to play?
Yes. Knight is free to play in your browser on Mind Loft, with no app to install and no account required.
When does a new Knight puzzle come out?
A new Knight arrives every day at midnight Eastern time, and Sundays bring the Sunday Edition, the biggest or hardest board of the week.
What kind of puzzle is Knight?
Knight is a daily sudoku from Mind Loft: the daily anti-knight sudoku. It is part of the daily sudoku lineup.
Can I play past Knight puzzles?
Yes. Every past Knight board is in the puzzle archive, a tap away by day.
What other daily sudoku does Mind Loft have?
Diag, Frame, Rim and Polka, among others. The Sudoku page lists every one, with a new board for each every day.