Hard Mini Sudoku Puzzles
Hard Mini Sudoku puzzles are built for slower solves, cleaner pencil marks, and more careful region-by-region logic.
These boards are where pairs, locked candidates, and patient scanning matter most, especially on 8×8 and 10×10 grids.
Page 10 of 10 · 300 puzzles
← Back to puzzle library6×6 Hard Puzzles
30 puzzles
Mini Sudoku 6x6 #0230
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0229
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0228
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0227
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0226
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0225
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0224
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0223
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0222
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0221
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0220
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0219
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0218
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0217
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0216
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0215
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0214
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0213
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0212
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0211
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0210
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0209
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0208
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0207
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0206
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0205
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0204
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0203
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0004
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0003
A hard 6×6 puzzle. One unique solution. Tap to play.