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 7 of 10 · 300 puzzles
← Back to puzzle library6×6 Hard Puzzles
10 puzzles
Mini Sudoku 6x6 #0300
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0299
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0298
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0297
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0296
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0295
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0294
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0293
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0292
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0291
A hard 6×6 puzzle. One unique solution. Tap to play.
8×8 Hard Puzzles
20 puzzles
Mini Sudoku 8x8 #0220
A hard 8×8 puzzle. One unique solution. Tap to play.
Mini Sudoku 8x8 #0219
A hard 8×8 puzzle. One unique solution. Tap to play.
Mini Sudoku 8x8 #0218
A hard 8×8 puzzle. One unique solution. Tap to play.
Mini Sudoku 8x8 #0217
A hard 8×8 puzzle. One unique solution. Tap to play.
Mini Sudoku 8x8 #0216
A hard 8×8 puzzle. One unique solution. Tap to play.
Mini Sudoku 8x8 #0215
A hard 8×8 puzzle. One unique solution. Tap to play.
Mini Sudoku 8x8 #0214
A hard 8×8 puzzle. One unique solution. Tap to play.
Mini Sudoku 8x8 #0213
A hard 8×8 puzzle. One unique solution. Tap to play.
Mini Sudoku 8x8 #0212
A hard 8×8 puzzle. One unique solution. Tap to play.
Mini Sudoku 8x8 #0211
A hard 8×8 puzzle. One unique solution. Tap to play.
Mini Sudoku 8x8 #0210
A hard 8×8 puzzle. One unique solution. Tap to play.
Mini Sudoku 8x8 #0209
A hard 8×8 puzzle. One unique solution. Tap to play.
Mini Sudoku 8x8 #0208
A hard 8×8 puzzle. One unique solution. Tap to play.
Mini Sudoku 8x8 #0207
A hard 8×8 puzzle. One unique solution. Tap to play.
Mini Sudoku 8x8 #0206
A hard 8×8 puzzle. One unique solution. Tap to play.
Mini Sudoku 8x8 #0205
A hard 8×8 puzzle. One unique solution. Tap to play.
Mini Sudoku 8x8 #0204
A hard 8×8 puzzle. One unique solution. Tap to play.
Mini Sudoku 8x8 #0203
A hard 8×8 puzzle. One unique solution. Tap to play.
Mini Sudoku 8x8 #0202
A hard 8×8 puzzle. One unique solution. Tap to play.
Mini Sudoku 8x8 #0201
A hard 8×8 puzzle. One unique solution. Tap to play.