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 9 of 10 · 300 puzzles
← Back to puzzle library6×6 Hard Puzzles
30 puzzles
Mini Sudoku 6x6 #0260
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0259
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0258
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0257
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0256
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0255
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0254
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0253
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0252
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0251
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0250
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0249
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0248
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0247
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0246
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0245
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0244
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0243
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0242
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0241
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0240
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0239
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0238
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0237
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0236
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0235
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0234
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0233
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0232
A hard 6×6 puzzle. One unique solution. Tap to play.
Mini Sudoku 6x6 #0231
A hard 6×6 puzzle. One unique solution. Tap to play.