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Hard Sudoku – Sheet 4

Hard: very few clues, for regular solvers.

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Puzzle 1

684
853
9581
35
29183
25
2148
856
621

Puzzle 2

32
35769
523
1654
391
4239
526
69258
76

Puzzle 3

1625
869
7918
38
143
59
6239
187
3687

Puzzle 4

76
235
489
36
974358
51
394
927
63

Puzzle 5

273
69731
86
7234
38
9527
91
29578
786

Puzzle 6

5482
329
26
512
4367
734
13
327
6719
Show the answers

Puzzle 1

716583924
284197653
935462817
493675281
572918346
168234579
321756498
859341762
647829135

Puzzle 2

781963245
234518769
569247138
918726354
375894621
426351897
153482976
692175483
847639512

Puzzle 3

891624375
274583169
635791824
463957218
917842536
528316947
756239481
182475693
349168752

Puzzle 4

736594812
189627435
452138967
315862749
297413586
648759321
563981274
924376158
871245693

Puzzle 5

581267934
697483251
432159786
726398415
153724869
849615327
918572643
264931578
375846192

Puzzle 6

759648132
163572849
284139567
531497628
842356971
976821354
417965283
395284716
628713495

How to play sudoku

Fill the grid so every row, every column and every 3x3 box contains the numbers 1 to 9 with no repeats. Start with the rows and boxes that already have the most numbers.

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