Sudoku #m51

Sudoku game, level: Medium #51. This Sudoku have 23 given numbers (clues)..
Structure: 9 (1 pcs.), 5 (1 pcs.), 2 (2 pcs.), 4 (2 pcs.), 7 (3 pcs.), 6 (3 pcs.), 1 (3 pcs.), 8 (4 pcs.), 3 (4 pcs.), ∑23.


Current Time 0:0
Best Time: -:-
1  
2  
3  
4  
5  
6  
7  
8  
9  
DEL  
1  
2  
3  
4  
5  
6  
7  
8  
9  
DEL  
4
1
8
3
7
3
6
8
4
5
6
7
9
3
8
2
1
7
1
8
2
6
3
Without keyboard:
Check Sudoku rules:
Show/Hide notes:
Highlight:
Restart:
Auto Fill notes:
HINT:
Compare to result:
Show Result: