Sudoku #h646

Sudoku game, level: Hard #646. This Sudoku have 25 given numbers (clues)..
Structure: 4 (1 pcs.), 2 (2 pcs.), 6 (2 pcs.), 1 (2 pcs.), 7 (3 pcs.), 8 (3 pcs.), 9 (4 pcs.), 5 (4 pcs.), 3 (4 pcs.), ∑25.


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