Sudoku #x459

Sudoku game, level: Expert #459. This Sudoku have 23 given numbers (clues)..
Structure: 6 (2 pcs.), 7 (2 pcs.), 1 (2 pcs.), 4 (2 pcs.), 2 (2 pcs.), 3 (2 pcs.), 9 (3 pcs.), 5 (4 pcs.), 8 (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
3
5
1
9
8
6
4
3
6
5
8
2
9
5
8
7
8
5
1
2
9
7
Without keyboard:
Check Sudoku rules:
Show/Hide notes:
Highlight:
Restart:
Auto Fill notes:
HINT:
Compare to result:
Show Result: