Sudoku #h871

Sudoku game, level: Hard #871. This Sudoku have 23 given numbers (clues)..
Structure: 9 (1 pcs.), 7 (2 pcs.), 8 (2 pcs.), 3 (2 pcs.), 6 (3 pcs.), 5 (3 pcs.), 1 (3 pcs.), 4 (3 pcs.), 2 (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  
6
4
1
5
2
4
8
1
3
4
7
2
6
6
3
5
2
8
2
5
1
7
9
Without keyboard:
Check Sudoku rules:
Show/Hide notes:
Highlight:
Restart:
Auto Fill notes:
HINT:
Compare to result:
Show Result: