... by: numpl_npm

H79=68 and D3=8 to solution.

... by: numpl_npm

With only basics strategies,

AB3=13 => contradiction
AB3=78 => contradiction
A3=8, B3=1or3
- D3=1or3 => contradiction
- F3=1or3 => contradiction
- D3=4 and F3=6 => contradiction

Then B3=7, and no longer unsolvable.

... by: Frans Goosens

Combination 2-digits cells

A5=1 No solution, Undo calculation
A5=5 No solution, Undo calculation
A6=2 No solution, Undo calculation
A6=4 Wrong, Undo calculation
A6=2 No solution, Fixed
A5=1 Wrong, Undo calculation
A5=5 No solution, Fixed
B3=3 Wrong, Undo calculation
B3=7 ( D6=4 ) Solved,


#321--------------------------Solution
060 700 000-------------961 752 483
400 080 000-------------437 186 952
005 009 010-------------285 439 617

000 060 000-------------128 364 795
009 005 030-------------649 275 138
070 900 004-------------573 918 264

000 003 501-------------796 823 541
000 090 020-------------314 597 826
002 001 300-------------852 641 379

Total solving time is: 86 sec.