Feb 22 - Hard
Puzzle Copyright © Kevin Stone
Share link:
Reasoning
R5C2 can only be <5>
R8C8 can only be <6>
R7C2 can only be <9>
R7C4 can only be <3>
R5C8 can only be <4>
R2C7 is the only square in row 2 that can be <5>
R3C6 is the only square in row 3 that can be <7>
R6C7 is the only square in row 6 that can be <9>
R7C1 is the only square in row 7 that can be <6>
R9C4 is the only square in column 4 that can be <9>
R8C4 is the only square in column 4 that can be <8>
R3C7 is the only square in column 7 that can be <6>
Squares R2C2 and R2C4 in row 2 form a simple naked pair. These 2 squares both contain the 2 possibilities <14>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the row.
R2C6 - removing <1> from <123> leaving <23>
R2C9 - removing <14> from <1234> leaving <23>
Squares R6C6 and R8C6 in column 6 form a simple naked pair. These 2 squares both contain the 2 possibilities <15>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the column.
R1C6 - removing <1> from <123> leaving <23>
Squares R1C6 and R1C7 in row 1 form a simple naked pair. These 2 squares both contain the 2 possibilities <23>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the row.
R1C1 - removing <2> from <125> leaving <15>
R1C3 - removing <2> from <1245> leaving <145>
R1C5 - removing <23> from <12349> leaving <149>
R1C8 - removing <2> from <289> leaving <89>
R1C9 - removing <23> from <12348> leaving <148>
R3C1 is the only square in block 1 that can be <2>
R3C8 can only be <9>
R1C8 can only be <8>
R4C8 can only be <2>
R4C7 can only be <7>
R5C9 can only be <6>
R5C5 can only be <3>
R6C9 can only be <8>
R6C2 can only be <1>
R5C1 can only be <7>
R6C3 can only be <2>
R6C6 can only be <5>
R2C2 can only be <4>
R4C3 can only be <3>
R6C5 can only be <6>
R8C6 can only be <1>
R9C5 can only be <2>
R9C7 can only be <3>
R7C5 can only be <5>
R9C9 can only be <7>
R1C7 can only be <2>
R7C9 can only be <2>
R1C6 can only be <3>
R2C9 can only be <3>
R2C4 can only be <1>
R9C2 can only be <8>
R4C4 can only be <4>
R3C5 can only be <4>
R2C6 can only be <2>
R3C9 can only be <1>
R1C5 can only be <9>
R4C5 can only be <1>
R1C9 can only be <4>
R4C1 can only be <8>
R8C3 can only be <5>
R7C3 can only be <7>
R8C1 can only be <3>
R1C3 can only be <1>
R9C1 can only be <1>
R1C1 can only be <5>
R9C3 can only be <4>
Today's Sudoku Puzzles
All daily items change at midnight GMT – set your local time zone.
Note: BrainBashers has a Dark Mode option – I recommend not using your browser's dark mode or extensions for BrainBashers