skip to main content




Daily Sudoku Answer 



BrainBashers doesn't show adverts, and I continue to depend on the ongoing support from everyone who enjoys the site.

Please consider supporting BrainBashers [hide]
Loading

X

Loading

Aug 05 - Very Hard
Puzzle Copyright © Kevin Stone

Share link – www.brainbashers.com/s044274



Reasoning 



R1C6 can only be <2>

R5C9 can only be <8>

R1C7 is the only square in row 1 that can be <8>

R4C7 is the only square in row 4 that can be <4>

R8C1 is the only square in column 1 that can be <8>

R5C1 is the only square in column 1 that can be <9>

R4C5 is the only square in row 4 that can be <9>

R9C6 is the only square in column 6 that can be <6>

R9C5 is the only square in row 9 that can be <8>

R3C9 is the only square in column 9 that can be <4>

Squares R4C6 and R6C6 in block 5 form a simple naked pair. These 2 squares both contain the 2 possibilities <58>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the block.

R6C5 - removing <5> from <12357> leaving <1237>

Intersection of row 1 with block 1. The values <59> only appears in one or more of squares R1C1, R1C2 and R1C3 of row 1. These squares are the ones that intersect with block 1. Thus, the other (non-intersecting) squares of block 1 cannot contain these values.

R2C3 - removing <5> from <1235> leaving <123>

Intersection of column 1 with block 1. The value <3> only appears in one or more of squares R1C1, R2C1 and R3C1 of column 1. These squares are the ones that intersect with block 1. Thus, the other (non-intersecting) squares of block 1 cannot contain this value.

R1C3 - removing <3> from <1359> leaving <159>

R2C3 - removing <3> from <123> leaving <12>

R3C3 - removing <3> from <137> leaving <17>

Intersection of column 8 with block 6. The value <6> only appears in one or more of squares R4C8, R5C8 and R6C8 of column 8. These squares are the ones that intersect with block 6. Thus, the other (non-intersecting) squares of block 6 cannot contain this value.

R6C7 - removing <6> from <1367> leaving <137>

Squares R4C2<57>, R5C3<27> and R6C2<257> in block 4 form a comprehensive naked triplet. These 3 squares can only contain the 3 possibilities <257>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the block.

R4C3 - removing <57> from <5678> leaving <68>

R6C3 - removing <257> from <25678> leaving <68>

R1C3 is the only square in column 3 that can be <5>

R1C2 can only be <9>

Squares R7C1 and R9C2 in block 7 form a simple naked pair. These 2 squares both contain the 2 possibilities <27>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the block.

R7C3 - removing <27> from <247> leaving <4>

R8C3 - removing <7> from <379> leaving <39>

R9C3 - removing <27> from <23479> leaving <349>

R9C4 is the only square in row 9 that can be <4>

R1C5 is the only square in row 1 that can be <4>

Squares R7C5 and R8C5 in column 5 form a simple naked pair. These 2 squares both contain the 2 possibilities <57>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the column.

R5C5 - removing <7> from <127> leaving <12>

R6C5 - removing <7> from <1237> leaving <123>

Squares R1C4 and R6C4 in column 4 and R1C8 and R6C8 in column 8 form a Simple X-Wing pattern on possibility <1>. All other instances of this possibility in rows 1 and 6 can be removed.

R6C5 - removing <1> from <123> leaving <23>

R6C7 - removing <1> from <137> leaving <37>

Squares R1C4 and R1C8 in row 1 and R4C4 and R4C8 in row 4 form a Simple X-Wing pattern on possibility <3>. All other instances of this possibility in columns 4 and 8 can be removed.

R6C4 - removing <3> from <137> leaving <17>

R6C8 - removing <3> from <1367> leaving <167>

R9C8 - removing <3> from <37> leaving <7>

R9C2 can only be <2>

R7C1 can only be <7>

R7C5 can only be <5>

R3C1 can only be <3>

R7C9 can only be <6>

R8C5 can only be <7>

R7C7 can only be <2>

R2C1 can only be <2>

R2C3 can only be <1>

R3C3 can only be <7>

R5C3 can only be <2>

R5C5 can only be <1>

R5C7 can only be <7>

R3C5 can only be <6>

R6C4 can only be <7>

R6C7 can only be <3>

R6C2 can only be <5>

R4C4 can only be <3>

R6C5 can only be <2>

R9C7 can only be <9>

R4C8 can only be <6>

R9C3 can only be <3>

R8C7 can only be <5>

R3C7 can only be <1>

R2C5 can only be <3>

R1C8 can only be <3>

R1C4 can only be <1>

R4C3 can only be <8>

R6C8 can only be <1>

R6C6 can only be <8>

R4C2 can only be <7>

R6C3 can only be <6>

R4C6 can only be <5>

R8C9 can only be <3>

R2C7 can only be <6>

R8C3 can only be <9>

R2C9 can only be <5>



Today's Sudoku Puzzles 



All daily items change at midnight GMT – set your local time zone.

Note: BrainBashers has a Dark Mode setting.