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Sudoku Solution Path

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R4C5 is the only square in row 4 that can be <2>
R5C9 is the only square in row 5 that can be <9>
R8C7 is the only square in row 8 that can be <8>
R8C2 is the only square in row 8 that can be <3>
Intersection of row 1 with block 3. The value <1> only appears in one or more of squares R1C7, R1C8 and R1C9 of row 1. These squares are the ones that intersect with block 3. Thus, the other (non-intersecting) squares of block 3 cannot contain this value.
   R2C8 - removing <1> from <1235> leaving <235>
   R2C9 - removing <1> from <1356> leaving <356>
Intersection of row 2 with block 3. The value <5> only appears in one or more of squares R2C7, R2C8 and R2C9 of row 2. These squares are the ones that intersect with block 3. Thus, the other (non-intersecting) squares of block 3 cannot contain this value.
   R3C7 - removing <5> from <3457> leaving <347>
   R3C8 - removing <5> from <3457> leaving <347>
Intersection of row 8 with block 8. The value <4> only appears in one or more of squares R8C4, R8C5 and R8C6 of row 8. These squares are the ones that intersect with block 8. Thus, the other (non-intersecting) squares of block 8 cannot contain this value.
   R7C4 - removing <4> from <459> leaving <59>
   R7C5 - removing <4> from <149> leaving <19>
Intersection of row 9 with block 7. The values <79> only appears in one or more of squares R9C1, R9C2 and R9C3 of row 9. These squares are the ones that intersect with block 7. Thus, the other (non-intersecting) squares of block 7 cannot contain these values.
   R7C2 - removing <9> from <149> leaving <14>
   R7C3 - removing <9> from <249> leaving <24>
Intersection of column 2 with block 7. The value <4> only appears in one or more of squares R7C2, R8C2 and R9C2 of column 2. These squares are the ones that intersect with block 7. Thus, the other (non-intersecting) squares of block 7 cannot contain this value.
   R7C3 - removing <4> from <24> leaving <2>
   R9C3 - removing <4> from <24679> leaving <2679>
R2C8 is the only square in row 2 that can be <2>
R1C1 is the only square in row 1 that can be <2>
R2C9 is the only square in row 2 that can be <5>
R9C9 can only be <1>
R7C9 can only be <3>
R1C9 can only be <6>
R1C2 can only be <9>
R3C5 is the only square in row 3 that can be <9>
R7C5 can only be <1>
R7C2 can only be <4>
R7C8 can only be <5>
R9C2 can only be <6>
R7C4 can only be <9>
R9C8 can only be <4>
R9C1 can only be <7>
R3C2 can only be <5>
R8C1 can only be <1>
R9C7 can only be <2>
R3C1 can only be <6>
R4C2 can only be <1>
R9C3 can only be <9>
R5C1 can only be <5>
R9C6 can only be <5>
R3C6 can only be <3>
R3C8 can only be <7>
R2C5 can only be <6>
R3C7 can only be <4>
R6C8 can only be <3>
R5C6 can only be <8>
R1C8 can only be <1>
R6C6 can only be <6>
R1C7 can only be <3>
R2C4 can only be <8>
R2C6 can only be <1>
R8C5 can only be <4>
R8C6 can only be <2>
R8C4 can only be <6>
R6C5 can only be <7>
R1C3 can only be <8>
R2C3 can only be <3>
R1C4 can only be <7>
R6C3 can only be <4>
R6C7 can only be <5>
R5C5 can only be <3>
R4C4 can only be <5>
R5C4 can only be <4>
R4C7 can only be <7>
R4C3 can only be <6>
R5C7 can only be <1>
R5C3 can only be <7>


 

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