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Sudoku Solution Path

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R5C5 is the only square in row 5 that can be <6>
R5C4 is the only square in row 5 that can be <5>
R5C6 is the only square in row 5 that can be <7>
R5C1 is the only square in row 5 that can be <3>
R8C9 is the only square in row 8 that can be <3>
R8C5 is the only square in row 8 that can be <7>
R1C4 is the only square in row 1 that can be <7>
R9C5 is the only square in row 9 that can be <5>
R7C2 is the only square in row 7 that can be <5>
R2C1 is the only square in row 2 that can be <5>
R7C5 is the only square in row 7 that can be <1>
R9C4 is the only square in block 8 that can be <9>
Squares R8C6 and R9C6 in column 6 form a simple locked pair. These 2 squares both contain the 2 possibilities <24>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the column.
   R1C6 - removing <2> from <1238> leaving <138>
   R4C6 - removing <2> from <1238> leaving <138>
   R6C6 - removing <24> from <1248> leaving <18>
Intersection of row 2 with block 2. The value <4> only appears in one or more of squares R2C4, R2C5 and R2C6 of row 2. These squares are the ones that intersect with block 2. Thus, the other (non-intersecting) squares of block 2 cannot contain this value.
   R3C5 - removing <4> from <348> leaving <38>
Intersection of row 4 with block 5. The values <13> only appears in one or more of squares R4C4, R4C5 and R4C6 of row 4. These squares are the ones that intersect with block 5. Thus, the other (non-intersecting) squares of block 5 cannot contain these values.
   R6C4 - removing <1> from <124> leaving <24>
   R6C6 - removing <1> from <18> leaving <8>
R4C3 is the only square in row 4 that can be <8>
R5C2 can only be <9>
R8C2 can only be <1>
R4C1 can only be <2>
R2C2 can only be <8>
R4C4 can only be <1>
R4C6 can only be <3>
R4C5 can only be <9>
R1C6 can only be <1>
R1C1 can only be <9>
R1C3 can only be <3>
R8C1 can only be <4>
R3C3 can only be <4>
R3C1 can only be <1>
R8C6 can only be <2>
R9C6 can only be <4>
R7C9 is the only square in row 7 that can be <4>
R6C9 is the only square in column 9 that can be <9>
R6C7 is the only square in row 6 that can be <1>
R2C9 is the only square in row 2 that can be <1>
Squares R6C4, R6C5, R2C4 and R2C5 form a Type-1 Unique Rectangle on <24>.
   R2C5 - removing <24> from <234> leaving <3>
R3C5 can only be <8>
R3C8 can only be <9>
R1C5 can only be <2>
R3C7 can only be <3>
R8C8 can only be <6>
R8C3 can only be <9>
R2C8 can only be <2>
R1C7 can only be <8>
R6C5 can only be <4>
R2C4 can only be <4>
R9C7 can only be <2>
R6C4 can only be <2>
R2C7 can only be <6>
R5C8 can only be <8>
R5C9 can only be <2>
R9C9 can only be <8>
R7C3 can only be <2>
R9C3 can only be <6>
R7C7 can only be <9>


 

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