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Common Answers

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Sudoku Solution Path

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R9C3 is the only square in column 3 that can be <1>
R8C5 is the only square in column 5 that can be <3>
Squares R9C1 and R9C2 in row 9 form a simple locked pair. These 2 squares both contain the 2 possibilities <79>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the row.
   R9C5 - removing <9> from <689> leaving <68>
Squares R5C6 and R6C6 in column 6 form a simple locked pair. These 2 squares both contain the 2 possibilities <89>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the column.
   R2C6 - removing <89> from <24689> leaving <246>
   R7C6 - removing <89> from <4789> leaving <47>
   R8C6 - removing <9> from <4679> leaving <467>
Squares R5C6 and R6C6 in block 5 form a simple locked pair. These 2 squares both contain the 2 possibilities <89>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the block.
   R4C4 - removing <8> from <358> leaving <35>
   R5C4 - removing <89> from <3589> leaving <35>
Squares R4C4 and R5C4 in column 4 form a simple locked pair. These 2 squares both contain the 2 possibilities <35>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the column.
   R3C4 - removing <5> from <145> leaving <14>
Squares R9C1 and R9C2 in block 7 form a simple locked pair. These 2 squares both contain the 2 possibilities <79>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the block.
   R7C1 - removing <79> from <479> leaving <4>
   R8C2 - removing <79> from <24579> leaving <245>
   R8C3 - removing <7> from <257> leaving <25>
R7C6 can only be <7>
R8C7 is the only square in row 8 that can be <7>
R6C7 can only be <4>
R5C2 is the only square in row 5 that can be <4>
R8C4 is the only square in row 8 that can be <9>
R7C9 is the only square in row 7 that can be <9>
R1C9 can only be <6>
R1C8 can only be <1>
R1C7 can only be <9>
R2C7 can only be <2>
R4C7 can only be <6>
R3C9 can only be <3>
R2C8 can only be <4>
R5C7 can only be <1>
R2C4 can only be <8>
R2C6 can only be <6>
R7C4 can only be <1>
R1C5 can only be <5>
R2C2 can only be <7>
R2C5 can only be <9>
R8C6 can only be <4>
R7C5 can only be <8>
R3C4 can only be <4>
R7C8 can only be <2>
R9C5 can only be <6>
R8C8 can only be <6>
R3C6 can only be <2>
R9C8 can only be <8>
R1C2 can only be <8>
R3C5 can only be <1>
R2C3 can only be <3>
R9C2 can only be <9>
R9C1 can only be <7>
R5C1 is the only square in row 5 that can be <6>
R3C1 can only be <5>
R3C2 can only be <6>
R4C1 can only be <3>
R4C4 can only be <5>
R6C1 can only be <9>
R4C2 can only be <2>
R5C4 can only be <3>
R5C8 can only be <5>
R6C8 can only be <3>
R6C6 can only be <8>
R6C9 can only be <7>
R5C6 can only be <9>
R6C3 can only be <5>
R4C9 can only be <8>
R8C2 can only be <5>
R5C3 can only be <8>
R4C3 can only be <7>
R5C9 can only be <2>
R8C3 can only be <2>


 

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