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Sudoku - Easy to Expert — Solution #1
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NAKED SINGLE
#1
R3C5 = 4 (only candidate)
NAKED SINGLE
#2
R3C4 = 7 (only candidate)
NAKED SINGLE
#3
R1C6 = 2 (only candidate)
NAKED SINGLE
#4
R1C5 = 6 (only candidate)
NAKED SINGLE
#5
R2C5 = 8 (only candidate)
NAKED SINGLE
#6
R3C1 = 9 (only candidate)
NAKED SINGLE
#7
R3C9 = 5 (only candidate)
NAKED SINGLE
#8
R7C4 = 8 (only candidate)
NAKED SINGLE
#9
R9C4 = 9 (only candidate)
NAKED SINGLE
#10
R4C4 = 4 (only candidate)
HIDDEN SINGLE
#11
R8C1 = 6 (only place for 6 in Row 8)
HIDDEN SINGLE
#12
R9C6 = 7 (only place for 7 in Col 6)
HIDDEN SINGLE
#13
R6C8 = 2 (only place for 2 in Col 8)
HIDDEN SINGLE
#14
R4C5 = 2 (only place for 2 in Row 4)
HIDDEN SINGLE
#15
R6C5 = 9 (only place for 9 in Col 5)
HIDDEN SINGLE
#16
R5C8 = 5 (only place for 5 in Col 8)
NAKED SINGLE
#17
R5C6 = 1 (only candidate)
HIDDEN SINGLE
#18
R7C9 = 2 (only place for 2 in Col 9)
HIDDEN SINGLE
#19
R8C9 = 8 (only place for 8 in Col 9)
HIDDEN SINGLE
#20
R8C8 = 1 (only place for 1 in Row 8)
NAKED SINGLE
#21
R9C7 = 4 (only candidate)
NAKED SINGLE
#22
R7C7 = 7 (only candidate)
NAKED SINGLE
#23
R6C7 = 6 (only candidate)
NAKED SINGLE
#24
R6C4 = 3 (only candidate)
NAKED SINGLE
#25
R5C4 = 6 (only candidate)
NAKED SINGLE
#26
R9C3 = 5 (only candidate)
NAKED SINGLE
#27
R9C5 = 1 (only candidate)
NAKED SINGLE
#28
R7C5 = 5 (only candidate)
HIDDEN SINGLE
#29
R2C9 = 6 (only place for 6 in Row 2)
HIDDEN SINGLE
#30
R2C7 = 1 (only place for 1 in Row 2)
NAKED SINGLE
#31
R4C7 = 9 (only candidate)
NAKED SINGLE
#32
R1C7 = 3 (only candidate)
NAKED SINGLE
#33
R4C3 = 7 (only candidate)
NAKED SINGLE
#34
R4C1 = 8 (only candidate)
NAKED SINGLE
#35
R4C6 = 5 (only candidate)
NAKED SINGLE
#36
R4C9 = 1 (only candidate)
NAKED SINGLE
#37
R5C9 = 4 (only candidate)
NAKED SINGLE
#38
R5C1 = 3 (only candidate)
NAKED SINGLE
#39
R5C2 = 9 (only candidate)
NAKED SINGLE
#40
R6C1 = 4 (only candidate)
NAKED SINGLE
#41
R6C2 = 5 (only candidate)
NAKED SINGLE
#42
R6C6 = 8 (only candidate)
NAKED SINGLE
#43
R6C9 = 7 (only candidate)
NAKED SINGLE
#44
R1C9 = 9 (only candidate)
NAKED SINGLE
#45
R7C1 = 1 (only candidate)
NAKED SINGLE
#46
R8C2 = 7 (only candidate)
NAKED SINGLE
#47
R1C2 = 4 (only candidate)
NAKED SINGLE
#48
R1C8 = 7 (only candidate)
NAKED SINGLE
#49
R2C3 = 3 (only candidate)
NAKED SINGLE
#50
R2C2 = 2 (only candidate)
NAKED SINGLE
#51
R2C1 = 7 (only candidate)
NAKED SINGLE
#52
R2C8 = 4 (only candidate)
NAKED SINGLE
#53
R7C2 = 3 (only candidate)
NAKED SINGLE
#54
R7C3 = 4 (only candidate)
NAKED SINGLE
#55
R8C3 = 9 (only candidate)
NAKED SINGLE
#56
R9C1 = 2 (only candidate)
NAKED SINGLE
#57
R9C2 = 8 (only candidate)