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# Basic Strategies of Sudoku

by Novel Games
2007-01-26 10:25:27
#1
You can adopt the following two strategies:

1) Find the only possible position of a number in a group, a row or a column, for example:

In the rightmost group, consider the only possible position of the number 9:

Since the number 9 has already appeared in the first two rows, the only possible position of a 9 in this group is the remaining blank in the third row:

2) Find the only possible number that can appear in a blank, for example:

Consider the highlighted blank:

The number cannot be 2, 3, 4 or 5 as these numbers already exist in the same group, and it cannot be 6, 7, 8 or 9 either as these numbers are already in the same row. Therefore, the only possible number is 1:
by Novel Games
2007-01-26 10:25:27
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#2
2669
This is exactly the method that I have used to win this game in 71.12 seconds!
by Piotr Grochowski
2023-07-15 21:01:21
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#3
184
I don’t know this
by GGY GTse (GEORGETSETHLHK1)
2023-08-20 15:40:07
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#4
184
@Novel Games There is a problem of this sudoku.
I try to not use power ups if I just write wrong numbers on 15 seconds it says I finished and collected 42 coins…
by GGY GTse (GEORGETSETHLHK1)
2023-08-28 18:11:26
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#5
In reply to #4:
@GGY GTse , thank you for reporting the problem, it is now fixed.
by Novel Games
2023-09-01 11:29:37
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