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Sudoku: # Date: 11/24/2009   Rating:
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7
8
5
6
5
8
2
8
1
4
3
3
9
7
5
4
8
2
6
1
4
2
8
5
7
3
1
5
6
2
3
7
8
9
4
3
1
9
2
9
7
2
6
8
1
5
6
4
2
3
9


     




Solution so far
713248569
645179283
289356417
397461825
428593671
156782934
531624798
972815346
864937152
Started with 20 numbers. Found 81.
Status: Solved Time: 7.05s
Used 26 guesses. ( 0 bad guesses. )
Edit


61) 8, 9=5 Only place in row that 5 can go
60) 9, 9=2 Only place in row that 2 can go
59) 9, 4=5 Only place in row that 5 can go
58) 8, 4=2 Guess 2 from 25 (cycle 57)
57) 8, 5=7 Only place in row that 7 can go
56) 9, 5=1 Only place in row that 1 can go
55) 9, 3=7 Only place in row that 7 can go
54) 8, 3=1 Guess 1 from 17 (cycle 53)
53) 9, 8=6 Only place in row that 6 can go
52) 8, 8=4 Only place in row that 4 can go
51) 9, 6=4 Only place in row that 4 can go
50) 8, 6=3 Only place in row that 3 can go
49) 9, 2=3 Only place in row that 3 can go
48) 8, 2=8 Only place in row that 8 can go
47) 9, 7=8 Only place in row that 8 can go
46) 8, 7=9 Only place in row that 9 can go
45) 9, 1=9 Only place in row that 9 can go
44) 8, 1=6 Guess 6 from 69 (cycle 43)
43) 7, 8=3 Only place in column that 3 can go
42) 7, 6=9 Only place in column that 9 can go
41) 7, 7=7 Only place in row that 7 can go
40) 7, 5=6 Guess 6 from 67 (cycle 39)
39) 7, 3=4 Guess 4 from 47 (cycle 38)
38) 7, 9=1 Only number this square can be.
37) 7, 4=8 Only number this square can be.
36) 7, 2=2 Guess 2 from 238 (cycle 35)
35) 7, 1=5 Guess 5 from 569 (cycle 34)
34) 6, 8=5 Only place in column that 5 can go
33) 6, 9=7 Only place in column that 7 can go
32) 6, 7=4 Guess 4 from 47 (cycle 31)
31) 6, 5=3 Only place in column that 3 can go
30) 6, 6=2 Only place in column that 2 can go
29) 6, 4=1 Guess 1 from 12 (cycle 28)
28) 6, 2=9 Only place in column that 9 can go
27) 6, 1=8 Guess 8 from 89 (cycle 26)
26) 5, 9=3 Only place in column that 3 can go
25) 5, 8=1 Guess 1 from 13 (cycle 24)
24) 5, 5=9 Only place in column that 9 can go
23) 5, 6=8 Only place in column that 8 can go
22) 5, 4=6 Guess 6 from 68 (cycle 21)
21) 6, 3=6 Only number this square can be.
20) 5, 3=5 Guess 5 from 56 (cycle 19)
19) 5, 7=2 Only number this square can be.
18) 5, 2=7 Guess 7 from 789 (cycle 17)
17) 5, 1=4 Guess 4 from 45689 (cycle 16)
16) 4, 8=8 Only place in column that 8 can go
15) 4, 7=6 Guess 6 from 68 (cycle 14)
14) 4, 9=9 Only number this square can be.
13) 4, 6=7 Guess 7 from 789 (cycle 12)
12) 4, 5=5 Guess 5 from 5679 (cycle 11)
11) 4, 4=4 Guess 4 from 4568 (cycle 10)
10) 4, 3=3 Guess 3 from 34567 (cycle 9)
9) 4, 2=1 Guess 1 from 13789 (cycle 8)
8) 4, 1=2 Guess 2 from 245689 (cycle 7)
7) 3, 3=9 Only place in column that 9 can go
6) 3, 2=5 Guess 5 from 59 (cycle 5)
5) 3, 1=3 Guess 3 from 359 (cycle 4)
4) 2, 2=4 Only place in column that 4 can go
3) 2, 1=1 Guess 1 from 14 (cycle 2)
2) 1, 9=8 Only place in column that 8 can go
1) 1, 7=5 Guess 5 from 58 (cycle 0)