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Solution so far
638912457
142576938
795384162
526847391
483129675
917653824
354298716
861735249
279461583
Started with 37 numbers. Found 81.
Status: Solved Time: 3.33s
Used 4 guesses. ( 3 bad guesses. )
   Sanity Check - really solved?  
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44) 3, 9=9 Only place in row that 9 can go
43) 5, 9=6 Only place in row that 6 can go
42) 2, 8=6 Only place in row that 6 can go
41) 6, 8=5 Only place in row that 5 can go
40) 2, 7=5 Only place in row that 5 can go
39) 3, 4=6 Only place in row that 6 can go
38) 2, 4=2 Only place in row that 2 can go
37) 3, 3=5 Only place in row that 5 can go
36) 4, 3=3 Only place in row that 3 can go
35) 8, 2=3 Only place in row that 3 can go
34) 4, 2=5 Only place in row that 5 can go
33) 6, 2=6 Only place in row that 6 can go
32) 8, 3=6 Only place in row that 6 can go
31) 5, 3=8 Only place in row that 8 can go
30) 9, 3=2 Only place in row that 2 can go
29) 3, 2=2 Only place in row that 2 can go
28) 9, 2=8 Only place in row that 8 can go
27) 6, 7=8 Only place in row that 8 can go
26) 5, 7=9 Only place in row that 9 can go
25) 3, 7=4 Only place in row that 4 can go
24) 2, 2=4 Guess 4 from 245
23) 8, 1=5 Only place in row that 5 can go
22) 2, 1=3 Guess 3 from 35 (cycle 21)
21) 5, 6=5 Only place in row that 5 can go
20) 8, 6=2 Only place in row that 2 can go
19) 6, 5=9 Only place in row that 9 can go
18) 5, 5=2 Only place in row that 2 can go
17) 3, 5=3 Only place in row that 3 can go
16) 6, 6=3 Only place in row that 3 can go
15) 7, 3=1 Only place in row that 1 can go
14) 9, 4=1 Only place in row that 1 can go
13) 2, 6=1 Only place in row that 1 can go
12) 7, 6=8 Only place in row that 8 can go
11) 4, 4=8 Only number this square can be.
10) 4, 5=1 Only place in row that 1 can go
9) 7, 5=6 Only place in group that 6 can go.
8) 7, 8=2 Only place in row that 2 can go
7) 9, 8=9 Only place in column that 9 can go
6) 8, 4=9 Only place in column that 9 can go
5) 8, 9=8 Only place in group that 8 can go.
4) 1, 8=8 Only place in column that 8 can go
3) 1, 7=3 Only place in column that 3 can go
2) 1, 6=9 Guess 9 from 39
1) 1, 2=1 Guess 1 from 13 (cycle 0)