... by: Frans Goosens

#589

Combination A2=138 and I9=139

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A2=1 I9=1 Wrong, Undo calculation

All reset to initial position

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A2=1 I9=3 Wrong, Undo calculation

All reset to initial position

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A2=1 I9=9 Wrong, Undo calculation

All reset to initial position

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A2=3 I9=1 Wrong, Undo calculation

All reset to initial position

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A2=3 I9=3 Wrong, Undo calculation

All reset to initial position

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A2=3 I9=9 Wrong, Undo calculation

All reset to initial position

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A2=8 I9=1 ( H2=7 ) Solved,


Total solving time is : 87 sec.
Number of logical steps is : 18307

... by: Serban

# 589 Basics to 22

1. Column 1 n=3 e=6 Nc=22 Ns=14 => E1=9 & C1=5 solve

2. Column 3 n=3 e=6 Nc=10 Ns=4 => D3=7 & [C3=1 OR A1=4] solve

3. Column 7 n=3 e=6 Nc=16 Ns=14 => D7=9 & [ A7=1 OR G7=8 OR J7=5 ] solve

4. Row F n=4 e=5 Nc=7 Ns=6 => F5=4 & F2=2 OR F2=2 & F3=5 solve

5 Row A n=3 e=6 Nc=22 Ns=1 => A7=1 & A8=3=2 OR F2=2 & F3=5 solve

... by: Dieter

4 valid combinations for row F.
combinations A2 (3,8) and D1 (3,9) failed
3 matrices remain with F4/5 = (8,4), all with Alle haben E4 = (1 or 3)
E4 = 3 failed
E4 = 1: two matrices failed
solved with F239 = (2,5,7)

... by: Werner Dubs

I solved this puzzle using my Big Dog program I wrote in Visual Basic. Big Dog is designed to build and validate Sudoku puzzles. It also builds Sudoku + puzzles where I can add from 1 to 6 additional color sectors to the puzzle where each sector has 9 cells. Just like adding 2 sectors to make a diagonal. Big Dog solved and validated this puzzle as to just having 1 solution in 40 seconds. If you have any questions about Big Dog you can email me at marty_dubs@msn.com

... by: Serban

# 589 Basics to 22

1. Number 5 n=2 e=7 N=26 Nc=23 Ns=10 => C1=G2=5 solve

2. Number 7 n=3 e=6 N=18 Nc=10 Ns=6 => D3=J6=7 OR D3=B4=7 solve

3. Number 9 n=2 e=7 N=29 Nc=50 Ns=21 => D7=J8=9 solve

... by: Serban

# 589 Basics to 22

1. Number 5 n=2 e=7 N=26 Nc=23 Ns=10 => C1=G2=5 solve

2. Number 7 n=3 e=6 N=18 Nc=10 Ns=6 => D3=J6=7 OR D3=B4=7 solve

3. Number 9 n=2 e=7 N=29 Nc=50 Ns=21 => D7=J8=9 solve