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Quick Rules:

Rows and columns are divided into compartments of white squares. Use single numbers to complete a straight for each compartment. A straight is a set of numbers with no gaps and in any order. No single number can repeat in any row or column. Clues in black cells remove that number as an option in that row and column, and are not part of any straight

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B
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J
                 
                 
                 
                 
                 
                 
                 
                 
                 
Version 1.05
See Strategy Overview documentation

Coordinate system: Letter/Number rYcX
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Show Candidates
Check for Solved Squares   
Show Possibles  
1: Compartment Check  
2: Stranded Digit A  
3: High/Low Str8ts (rows) A  
4: High/Low Str8ts (cols) A  
5: Stranded Digit B  
6: High/Low Str8ts (rows) B  
7: High/Low Str8ts (cols) B  
8: Naked Pairs  
9: Naked Triples  
End Strategies


What's 'A' and 'B'?
I've split these strategies into two. The first time they are called - 'A', they only look for eliminations which return a solution for a cell, ie one number is left. This focuses the solver on the shortest path. If this fails, 'B' is called, which returns all eliminations, if any are possible.



















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Article created on 21-Nov-2008.
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