Set cell colour
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
New in version 1.11
Ported to HTML5/aspx New in version 1.10
Added a compartment validation check closer to the editor. New in version 1.09
Added 'Isolated Digits' strategy thanks to Konrad Kritzinger's prompts (and others). New in version 1.08
Added 'Required Digits' strategy thanks to Ulrich's excellent examples. New in version 1.07
Added 'Stranded Sequence' and 'Compartment High/Low' strategies. Many thanks to Konrad Kritzinger for the best tips and others
who have pointed out improvements. New in version 1.06
I have re-written this solver to bring it up-to-date with the
other solvers and finally added missing features:
automatic state saving (in case you accidentally navigate away)
[Save] and [Reload] are now available
The [New] button now works and you can create the black and white cells.
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
If you are getting errors please clear your browser cache to retrieve the latest script files
Solver created on 21-Nov-2008.
Solver updated on 16-Dec-2022.
All puzzles on this site are trademarked and patented and cannot be reproduced without permission.
Copyright Andrew Stuart @ Syndicated Puzzles, Privacy, 2008-2023