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Have fun playing Sudoku with SourGumdrop and become an expert.
Finish that puzzle that's got you stumped - just enter the clues and
use SourGumdrop to guide you past the problem.
Powerful but simple user interface
The user inteface minimises the effort required to work on puzzles and
lets you concentrate on finding the solution.
The solution for a single cell or the whole puzzle can be shown at any
stage. You can colour cells and candidates to help identify
patterns. Inconsistent or incorrect answers can be shown as you set
them and all moves can be undone.
Flexible hint methods
The hint methods can be configured to reveal carefully controlled
amounts of information. Set them so you see only the minimum necessary
to make progress, or use them to learn how to recognise patterns. Ask
to highlight the candiates that can be removed, or the candidates that
form the pattern, or ask to show only the cells involved in the
pattern. Request the hint which is easiest to understand or the one
which removes the most candidates. Hints can be requested for
specific algorithms or for classes of algorithms.
Hint algorithms
Hidden Singles, Hidden Pairs, Hidden Triples, Locked Candidates, Naked
Pairs, Naked Triples, Naked Quads, Xwing, Swordfish and Jellyfish.
Internal and external puzzles
SourGumdrop's built-in puzzles are given a difficulty rating depending
on the algorithms required in their solution and puzzles can be
selected based on their difficulty.
Puzzles can be read from files or entered via a built-in editor.
SourGumdrop can solve all puzzles. Entered puzzles are checked for
internal consistency and for having a single solution. Partially
completed puzzles can be saved to files along with their remaining
candidates and then tried again later or sent to friends.
The appearance of the program can be set using a configuration
option and clues can be numerals or letters. The source code is
included.
SourGumdrop: http://sourgumdrop.org.uk/pad/SourGumdrop.zip
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