Sudoku for Java - HoDoKu Icon

Sudoku for Java - HoDoKu

Sudoku for addicts

4.8 Stars (11)
144 Downloads (This Week)
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Description

Sudoku generator/solver/analyzer written in Java (English and German). Lots of human style techniques (singles, subsets, LCs, fish, wings, uniqueness, coloring, chains, ALS), powerful analyzer (manage multiple solutions for one sudoku). Includes Learning and training modes and a booklet printer.

Sudoku for Java - HoDoKu Web Site

Features

  • Completely scalable, self explanatory user interface
  • Create random puzzles in five configurable difficulty levels
  • Supports over 70 human style solving techniques
  • Fully configurable using dozens of options
  • Powerful booklet printer / extended print options
  • User manual and solving techniques guide available on the home page

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User Reviews

  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    This algorithm can replace the techniques included in the fish strategies from the following chapters. Below are presented the few examples from the next 5 chapters. The other examples can be solve in the same way. For each candidate-digit will be determined the cells in which the candidate can take values. In this way we’ll obtain nine 9x9 matrix m1, m2, …m9 with n1, n2, ….n9 candidates with k1, k2, ….k9 lines, columns, blocks. The next step consist in calculus of numbers of possible cases N_i=C_(n_i)^(k_i ), i=1:9. For each case will be verify the accomplishing of bases conditions. If these conditions are not accomplished, from the unsolved cells, the candidate or candidates of those presence can introduce errors will be eliminated. Basic Fish JellyFish m7 – n7 = 29, k7=8 r2c2, r7c8, r8c8, r9c9, r7c9, r8c9 ><7 m9 - n9 =17 , k9= r2c2, r7c2, r1c9 ><9 Finned/Sashimi Fish 2.1 Finned/Sashimi Swordfish m2 - n2 =26, k2=7 r6c2><2 => r6c2=1 Solve r3c4><2 => r3c4=1 Solve r4c5><2 => r6c4=2 Solve r5c5 ><2 Complex Fish Siamese Fish m8, n8 =23 k8=6 r5c1 ><8 => r5c1=1 Solve r9c2><8 => r9c2=9 Solve Single Digit Pattern 4.1 Skyscrapen m4, n4 =13 k4=5 r2c1><4 => r2c1=6 Solve r1c4><4 => r1c4=6 Solve r5c5><4 => r5c6=6 Solve r2c6><4 => r1c6=6 Solve m6 n6 = 21 k6=6 r5c5><6 5.1 X Chain m7 n7=16 k7=5 r4c2><7 =>r4c2=4 Solve In order to keep the computing time in range of few seconds, n must be lower than 30. The program can solve all the examples from the “Fish strategies”.

    Posted 02/28/2017
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    There is room for improvement. One fundamental rule is to verify if the puzzle has multiple solution, It is not a Sudoku is it has multiple solution.

    Posted 10/10/2016
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Additional Project Details

Languages

English, German

Intended Audience

End Users/Desktop

User Interface

Java Swing

Programming Language

Java

Registered

2009-01-13

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