line goes through a white pearl, it must go straight through the pearl but must turn at right angles

The darker coloured cell is the "current" cell. Pressing a numeric key or one of the numbered buttons Complete the grid such that each row, each column, each 2x3 box and each diagonal contains the digits 1−6. Eiben, A.E., van der Hauw, J., van Hemert, J.: Graph coloring with adaptive evolutionary algorithms. J. Heuristics 4(1), 25–46 (1998) Complete the grid such that each row, each column, and each 2x2 box in each of the two puzzles contains the digits 1−4. Tip 2: Break the grid up visually into 3 columns and 3 rows. Each large column will have 3, 3×3 grids and each row will have 3, 3×3 grids. Now, look for columns or grids that have 2 of the same number. Logically, there must be a 3rd copy of the same number in the only remaining 9-cell section. Look at each of the remaining 9 positions and see if you can find the location of the missing number.Hint: makes suggestions for cells you might like to study - the program thinks that the correct digit for this cell is Complete the grid such that each hexagon (around the circles), the set of triangles containing filled dots, and the set of triangles containing open dots contains the digits 1−6. I now have software that can create puzzles of specific levels of difficulty (from elementary to diabolical). It can also analyse the puzzles invented by other people. Here are some screen shots. This software is available to publishers under a commercial licence,

Use the grey strips above each box as a notepad for typing in numbers that could be in the box just below. in which each element occurs exactly once in each row, column, depth, and subcube. The structure of these cubes is based on cyclotomic cosets of van Laarhoven, P., Aarts, E.: Simulated Annealing: Theory and Applications. Reidel, Dordrecht (1987) Booklet of Mini Su Doku Puzzles (8 puzzles on 4x4 grids) suitable for primary school children aged 7-10. [ Answers]Complete the grid such that each row, each column, and each 3x3 box contains the digits 1−9, and that the linked boxes add up to the sum shown. Repeated digits are not allowed in the linked boxes.

The logic behind su doku puzzles also lends itself to many variations. Here are some su doku puzzle variants I have designed. sets of the digits 1-9 subject to the restriction that each digit must appear once in each row, once Complete the grid such that each row, each column, each 3x4 box contains the letters 'ACEHIKLMORUV'. The solution contains a hidden word or phrase! An initial configuration is given to you, and this cannot be changed. You need to use the logic of theComplete the grid such that each row, each column, and each 3x3 box in each of the five puzzles contains the digits 1−9. Yato, T., Seta, T.: Complexity and completeness of finding another solution and its application to puzzles. IEICE Trans. Fundam. E 86-A(5), 1052–1060 (2003) Complete the grid such that each row, each column, and each 3x3 box in each of the eleven puzzles contains the digits 1−9. Su Doku is a kind of logic puzzle made popular in recent years in Japan and now exploding in popularity across the globe. Complete the grid such that each row, each column, each 3x3 box contains the letters 'ADEIKOSTU'. The solution contains a hidden word or phrase!