![]() ![]() This will help you to quickly note all possibilities for any given cage when solving a Killer Sudoku puzzle. This variation is commonly called 'Jigsaw Sudoku', because the usual Sudoku blocks have been replaced with regions that resemble pieces of a jigsaw puzzle. Therefore, the digit 2 can be eliminated from all dark yellow cells.Ĭopyright (C) Sudoku Solver sudokusolver.Below are all possible combinations of numbers that can be placed in a Killer Sudoku cage, given the cage size and the cage total. Most of the features in Sudoku Solver are dedicated to helping you find logic-based solutions to Sudoku puzzles, though if you like it can easily and quickly provide you with the solution for any valid 9x9 Sudoku puzzle without further ado. In addition, we can see that the dark yellow cells forming the bridge are included in the cells for elimination. Sudoku Solver will help you download, create, validate and solve 9x9 Sudoku puzzles. In the fourth column there is one more cell that can have the digit 1 (R8C4), so the cells R2C4 and R5C4 do not form a conjugate pair, but they form a so-called bridge between groups. In the sudoku diagram below we have two groups (light / dark yellow group, light / dark green group) conjugate pairs for the digit 1. So from all cells that see both light yellow and dark green cells simultaneously, and from celss that see both light yellow and light green cells simultaneously, we can eliminate the digit 2. The Color Wing technique uses more than one group of conjugate pairs for analysis. The next example presents two groups of conjugate pairs for the digit 2 connected by more than one bridge, e.g. Thanks to this elimination, we can place the digit 8 in the R4C2 cell. ![]() From here we can eliminate the digit 1 from cells that "see" light yellow and light green cells simultaneously, i.e. solution made with the Killer Sudoku Solver / Sum Number Place Solver (Samunamupure) online (screenshot of solution). A sudoku game is a great way to strengthen logic skills. Regular sudoku uses numbers, in this version you will manipulate blocks to solve the puzzles. Therefore, either light yellow cells or light green cells, or both types of cells will have the digit 1. Use these free, printable Color Sudoku Puzzles to stretch your child’s critical thinking and problem solving skills. Also the number of inner boxes is in a × game for most variants, there can be exceptions. Now either all blue cells must contain digit 3 or all green cells. Notice that row 9, column 9 and box 9 all have 2 candidates for digit 3, which now have opposite colors. In the example, green and blue colors have been applied. In our case, the dark green R2C4 cell or the dark yellow R5C4 cell or both will not get the digit 1. In general, 2 colors are needed to mark all inner boxes. We can use colors to help us remember which candidates must be true or false simultaneously. Now if R5C1 is true (1) then we can exclude the. Hence R9C1 is true (1) then all cells in blue are false and all cells in green are true. Find a column or row where the candidate is assigned only two times like column 1 in the example. The bridge is characterized by the fact that one or both cells will not get the given digit. First I use Orange to mark the start of color mapping, in this example the candidate is (1). In the fourth column there is one more cell that can have the digit 1 (R8C4), so the cells R2C4 and R5C4 do not form a conjugate pair, but they form a so-called bridge between groups. Color Sudoku Puzzle Welcome to our colour Sudoku. The literal meaning of 'Su-doku' in Japanese is 'the number that is single'. Color WingThe Color Wing technique uses more than one group of conjugate pairs for analysis. About Sudoku puzzle game and how to play Sudoku is one of the most popular logic-based number-placement puzzle game. ![]()
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