These are fiendish! I have sometimes found help from the following. Where three numbers which are all different add to a circle, there are only seven combinations, adding to between 6 and 9. All but one of them contain '1'. Then I used the process of elimination and (in pencil!) colour over the numbers as you decide they're not a possibility. No circle can be 1, and nothing in the path of an arrow can be 9. If there are more than 2 boxes in the path of the arrow, then none of those boxes can be 8. If there are 3 boxes in the path of the arrow and they are all in the same row, column, or square, the number in the circle must be more than 6.

I've finished off the 2 issues of Arrow Sudoku Magazine. Any chance of some more being produced please? In addition to the arrows, it will immediately be noticed there are many less givens than with a standard sudoku puzzle. But this is compensated by the fact that the arrows provide additional information - if you know how to access that information! And of course you use the numbers you've been given and cross them out in all the other boxes in the same square, column, or row. In addition to the standard Sudoku rules of every row, column, and 3×3 region containing the numbers 1 to 9 once and only once each, Arrow Sudoku only has one additional rule.One of the most interesting elements of solving arrow sudoku is that the circle cell and the path of the arrow interact - by updating the options for one you may find you can update the options for the other, and then those can again be used to update the circled cell. Category: sudoku variants | Keywords: arrow sudoku Comments:I am addicted to these Sudokarrow puzzles but as you quite correctly suggest, have only found them in the i on Saturday. Is there a book? can I buy online? For instance if you know an arrow must contain 1,3,5 or 2,3,4 then you know it must contain a 3 somewhere. If that arrow is fully inside a 3x3 box region in the ordinary sudoku puzzle, then you can eliminate 3 from all other cells in the 3x3 box that are not along the path of the arrow. Tip 1: Look for rows, columns of 3×3 sections that contain 5 or more numbers. Work through the remaining empty cells, trying the numbers that have not been used. In many cases, you will find numbers that can only be placed in one position considering the other numbers that are already in its row, column, and 3×3 grid. Arrows provide lots of information that helps you to solve the puzzle. At the most basic level, you know that the circled cell cannot contain the 1, and each cell along the path of the arrow cannot contain 9.

Well i feel much better having read the above comments,I too, find Sudokarrow quite challenging.I am pleased to say that I have solved some but it has taken me a few days!! 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. Related puzzles Calcudoku, Circle Sudoku, Consecutive Sudoku, Futoshiki, Graeco-Latin Sudoku, HyperSudoku, Irregular Sudoku, Isosudoku, Killer Sudoku, Offset Sudoku, Outside Sudoku, Samurai Sudoku, Star Sudoku, Sudoku, Sudoku X, Toroidal Sudoku If you look at the sample image, and sample solution particularly, it will help you to see how the arrows work: the number in the circled cell is the sum of the numbers along the path; thus if there is a 2 and a 3 along the path of an arrow of length two, then the circled cell contains 5, given 2 + 3 = 5, and so on.To enter a pencil mark, press control, shift, or alt on your keyboard at the same time as pressing a number key. Arrow sudoku is a visually striking variant of the standard sudoku puzzle, and really adds a very interesting element to the solving mix: arrows that use the numerical values of cells to help you solve the puzzle. There are two ways to play a Sudoku puzzle, you can just use the mouse/touchscreen, or you can use the mouse and keyboard.