For many who are new to sudoku usa today, finding a solution can be a complete mystery. On one hand, with so many numbers, sudoku usa today seems very mathematical. On the other hand, without the appropriate solution techniques, it can amount to a lot of guessing and checking.
How to Solve a sudoku usa today ?
Starting with Easy Hints
1. Look for a single empty in a larger square.
Check each square to see if it has a single square open. If it does, it’s easy to fill in. Just figure out what number is missing from 1 to 9.
For example, if a larger square has numbers 1-3 and 5-9 of sudoku usa today, you know it’s missing the number “4,” which you can fill in.
2. Check for singular empty squares in the rows and columns.
Run your finger down each row and column to see if any of them only have 1 square open. If a row does, figure out which number from 1 to 9 is missing in that row or column and fill it in.
If a column has numbers 1-7 and 9, you know it’s missing the number “8,” which you can fill in.
3. Scan rows or columns to fill in larger squares.
Look at a row of 3 large squares of sudoku usa today. Check for a number that’s repeated 2 times in different squares. Run your fingers along the rows that contain that number. The third large square must contain the same number, but it can’t be in 1 of the 2 rows you’re tracing. It must be in the third row. Sometimes, 2 other numbers will be in that row, so you can easily fill in the number you’re scanning.
If “8” is repeated in 2 squares, look for that number in the third square. Run your finger down the rows with each “8,” as you know the “8” can’t be in those rows in the third large square.
4. Add the opposite direction.
Once you’ve got the hang of scanning across just rows or columns, add the other direction as well. Take the previous example with a slight difference. When you get to the third square, it only has 1 number filled in in the open row.
In that case, trace down the columns. See if the number you’re trying to fill in is in 1 of the columns. In that case, you know it can’t go in that column and must go in the other one.
5. Work in groups of numbers.
That is, if you see that you have a lot of one number on the board, it can help to start trying to fill in the rest of that number. Say you have a large number of 5s on the board. Use your scanning techniques to fill in as many 5s as you can.
Sudoku usa today Solver – Advanced sudoku usa today Solving Techniques and Tips.