I have a sudoku question for the advanced people. I like the hardest puzzles ("evil" level
) but apparently I'm slow. I don't really care because I don't like doing things fast, but I was wondering why am I slow? Now the way I do these is always by process of elimination - note all the possibilities then start to eliminate them. I don't think it is possible to do it this way much faster. So... is there a different method that the faster people use?
To me, solving em fast is only fun when you're racing someone [like I used to with my sons].
But most of the time, I solve puzzles while listening to smooth Jazz Fusion and sipping a cold drink. I'm so easily satisfied.
It must be an age thang.
Anyway, this is my solution sequence:
Slice & Dice
- An easy and quick process of elimination technique whereby you identify which line in a specific region may contain a certain number simply by scanning entire rows and/or columns. This is the most common technique.
- Always use pencil marks at this point. This can literally shave 5 - 30 minutes off your time. I swear by it.
- I stopped using this technique because it consumed far too much time. I only utilize this technique as a very last resort now. It's when you count from 1 - 9 while cross-referencing both rows and columns.
- This is an 'unmatched candidate of deletion' technique, of which you're more than likely familiar with as well.
- exactly the same as twinning, except you include a third set of matching numbers. I use this one quite often as it eliminates 1/3 of all possible combinations within a given row, column, and square.
However, since this is also another common technique, you're probably already familiar with it.
All techniques from this point on are extremely difficult to describe, but suffice it to say that they all involve a logic some refer to as 'Consolidation'
, 'Adeline's Thread'
[which is similar to a technique utilized by maze puzzlers], and finally a technique called 'If-Then'
, which is akin to what a Chess player employs and is very difficult due to the fact that you MUST maintain a 3 - 8 move sequence in your head. this is usually where the puzzles kick my butt.
I realize that thee are very simplified definitions, but if you want a more detailed description please let me know.