The great thing about this game is that the auxiliary is so easy to use and can save a lot of time. Another point is that it can be guaranteed that as long as the logic of the level is correct, the level can be cleared, avoiding various eye errors and hand errors in the non-auxiliary version.

One star and two stars can help you practice basic speed. You can cycle without thinking, turn on the auxiliary device, from 1 o'clock to 9, filter out the only items with the same number in the same row, the same grid, and cycle through to pass the level. Mainly to practice hand speed and eyesight. When it reaches about 3 minutes and 4 minutes, you can jump to the next one if you find it boring.

Two stars and three stars, still cycle until the cycle is no longer possible. There will be only two items in the same row, same column and same grid. It is very simple. For example, if you see two 48s in a palace grid, eliminate the 48s in other items in this palace grid. That’s it. Then continue to extend the operation. If you run out of ideas, repeat the previous 1-9 cycle. You may find that some number sequences only have four numbers left, and they are rectangular in shape. At this time, they cannot be reduced temporarily. There are other polygons that are also termination signals. I will not list them one by one. You can find out by yourself. Bar. These can save time. Then, like three 123s, we can also draw inferences and investigate other grids.

Then slowly practice it for 5-6 minutes before starting the next level.

Four Stars—There will be a situation where neither operation one nor operation two can be carried out. It’s very simple. We find a place with dense numbers, find a block with only two numbers here, and then perform hypothesis testing. Anyway, only one is correct.

It's best to simply remember it, otherwise it will be easy to get confused. After making an assumption, we can then cross-operate. If you find that some grid assistants tell you that you have no more numbers, it means that this logic is wrong. Then go back to the place where you started to assume and choose another one. The correct number is enough, we call it operation 33. Then cycle through 123 times (usually four-stars will do three operations at the end)

Practice a few levels, about 15 minutes, start with 5 stars

5 stars.

There is no logical difficulty increase here, but the required operation 3 is advanced to the very beginning. In other words, hand speed and eyes must keep up, and logic must be clear. It is very possible that if a hypothesis is rejected, one will go back to before liberation overnight. The second is that there is a high probability that there will be a double-level operation three here, that is, you assume a number, and then you must do another operation three before it is time to verify the authenticity, otherwise you will get stuck. Don’t panic here, just record it. Don’t worry about what to do if it keeps looping. I’ve played more than 20 levels with 5 stars, and I haven’t yet had a situation where I needed four nesting dolls. The essence of this game is that it is known that 24 inferences are 81, and there is an upper limit.

Finally, after knowing how to pass the level, you can practice your own speed. Keep going faster and faster, and you can exercise various logical speeds. Come on.