If you want to exercise logical thinking, you can play guessing games.

The rules are as follows: the questioner gives a four-digit number, which cannot be repeated. For example, 1234 can be 1 123 cannot be.

For example, the questioner asks questions 1234.

Respondents must guess this number. For example, I guessed 2340, compared with 1234, the number was right three times, but the position was wrong.

Then the questioner said that 0A3B was used to indicate the correct number, but the wrong A was used to indicate the correct position of the number.

For example, I guessed 1496, and the questioner told me that the number and position of1a 1B "1"were correct, so the number and position of 1A4 "were correct, so1b.

Keep guessing like this

Unless you are particularly unlucky, you may get it right 7 times, and at most it is 10%.

Generally speaking, it can be completed within 6 times of normal luck, and sometimes it is possible to guess correctly 4 to 5 times of luck.

This is a good way to practice logical ability.