Sequence Memory Test

Sequence Memory is an advanced form of visual memory. It requires you to remember not only "what positions" changed, but also the "order" in which these changes occurred.

In the test, you will face a fixed 3x3 grid. In the first level, one block will flash. You need to click it. In the second level, the previous block will flash again, followed by another block. You need to click these two blocks in order. By analogy, the sequence increases by one block with each level.

This is like the classic "Simon Says" game. As the sequence gets longer, you need high concentration and memory techniques (such as converting positions into number codes or spatial patterns) to pass. You have 3 lives, and one wrong click will deduct a life and retry the current level.