Chapter 688 Looking for Patterns

The fishing boat came out backwards from the No. 6 hole.

Azalina's condition is not bad, but Teacher Cheng is in worse condition. I wonder if it is because she is older and is a little half-conscious and mentally exhausted.

The boat stopped in front of seven caves.

Pan Xiaoxin looked at Bai Youwei uncertainly: "Sister Weiwei, which hole shall we enter this time?"

They have passed No. 4 and No. 2, but now No. 6 is blocked and they have to face the choice again.

Bai Youwei looked at the cave in front of her and asked Pan Xiaoxin: "Xiaoxin, what do you think is the pattern between 4 and 2?"

Pan Xiaoxin was stunned, "They are all even numbers, and then... there is only one digit in between?"

Bai Youwei said: "Counting from right to left, there is a 3 between 4 and 2. If the same pattern applies to the next cave, counting from 2 forward, which cave should we choose?"

"...7?" Pan Xiaoxin said uncertainly.

Asalina asked: "Is 7 more certain?"

"It's hard to say." Bai Youwei lowered her eyes and whispered, "Just now under the boat, I saw the pattern of ouroboros printed on the boat, seven in total. Near the ouroboros was the pattern of a mermaid, as if... once we leave the boat If you have a tailed snake, you will be attacked by a mermaid."

Pan Xiaoxin had never gotten off the boat and had not seen those patterns. After hearing Bai Youwei's words, he suddenly realized:

"I understand, seven ouroboros correspond to seven caves, is that right, Sister Weiwei?"

Bai Youwei nodded slightly, said "Hmm" in a low voice, and said: "No matter how we choose the first seven caves, we will not encounter mermaids, because we are in the position of snake heads, and every snake head can protect our safety. It is safe, but once we go deep into the belly of the snake, it is equivalent to us choosing a circular closed path, and we must follow the path corresponding to the ouroboros, otherwise we will lose protection."

Aaron couldn't help but ask: "But how can we know the corresponding path of that snake? Is there any hint in the pattern?"

This is the most difficult part for Bai Youwei.

Because the pattern on the ship is a group of snakes entwined together, and the light is too dark, it is really difficult to see the details. Moreover, with the several attacks of the mermaid on the ship, the pattern has been severely damaged, and the iron sheet has peeled off in some places.

"The path corresponding to each Ouroboros should have its own rules... I can't see any obvious clues, but their colors are black and red, with one section black and one section red. If the head is black, then The tail must be red, and the colors cycle just right.”

Azalina thoughtfully said: "If the order of entering the holes also cycles like the colors, entering the No. 4 hole, pushing two numbers forward is No. 2, then No. 7, No. 5, No. 3, No. 1, No. 6, No. 4, we need to enter the hole a total of 8 times before we can cycle back to the original No. 4 position."

Bai Youwei nodded: "That's what I mean."

After a pause, Bai Youwei continued: "Counting from right to left, 4 and 2 are one number apart. Counting from left to right, 4 and 2 are exactly four numbers apart."

1-2-3-4-5-6-7.

Asalina nodded when she heard this, "I understand, what you mean is, which hole number was chosen at the beginning, and the interval number will be chosen for the next hole. If we chose hole No. 1 at the beginning, then the next hole The hole is 3, followed by 5, 7, 2, 4, 6, 1, and it also takes eight times to complete a cycle."

"This is just a possibility of the law." Bai Youwei's voice lowered, "Whether or not you should choose a cave according to the color prompts, tell me your opinion."

Asalina thought for a while and looked at Aaron: "Go down and see how many color blocks there are in the colors of those ouroboroses."

Make up 1