🧩 Level Information

• Level Number: 29
• Question: Considering the solid, there are 8, so enter 8
• Difficulty: Intermediate

🎯 Objective

Not only imagine in a plane view but as a solid, count them and enter "8" to get it right.

📝 Steps to Solve

1. Carefully observe the shapes displayed on the screen, and imagine them as a 'cube (a solid like a dice)' rather than just a collection of rectangles.
2. Consider how many 'corners (vertices)' a cube has. Even the corners not visible on the plane should be mentally supplemented and counted in three dimensions.
3. Notice that the cube has 4 corners on the upper edges and 4 on the lower edges, making a total of 8.
4. Tap the number input field and enter "8".
5. After entering, press the confirm button (OK or checkmark, etc.) to clear it.

💡 Hints

• Don't count the number of rectangles on the plane, but think of it as a solid.
• Imagine a dice and count how many 'corners' it has.
• Think about how many corners there are in total when you combine the upper and lower corners.
• The answer is the 'total number of corners of the solid', including those not visible.

🧠 Analysis and Points

This question is a puzzle that tests the ingenuity to consider the shapes on the screen as solids (cubes with depth) rather than just flat shapes. On a plane, often only some of the corners are clearly depicted, so players tend to count only the visible parts. However, it is necessary to imagine the 'whole solid', including the hidden corners at the rear. A cube has 8 vertices (corners). This is because there are 4 on the upper face and 4 on the lower face, totaling 8—which is a fixed structure. As stated in the question, "Considering the solid, there are 8," by compensating for it as a solid, you naturally arrive at the answer 8.

🔍 Common Mistakes

• Only counting the visible corners (vertices) on the screen and entering numbers like 4 or 5.
• Counting the number of 'faces' of the cube (6 faces) and entering 6.
• Counting the number of edges (12 edges) and entering another number like 12.
• Not reading the question carefully and entering an arbitrary number based on intuition.

🎉 Advice After Clearing

After clearing this level, you realize the importance of imagining things as solids rather than just flat diagrams. In future levels, the ability to imagine not only what is visible on the screen but also what is behind and the depth will be useful.

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