🧩 Level Information

• Level Number: 16
• Puzzle Description: Swipe the rock, it's hidden at 40, so input 40
• Difficulty: Easy

🎯 Objective

Swipe the rock to find the hidden number, then input the number "40" to clear the level.

📝 Solution Steps

1. First, focus on the large rock on the screen.
2. Not only tap the rock, but swipe it to either side with your finger to move it.
3. When you swipe the rock away, the hidden number "40" will appear underneath.
4. Input the displayed number "40" into the entry field.
5. After inputting, press the OK button (or Confirm button) to clear the stage.

💡 Hints

• The numbers visible on the screen may not necessarily be the answer. Observe the surrounding objects closely.
• If tapping doesn't cause any change, try dragging or swiping the object.
• Try swiping the large rock away. There's a number hidden beneath it. Enter the number "40" as it appears.

🧠 Analysis and Key Points

This stage is a tutorial-like problem common in Brain Test, teaching that "the information visible on screen is not all there is." Players initially try to derive the answer from visible numbers or objects, but the real solution lies in the action of "moving the rock to find the hidden number." The rock does not react to tapping and moves only when swiped, encouraging the realization of the operating variations like "if pushing doesn't work, try pulling," or "if tapping fails, try swiping." Once you find the hidden number "40," you only need to input it, making the main challenge realizing the mechanism.

🔍 Common Mistakes

• Seeing only the numbers initially displayed on the screen and attempting to calculate from them.
• Only tapping the rock without anything happening, leading to the assumption it's a non-interactive object.
• Guessing numbers and continuously inputting them without realizing the need to move the rock.
• Not swiping in a sufficient direction, only lightly stroking and failing to notice the movement.

🎉 Post-clear Advice

The answer was hidden under the rock. This stage teaches the importance of not only focusing on visible items but always suspecting whether there might be “movable objects” through dragging or swiping in Brain Test. In the next level, continue considering whether objects can be moved.

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