🧩 Level Information

• Level Number: 50
• Question: Shake your smartphone and tap the house that is not broken
• Difficulty: Normal

🎯 Objective

Shake your smartphone to find and tap the house without broken glass.

📝 Steps to Solve

1. First, check the multiple houses displayed on the screen. Initially, all the houses appear normal.
2. Securely hold the device (smartphone/tablet) and lightly shake it left and right or up and down. *This gimmick uses a gyro/accelerometer sensor.
3. When you shake the device, some houses will show cracks on their windows or appear completely shattered.
4. All houses with broken glass are incorrect, so look for the house with glass that is not broken (the one that hasn't changed appearance).
5. Tap the only 'unbroken house' that has no cracks or fragments in its glass.
6. When you tap on that house, it will be correct and clear the stage.

💡 Hints

• Simply tapping the screen will do nothing. Suspect a mechanism that utilizes the movement of the smartphone itself.
• Try lightly shaking the device. It's not the house itself but the state of the glass that changes.
• Only one house should remain with unbroken glass after shaking. Tap that house to clear the level.

🧠 Analysis & Points

This stage is a typical gimmick problem that requires the player to ‘move the device itself’. The puzzle text explicitly states ‘shake the smartphone’, making the correct action clear, but many people still try to solve it entirely on-screen.\n\nThe logic is to detect the device's accelerometer/gyro and replace the house's window glass image with a ‘broken version’. As a result, most houses will have glass that appears broken, leaving only one house unscathed, which you identify and tap to clear.\n\n The key steps are ‘shake first as instructed’ → ‘observe the state changes’ → ‘choose the exception’. Brain Test frequently features problems where you ‘select what's different than others’, and this question is designed to have you find the house that is different (the unbroken house) after shaking.

🔍 Common Mistakes

• Not reading the instructions and randomly tapping houses from the start. The glass won't break unless you shake, making it impossible to identify the correct house.
• Attempting to swipe the screen or drag the houses. The necessary action is not a screen operation but shaking the device.
• After shaking once, tapping a house with broken glass. The question clearly indicates that the ‘unbroken house’ is the correct answer, so any broken house is incorrect.
• Barely moving the device, resulting in such a weak shake that the sensor doesn't respond. As a result, nothing happens and the player gets stuck.

🎉 Advice After Clearing

Having experienced a gimmick that involves shaking the device, you'll now be more aware of ‘off-screen operations (shaking, tilting, rotating, etc.)’. Similar mechanisms frequently appear in Brain Test, so becoming familiar with the concept of ‘moving the device’ will make future level solutions smoother.

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