Brain Find Level 21

Overview

This level, titled "Where's the diamond?", shows a single large Russian matryoshka nesting doll standing in the center — pink headscarf, blonde braids, and a painted church on its belly. The bottom preview shows a diamond as the hidden object. The doll is closed, with a clear horizontal seam around its middle where it splits. The success hint, "Remember how to open a Russian doll?", tells you exactly what to do: nesting dolls open by pulling the two halves apart, revealing a smaller doll inside. The core mechanic is repeatedly opening the doll layers. The overall approach is to split the doll at its waist, take out the smaller doll inside, and keep opening each smaller doll until the final one reveals the diamond.

• Difficulty: Easy
• Estimated moves: 3

Step-by-Step Solution

1. Look at the matryoshka doll. Notice the horizontal seam running around its middle — that is where the doll comes apart. There is no diamond visible on the outside.

1. Grab the top half of the doll and pull it upward, or pull the two halves apart at the middle seam. The doll splits open, revealing a smaller nesting doll tucked inside the bottom half.

1. Take that smaller doll. It also has a seam around its middle. Pull it apart the same way to reveal an even smaller doll inside.

1. Keep opening each smaller doll layer by layer, exactly like a real Russian nesting doll. Each opening reveals the next smaller doll.

1. When you open the smallest doll, instead of another doll you find the diamond inside. Tap the diamond to collect it. The level completes with a "Good" banner and the message "Remember how to open a Russian doll?", then shows the diamond enlarged in the center circle.

Strategy & Reasoning

This level tests whether you recognize a nesting doll and remember how it works. The doll looks like a single painted figure, but the horizontal seam and the hint about Russian dolls tell you it opens. Real matryoshka dolls split at the waist and contain progressively smaller dolls nested inside, so the solution is to open it repeatedly.

The designer hides the diamond all the way inside the smallest doll, so tapping the outside of the big doll does nothing. You cannot shake the screen or drag the doll away — the only correct action is pulling the two halves apart at the seam, exactly as the hint suggests. Once the first half comes off, the smaller doll inside is obvious, and you repeat the same action until you reach the center.

Because the puzzle is about recognizing the nesting-doll mechanic rather than searching a scene, there are no decoys elsewhere on screen. The whole level is contained in the one doll. Opening it layer by layer is the only path, and the diamond appears at the very last layer.

Tips & Common Mistakes

• Common mistake: tapping or rubbing the outside of the doll. The diamond is not painted on the surface; you must split the doll open.
• Common mistake: opening only the big doll and stopping. A smaller doll is inside — you must keep opening each nested doll until the smallest one.
• Common mistake: pulling the doll apart vertically or sideways. Nesting dolls split horizontally at the waist seam, so pull the top half upward off the bottom half.