1. Open the "Tangramz!" app on your mobile device to begin playing.

2. Choose a level from the available selection. Levels may increase in difficulty as you progress.

3. Observe the silhouette or outline of the shape you need to complete. This is your objective for the current puzzle.

4. Below or around the silhouette, you will see seven geometric pieces, also known as tans. These include triangles, a square, and a parallelogram.

5. Use your finger to drag each tan to the puzzle area. Position and rotate the pieces to fit into the shape's outline perfectly.

6. To rotate a piece, tap it or use a two-finger twist gesture depending on your device’s controls. You may also need to flip some pieces to fit correctly.

7. Make sure all seven pieces are used and that none of them overlap. Each piece must lie entirely within the shape’s borders.

8. Once all pieces are correctly placed, the puzzle will complete and you’ll advance to the next level.

9. Continue solving puzzles to unlock new challenges and improve your skills.

10. Invite friends to play and compare progress. Enjoy the relaxing and brain-boosting experience of "Tangramz!" anytime.