Maths Guru
English | हिन्दी
PuzzleAges 5–11Part of Smart Games

Secure the Fort: build one wall that keeps raiders out

Secure the Fort is a wall-building logic puzzle inspired by India's historic forts. The player places wall pieces to form a single closed rampart, with every guard and chhatri tower inside and every red raider outside.

Play now Play free, no sign-up needed to start
Secure the Fort

How to play

  1. Place every wall piece from your tray so the walls join into a single closed loop with no gaps or loose ends.
  2. Every guard and chhatri tower must end up inside the rampart.
  3. Every red raider must end up outside the walls.
  4. Rotate and flip pieces to fit, and use all of them.
  5. Exactly one layout works. Solve it fast and without hints for 3 stars.

Maths skills it builds

  • Spatial reasoning
  • Logical deduction
  • Loops, inside and outside
  • Planning ahead

Why it works

The puzzle has a clear goal, but reaching it needs careful reasoning about what is inside and outside a boundary, a skill that connects to perimeter, area and geometry. The ranks Sipahi, Havaldar, Subedar and Maharaja give children a story of progress to climb through, with 100 levels in total.

Related maths skills

Questions parents ask

What are the difficulty ranks?

Sipahi (4×4 boards), Havaldar (5×5), Subedar (bigger sieges) and Maharaja (6×6, the busiest). Each rank has 25 levels.

Is there more than one solution?

No. Every level has exactly one wall layout that works, so there is always a logical route to the answer.

Does it need any maths knowledge?

No arithmetic is needed. It builds spatial and logical thinking that supports geometry.

Can guests play?

Yes. Guests can play Sipahi (levels 1–25). Signing up unlocks Havaldar, Subedar and Maharaja.

Secure the Fort

Play now

More games to try