Unlock Grandmaster Spatial Intelligence with the 5 pcs Metal Puzzle Set 2 (Zero Wood • Zero Plastic)

Are you looking for an elite mental challenge that leaves generic toys behind and pushes your problem-solving skills to the absolute limit? Welcome to the 5 pcs Metal Puzzle Set 2 by Puzzlex Shop BD — Bangladesh’s definitive store for authentic cast metal puzzles, world-renowned Hanayama brain teasers, and mechanical trick locks.

Forged from dense zinc alloy and high-tensile solid steel, this grandmaster collection brings together five of the most famous topological enigmas in puzzle history. From the world-famous Level 6 Hanayama Cast Quartet and Oskar's Nutcase to the classical European Kugelpyramide (Steel Ball Pyramid), each puzzle demands sharp visual-spatial coordination, geometric intuition, and disciplined lateral thinking. Unlock their concealed clearances without brute force, and reassemble each piece to claim true mastery!

🧩 The 5 World-Class Brain Teasers Included in Set 2

1. 1
   6 Piece Steel Ball Pyramid Puzzle (Ball Travel / Kugelpyramide):

• A celebrated European mathematical puzzle consisting of solid steel spheres welded into precise cluster arrangements. Your task is to calculate the 3D packing geometry and assemble the irregular clusters into a freestanding, perfect 4-sided pyramid (tetrahedron).

1. 1
   Hanayama Cast Nutcase (The Bold Lock):

• Invented by renowned Dutch puzzle mastermind Oskar van Deventer. Features two heavy interlocking cast nuts on a threaded central bolt concealing a secret internal pin. Random twisting gets you nowhere—only finding the counter-intuitive reciprocal thread alignment will release the hidden core.

1. 1
   Hanayama Cast Quartet (The Hands Friend):

• Designed by Mine Uyematsu, this is internationally ranked among the highest-difficulty (Level 6) cast disentanglement puzzles in existence. Four interlocking curved metal links form an elegant square bond. Unraveling and reconstructing this topological loop is an unforgettable intellectual triumph.

1. 1
   Hanayama Cast Cage (The Jail Lock):

• Designed by Prof. Bakalar. A solid, faceted metal star/prism imprisoned inside a robust angular cage. Navigating the captive piece through the cage bars requires millimeter-accurate clearances and multi-axis spatial planning.

1. 1
   Hanayama Cast Square (The Metalic Too):

• Designed by legendary inventor Nob Yoshigahara. Four identical, interlocking L-shaped quadrants joined into a seamless flat square. Gliding and rotating the pieces along coordinated secret tracks unlocks its concealed release mechanism.

🌟 Key Highlights & Why You'll Love This Bundle

• 100% Solid Heavy-Duty Metal Construction: Cast from dense zinc alloy and solid carbon steel with electroplated nickel. Heavy hand feel, pristine chamfered edges, and zero cheap plastic or fragile tin wire.
• World-Class Grandmaster Difficulty (Level 5 to Level 10): Specially curated for software engineers, mathematicians, chess players, and puzzle connoisseurs who desire deep, hours-long problem-solving sessions.
• Anti-Oxidation Sweat-Proof Barrier: High-grade electroplated finish engineered to resist sweat, moisture, and Bangladesh’s humid weather without rusting or discoloration.
• Executive Desk Companion & Focus Enhancer: Silent, tactile, and deeply satisfying. Helps alleviate workday anxiety, reduces screen fatigue, and trains deep focus during study or programming sprints.
• The Ultimate Luxury Intellectual Gift in BD: Packed with sophistication, making it the most thoughtful gift for birthdays, corporate achievements, and thinkers across Bangladesh.

⚙️ Product Specifications

🚚 Delivery & Authenticity Guarantee

• 100% Authentic Metal Quality: Heavy-gauge metal with tight engineering tolerances.
• Cash on Delivery (COD): Available across all 64 districts in Bangladesh. Pay after receiving your parcel.
• Fast Dhaka Delivery: Express dispatch directly from our Baipail / Dhaka logistics hub.
• Live Parcel Tracking: Real-time SMS and courier tracking updates from dispatch to your doorstep.