Extreme difficult puzzles are often crafted from wood or metal and require intricate manipulation skills and a deep understanding of the underlying mechanisms to solve. Some examples include complex mechanical puzzles, secret opening puzzles, take apart puzzles, brain teaser puzzles, and intricate burr puzzles with numerous interlocking pieces. These puzzles can be challenging but also very rewarding when solved.
Steuerrad Puzzle Box - Sequential Puzzle
The Steuerrad Puzzle Box is a high-level difficulty puzzle that will have even experienced puzzlers stumped right from the start, thinking: “how could I possibly start solving this puzzle?!” You...
PLD Puzzle Box
You will be forced both literally and figuratively to think outside the box with this puzzle designed by the great Jean Claude Constantin. The PLD Puzzle Box contains two sliding...
Mission Impossible - IQ Puzzle For Adults
Packing puzzles can challenge even the most experienced puzzlers! Our Mission Impossible Puzzle certainly lives up to its name as one of the hardest packing puzzles we have in our...
Quartet Cast Puzzle - Very Hard Puzzle
Not for the faint of heart, The Quartet Puzzle is a deviously tricky disentanglement puzzle, named after the number of pieces involved. There are 4 pieces total that form the...
Japanese Interlocking Ladder Puzzle
The Interlocking Ladder Puzzle is based on the "Japanese Crystal Puzzle" originally designed in Japan circa the 19th century. This stunningly ornate and intriguing device is one of the most...
The Trap Puzzle - Challenging Puzzle
This inventive adaptation of the classic disentanglement puzzle “Salvador String” requires even the most experienced puzzlers to exercise patience and caution as they try to free the trapped ball in...
Two in One Box - Sequential Puzzle Box
The Two-In-One Sequential Puzzle Box is a sophisticated combination of a sliding gauge puzzle with a distinctive maze apparatus. The first objective is to solve the labyrinth by releasing the...
Trinity Metal Puzzle - Very Difficult Puzzle
Very difficult metal puzzle by Hanayama. The Trinity puzzle is made out of three pieces that lock into each other. None of the pieces is uniform, which makes it difficult to discover the...
Safe Puzzle - Very Hard Puzzle
Can you open the puzzle box safe and free the Euro coin? A very hard puzzle with a double-layered labyrinth maze. The goal of the puzzle is to open the safe and...
Lock 64 - Coding puzzle
From the creative and eccentric mind of Seibenstein-Spiele’s founder, Jurgen Reiche, this spectacular Lock 64 Coding Puzzle is built from laser-engraved pieces of heavy-duty wood to hold the secrets of...
Nutcase Puzzle - By Oskar van Deventer
If you’ve ever felt like a nutcase yourself while solving a puzzle, look no further! The main objective for this Nuts & Bolts style puzzle is to free the small,...
Titan Brass Puzzle - By Felix Ure
Very hard metal puzzle and very satisfying to solve. The goal of the puzzle is to open the sphere. The Titan brass puzzle is a simple-looking, yet highly challenging take-apart puzzle. This is...
Enigma Puzzle - Very Difficult Metal Puzzle
This super hard puzzle was considered for many years impossible to solve. The Enigma metal puzzle was originally designed in 1975 in the USA. Recently Hanayama made a new version...
Tricky Drawer - 4 Piece Burr Puzzle In a Box
Our Tricky Drawer Puzzle is one of the hardest interlocking puzzles in our collection. It’s modeled in the style of the many famous Burr puzzles in the same collection. Tricky...
Piston Puzzle - Sequential Discovery Puzzle
A beautiful mechanical puzzle crafted from solid brass with a unique, seven-stage, sequential discovery solution. The goal is to find the brass ball locked inside the cylinder. Designed by Felix Ure the puzzle is rated...
ELK Cast Puzzle - Very Hard Puzzle
ELK cast puzzle is based on the original famous puzzle from the 19th century, which has been successfully revived in a new form. The key word here is "antlers". Can...
Gift Card
Shopping for someone else but not sure what to give them? Give them the gift of choice with a Kubiya Games gift card. Gift cards are delivered by email and contain...
3D Pentomino Chess Cube Puzzle
Packing puzzles can challenge even the most experienced puzzlers! The 3D Pentomino Chess Puzzle is one of the hardest packing puzzles we have in our collection. This puzzle takes the...
24 Piece Star Puzzle
Challenge your brain and your patience with our scintillatingly celestial 24 Piece Star Puzzle! This brilliant puzzle is made of 24 non-identical, interlocking wooden pieces. Each chunk is precision cut...
Amour Puzzle - Hanayama Level 5 Cast Puzzle
A great puzzle by master Akio Yamamoto. The two independently linked loops make this puzzle extremely challenging. Your goal is to remove the masterfully interlocked 'Adam' and 'Eve' loops from...
New Secret Box Ⅱ - Karakuri Puzzle Box
The New Secret Box II is a recent addition and a true tour de force of design from the great Akio Kamei, made by the Karakuri Creation Group. The object...
Hip-Flask Puzzle - Sequential Metal Puzzle
A premium mechanical brass puzzle by Felix Ure. The Hip-Flask puzzle is a multi-stage, sequential discovery puzzle. The objective of the puzzle is to remove the lid of the flask - but to do so you will...
High-Quality Metal Puzzles - By Felix Ure
High-quality mechanical metal puzzle set. Those are the first two puzzle designs by Felix Ure (Titan puzzle and the Hip-Flask puzzle). Both puzzles are very hard to solve. Titan Puzzle - Very hard metal puzzle and...
Heart in Heart - Metal Puzzle
The Heart in Heart is a captivating heart-shaped puzzle by Will Strijbos. This deceptively small yet weighty piece boasts exceptional construction, combining a gleaming brass base with a three-piece aluminum...
First Cross - Premium Metal Puzzle
Unlike conventional puzzles, the enigmatic creation of the First Cross defies expectations at every turn. Disassembling it poses a formidable challenge, yet the true test lies in the intricate process...
BrainStorm - Wooden Assembly Puzzle
The BrainStorm Puzzle is a curiously inventive variation on the classic, beloved Soma Cube. It’s made up of 12 wooden pieces, and the objective is to configure the pieces together...
Crazy Hard Puzzle - Group Special #2
If you are an experienced puzzler who loves to take on difficult challenges, then you might want to consider this set of puzzles. Created specifically for people who can solve...
6 sun 54 steps +1 Japanese Puzzle Box
A masterpiece! 54th moves high-quality Japanese Puzzle Box with a unique secret space inside the box! You need to unlock several sliding panels in a specific order before you can open the box....
Karakuri Puzzle Box XYK 13 steps
Buried beneath the surface of the Karakuri Puzzle Box XYK is a unique and bizarre system of wooden panels that guard the entrance to a secret chamber within. The goal,...
6 sun 54 steps +1 Japanese Puzzle Box
A masterpiece! 54th moves high-quality Japanese Puzzle Box with a unique secret space inside the box! You need to unlock several sliding panels in a specific order before you can open the box....
The First Cylinder Puzzle
Introducing another exquisite creation by puzzle designer, Wil Strijbos. The high-quality aluminum Cylinder Puzzle boasts a captivating design that not only appeals to the eye but also presents a great challenge....
10 Move Burr Puzzle - Piston Aluminum Burr
This captivating Burr puzzle features 6 precisely machined pieces that interlock seamlessly. While the name implies a 10-move solution, meaning the first piece disassembles in 9 moves. The 10-move Burr puzzle is...
Quaternary Box - 1,536 Step Karakuri Puzzle Box
This Quaternary Box stands out as undeniably one of the most formidable challenges among Karakuri puzzles you might ever encounter—no exaggeration! Opening it demands an impressive 1,536 steps, navigating a...
