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Mr Puzzle - We've got puzzles!

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Puzzles by Designer > Oskar van Deventer

ipp27gp16.jpgOskar lives in the Netherlands and is a telecommunications research engineer who started designing puzzles in 1978 and has since designed some hundreds of different mechanical puzzles not least of which are the wonderful take apart type puzzles he's designed for Hanayama in recent years. 

Oskar's talent is not just limited to disentanglement though, he's also very well know for wonderful maze puzzles, amazing twisty puzzles (details of the amazing 17x17x17 Guiness World Record holder here) and very complex interlocking burrs as well as many other puzzles you can even play online. 

View some videos of Oskar's puzzles on YouTube or play online:  a sliding block puzzle called ConSlide or go to Clickmazes for puzzling mazes to play online, all thanks to Oskars non-stop puzzle designing!

Oskar seen here visiting with us at IPP27 with another amazing puzzle designer Bill Cutler.

Daily Puzzle desk top calendar puzzle Daily Puzzle desk top calendar puzzle


Ages 8 to Adult.  365 puzzles in one!

Flip, stack and rotate the 10 puzzle tiles to create today's date.  That's a new puzzle every day! 
Use it to warm up your brain day after day, year after year.  For a fun stat to each day, challenge yourself and your friends to display the correct month and date.

Beware if you put it your desk at work that productivity might be reduced. Great Secret Santa  present for the boss!

Also a good educational puzzle for kids of all ages!

Includes One puzzle tray to stand your calendar on, 6 Double-sided Tiles for the month, 4 Double sided Tiles for the Day, Instruction booklet with solutions for every day and month.

Oskar's Free the Key maze Oskar's Free the Key maze


The object of the puzzle is to insert the key in the keyhole and put it on all the way up to the handle of the key.  And then take it off again.
Some of the teeth on the key are too tall to go though the slits in the disk.  So you may have to turn the key (or the disk) and move the disk up and down the key to navigate the maze to do this.
The puzzle was invented by Oskar van Deventer.

Anti Virus - The Bio-logical puzzle game Anti Virus - The Bio-logical puzzle game


Ages 7+ (loved by Adults!)

Multi-level Logic Game.  Develops strategic planning, visual and spatial perception.  60 Challenges.  5 levels.  Starter, Junior, Expert and Master.

Put your immune system to work and get rid of the virus before it can multiply itself.

Anti-virus is a sliding puzzle game with a new twist. Tiles that only slide diagonally and can move in groups!  Once you "catch the bug" it's hard to put this game down.

Playing this game is a very tactile experience;  the tile pieces are moulded such that they 'fit' your fingers very well.   They also fit the game board which is moulded so the pieces fit exactly and force the diagonal moves.  A quite addictive puzzle.

Duet - Cast Disentanglement Puzzle Duet - Cast Disentanglement Puzzle


Difficulty Level 5

At first glance it looks like there is only one ring hanging from the grid but there are in fact two rings attached with a magnetic force.

Can you separate the rings from the grid and return them to their original positions?

SOLD OUT 2 IN 1 - 12 piece interlocking burr SOLD OUT 2 IN 1 - 12 piece interlocking burr N/A

Oskar van Deventer (inventor of Oskarís Cube) designed this puzzle in Holland in 1985. He nearly always designs his puzzles in his head before completing detailed drawings for craftsmen to work from. He usually never makes the finished product himself.

This puzzle was originally made with 12 aluminium pieces but here MR PUZZLE has created a beautiful wooden version from Queensland Silver Ash.

The unusual pattern in which the 4 x 4 x 4 pieces are offset makes it an extremely difficult puzzle.



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