All numbers are in a slide.Slides from left to right. Under number 4 is the free hole. A difficult puzzle, but it can be solved. Assignments on the back of the puzzle.Material acrylic.

This puzzle is a copy produced by puzzle design Ton Delsing.Slid the numbers into order. Start: remove orange center piece .Green pieces are immovable.Material MDF.

This puzzle is a copy produced by puzzle design Ton Delsing .Goal: make all wind directions in order. Rotation is allowed.Material arylic.

Remove my logo. Slide the spider to the center of the web. The finish image should be the same as the start image, but with the spider in the web. The puzzle has horizontal and vertical blockades inside. There are different assignments on the back of the puzzle. Material Acrylic

Change ROOD with GEEL  Bottom slider left to right. & piece immovable.Pieces cannot fall out due to transparent top plate.Material Acryl.   

Put the same colours together. The white center piece can only slide up and down.Pieces cannot fall out due to transparent top plate.Matererial. Acryl.

Slide de numbers from 1 to 14. The center piece can only slide up and down. Pieces cannot fall out through the transparent top plate. More assignments on the back of the puzzle. Material MDF.

Put the 15 numbers in order.  Pieces can't fall out because of transparent top plate,More assignments on the back of the puzzle. Material MDF.

Exchange PUZZLES  with PUZZLES. The center piece can only slide up and down. Pieces cannot fall out through the transparent top plate. More assignments on the back of the puzzle.  Material MDF.

6 PIECES 20X20 MM , 1 SLIDER 20X40 MM. BLOCKADE BETWEEN U & LLetters are engraved. 180 START POSITONS.  (2 Z PIECES)Place the letter in randomly.

12 pieces with inlaid letters. Pieces with tongue and groove. All pieces 20x20 mmSlide from the starting position ALBWHITE CK!!ET TO !WHITE !BLACK! On the back there is a slide up and down. This slide changes the free hole.Then slide to BLACK! WHITE!  easy?Material Acrylic. 

Sanib – RexDescription:For sale: the Sanib puzzle by Rex, appreciated for its original design and clever mechanism. This puzzle is perfect for collectors and enthusiasts looking for an elegant and challenging experience. Sanib offers a unique solving journey, blending thoughtful problem-solving and dexterity. • Condition: Very good condition, handled with care. Photos available upon request. • Price: €59, non-negotiable. • Payment: PayPal Friends and Family only. Please do not send pay...

Mindanao – RexDescription:For sale: the Mindanao puzzle by Rex, known for its refined design and clever mechanism. This puzzle is perfect for collectors and enthusiasts seeking an elegant and challenging experience. Mindanao offers a unique solving journey, blending thoughtful problem-solving and dexterity. • Condition: Very good condition, handled with care. Photos available upon request. • Price: €69, non-negotiable. • Payment: PayPal Friends and Family only. Please do not send payme...

Luzon – RexDescription:For sale: the Luzon puzzle by Rex, appreciated for its original design and clever mechanism. This puzzle is perfect for collectors and enthusiasts looking for an elegant and challenging experience. Luzon offers a unique solving journey, blending thoughtful problem-solving and dexterity. • Condition: Very good condition, handled with care. Photos available upon request. • Price: €69, non-negotiable. • Payment: PayPal Friends and Family only. Please do not send pay...

Set: Puzzle Box 1, 2 & 3 – Jean-Claude ConstantinDescription:For sale: a full set lot including Puzzle Box 1, 2, and 3 from the renowned designer Jean-Claude Constantin. These mechanical puzzles are valued for their build quality and clever mechanisms. This set is perfect for collectors and puzzle enthusiasts looking to discover or complete the series. • Condition: Very good condition, handled with care. Photos available upon request. • Price: €39, non-negotiable for the complete set. â€...

The most difficult puzzle I have designed. The puzzle consists of 15 pieces. Some pieces can be slid under the edge. Goal: Make the numbers 1 to 9 from left to right in the frame There are different possibilities. But there is only one possibility to slide to a magic square. If you carefully open the puzzle (press the bottom of the title square piece) you will see a 4. Remember that.

Copy of this puzzle made by puzzle design Ton Delsing in 2011