Jigsaw enthusiasts each have their own method of tackling a tricky puzzle - some start with the edges while others work sections of the image at a time . But the latest design will test even the most methodical puzzler . Each of the 1,000 pieces in the '1000 Colours ' puzzle is a completely different colour to the next and they have to be placed according to the CMYK system . '1000 Colours ' ( show ) was designed by illustrator Clemens Habicht . Each of its 1,000 pieces are a different colour on the CMYK system . CMYK refers to cyan , magenta , yellow , and key ( black ) inks used in printing . CMYK refers to the four inks typically used in colour printing - cyan , magenta , yellow , and key or black . The puzzle was designed by Paris-based graphic artist Clemens Habicht . Mr Habicht said : 'The idea came from enjoying the subtle differences in the blue of a sky in a particularly brutal jigsaw puzzle . ' I found that without the presence of image detail to help locate a piece , I was relying only on an intuitive sense of colour . Mr Habicht said : 'The idea came from enjoying the subtle differences in the blue of a sky in a particularly brutal jigsaw puzzle . ' I found that without the presence of image detail to help locate a piece , I was relying only on an intuitive sense of colour ' Despite being touted as the world 's most difficult puzzle , Mr Habicht said it is easier than it first appear . 'Unlike ordinary puzzles where you are in effect redrawing a specific picture from a reference , you have a sense of where every piece belongs compared to every other piece , ' Mr Habicht said . 'And this was much more satisfying to do than the areas with image details . ' And despite being touted as the world 's most difficult puzzle , Mr Habicht said it is easier than it first appear . 'What is strange is that unlike ordinary puzzles where you are in effect redrawing a specific picture from a reference , you have a sense of where every piece belongs compared to every other piece , ' he said . The completed puzzle measures 19 inches ( 50cm ) by 27 inches ( 70cm ) and it costs $ 70 AUD ( £36 ) . Limited numbers of the jigsaw are available from Australian company Lamington Drive . The current run of 1000 Colour ( pieces pictured ) is the second edition of the puzzle . It first went on sale last year , and the firm said it is working on producing a third . It had previously been thought the human eye could n't see infrared light . However , researchers have revealed that under certain conditions , the retina can sense infrared light after all . An international team of researchers used cells from the retinas of mice and people . By firing powerful lasers that emit pulses of infrared light , the researchers found that light-sensing cells in the retina sometimes get a double hit of infrared energy . When that happens , the eye is able to detect light that falls outside the visible spectrum . 'There is a real logic in doing that . It is weirdly soothing and therapeutic . 'As each piece clicks perfectly into place , just so , it 's a little win - like a little pat on the back . ' The completed puzzle measures 19 inches ( 50cm ) by 27 inches ( 70cm ) . It costs $ 70 AUD ( £36 ) and is published by Australian company Lamington Drive . It is the second edition of the puzzle , which first went on sale last year , and the firm said it is working on producing a third . There are limited numbers of the puzzle available to order from Lamington Drive 's website and shipping takes up to 10 days .
The '1000 Colours ' jigsaw was designed by illustrator Clemens Habicht . Each of its 1000 pieces are a different colour on the spectrum . Designer said the jigsaw is more satisfying to complete than image puzzles . $ 70 AUD ( £36 ) puzzle is available from Australian firm Lamington Drive .