How to Make a Missing Puzzle Piece

So you’ve spent the afternoon putting together a jigsaw puzzle, but then the unthinkable happens—after looking everywhere, you realize that there’s a missing piece. If you’re the artsy type, the next question in your mind is probably predictable: how do you make a replacement? We’re here to help by showing you how to make a new puzzle piece by hand or on a computer. Here’s our complete guide on how to make a missing puzzle piece.

Method 1

Method 1 of 2:

Drawing a Missing Puzzle Piece by Hand

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After putting together the rest of the puzzle, dislodge the squares surrounding the missing piece.^{[1]XResearch source}
To make sure that the pieces you removed from the completed puzzle don’t fall apart, use a few pieces of clear, easily removable tape to stick the backs of the pieces together.^{[2]XResearch source}
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3
Cut out a piece of cardboard large enough to replace the piece. Ideally, your cardboard should be of a similar thickness to the rest of the puzzle. It’s okay if the cardboard piece is wide or long—you’ll be trimming it to fit the puzzle anyways.^{[3]XResearch source}
- If you don’t have cardboard that’s the right thickness, use a cereal box. Cut out squares of the cereal box and stack them on top of one another until they’re a similar thickness to the puzzle. Then glue them together with a glue stick and place them under a heavy object to dry.^{[4]XResearch source}
- If you’re using a cereal box, be sure that the brown side of the box is facing outwards on both sides after you’ve glued the pieces together.
Use a sharp pencil for this so that you can be as precise as possible. Be sure that you’re tracing as close to the edges of the surrounding pieces of the puzzle as possible.^{[5]XResearch source}
5
Cut out the traced part of the cardboard. Start by using a pair of scissors to remove the bulk of the cardboard surrounding the traced piece. Then, focus on cutting out the curves of the traced cardboard with as much precision as possible.^{[6]XResearch source}
- When cutting out the finer curves of the traced piece, you may want to use a craft knife and cutting board instead of scissors. This can help you be more precise.^{[7]XResearch source}
- If you’re unsure how well you cut the piece, try fitting it into the surrounding parts of the puzzle. If it’s a snug fit, you’re good to go.
- If the piece is too large when you try to fit it into the puzzle, trim it some more. If it’s too small, you may want to consider starting over and retracing the missing puzzle.
For a hardier surface than plain printer paper, use poster board or specialized adhesive paper. A regular glue stick works well, but other kinds of craft glue work just as well.^{[8]XResearch source}
Make sure that there is no paper hanging over the edges. You can use a pair of scissors for this, or a craft knife and cutting board if you prefer.^{[9]XResearch source}
8
Fit the replacement piece into the puzzle and draw the design. Use the puzzle box for guidance on what the missing piece should look like, and start by using an erasable pencil in case you make a mistake. Fill in the colors with colored pencils, paint, or markers.^{[10]XResearch source}
- Be careful not to get color on the surrounding pieces. After using a pencil to outline what the piece should look like, consider removing the replacement piece from the rest of the puzzle before coloring it.
9
Finish the piece with a spray varnish. Lightly spray your piece for a couple of seconds to give it a glossy finish that protects it from future wear-and-tear. Let it dry for a few hours. While this isn’t a strictly necessary part of making a replacement puzzle piece, it can help your piece blend in with the rest.^{[11]XResearch source}
- Your local art supply store will have spray varnishes for sale, which may also go by the name of spray sealants. A sealant used for acrylic paintings can work well here.

Method 2

Method 2 of 2:

Using a Computer to Make a Missing Puzzle Piece

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1
Scan a picture of the completed puzzle on the box. Place the box of the puzzle, which likely contains the puzzle’s full image, into a high-quality scanner. Download this image onto your computer.^{[12]XResearch source}
- If you don’t have a scanner, visit your local library or copy shop. There should be scanners available for use at these locations.
- If you don't have a scanner, you can also try taking a photo of the completed puzzle on the box instead.
- You may also be able to find a copy of the image online, but be careful—it’s possible that the puzzle makers altered the dimensions of the image, or that the resolutions available online are low-quality.
2
Crop the image to the area surrounding the missing piece. Use a free photo editing software, like GIMP, to edit the image. Using the crop tool, click on a point near the missing puzzle piece, and drag the box to crop the larger image into a smaller area surrounding the missing piece.^{[13]XResearch source}
- If you have Photoshop or have access to another photo editing software, you can use this instead.
3
Resize the area of the missing piece. Start by taking your real-world puzzle and using a ruler to measure the length and width of the area that you’ve cropped digitally on your photo editing software. Enter this information into your photo editing software—the option to do this may be located under the “Image Size” tab, depending on what software you’re using.^{[14]XResearch source}
- For example, if the area surrounding the missing puzzle piece that you’ve cropped in your photo editing software is 5 cm long and 4 cm wide in the real world, enter this information into the software to change the cropped area’s dimensions.
Using matte-finished paper will make your replacement puzzle piece look all the more polished. However, it’s a good idea to first print the image on cheaper paper, so that you can double-check to make sure that it’s the right size before wasting high-quality sheets.^{[15]XResearch source}
Adjust the placement of the image so that it lines up with the rest of the puzzle, then use a sharp pencil to trace its contours with the surrounding puzzle pieces.^{[16]XResearch source}
6
Glue the image to a piece of cardboard, then cut it out. Use a glue stick to adhere the image to the cardboard, then use a pair of scissors to cut out the area surrounding the traced part of the image. For getting precise cuts on the curves of the puzzle piece, try using a craft knife.^{[17]XResearch source}
- Check to make sure that the cardboard isn’t too thick for the puzzle before using it as your replacement piece. If the cardboard is too thick, stack multiple pieces of a cereal box together instead until they reach the right thickness, then glue them together.
7
Finish the replacement piece with a spray varnish. Spray it on the piece, then let it dry for a few hours. A spray varnish will make your replacement piece look glossy and keep it from future wear-and-tear. This step is optional, but it can help your replacement piece blend in with the rest of the puzzle.^{[18]XResearch source}
- Check your local art supply store to find a spray varnish. This product may also be called “spray sealant.” A spray sealant used for sealing acrylic paintings is a great option.

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Tips

If you believe that the puzzle you received was defective and missing a piece out of the box, contact the manufacturer. They may be able to provide you with a new puzzle.
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It’s also possible to get a missing puzzle piece professionally made. The Jigsaw Doctor is a professional service for replacing missing puzzle pieces, or you might want to get in touch with an independent artist to see if they can help.
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