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LEGO Missing Piece Checker

Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece and leave with the element ID LEGO asks for, or a link to buy the part.

LEGO Chess

Checking

40174 LEGO Chess

1,450 pieces in 100 part and color combinations.

Before you call it missing

Builders who report a missing piece often find it in one of these places. Tick each one off as you look.

Look-alike colors in this set

These parts appear in this set in two colors that are easy to confuse. If you are one short in one color, check whether it went in where the other color belongs. Each color has its own element ID in the parts list at the back of the instructions.

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Piece checklist

Plates 435 pieces

  • Plate 1 x 1 Black Part 3024 Element 302426 1 spare in the box Also in Dark Blue ×22
  • Plate 1 x 2 Black Part 3023 Element 302326 Also in Dark Blue ×39
  • Plate 2 x 2 Black Part 3022 Element 302226 ×14
  • Plate 2 x 3 Black Part 3021 Element 302126 ×2
  • Plate 1 x 1 Dark Blue Part 3024 Element 6554188 or 4184108 1 spare in the box Also in Black ×18
  • Plate 1 x 2 Dark Blue Part 3023 Element 6554191 or 4528981 Also in Black ×53
  • Plate 16 x 16 Dark Bluish Gray Part 91405 Element 6004927 ×8
  • Plate 1 x 1 Dark Red Part 3024 Element 4539114 or 4183901 2 spares in the box ×20
  • Plate 1 x 2 Dark Red Part 3023 Element 4539097 or 4162582 ×3
  • Plate 2 x 2 Dark Red Part 3022 Element 4585479 or 4163160 ×25
  • Plate 1 x 1 Light Bluish Gray Part 3024 Element 4211399 4 spares in the box ×44
  • Plate 1 x 12 Light Bluish Gray Part 60479 Element 4514846 ×16
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×32
  • Plate 1 x 3 Light Bluish Gray Part 3623 Element 4211429 or 3623194 ×40
  • Plate 1 x 8 Light Bluish Gray Part 3460 Element 4211425 ×8
  • Plate 2 x 10 Light Bluish Gray Part 3832 Element 4211462 ×2
  • Plate 2 x 2 Light Bluish Gray Part 3022 Element 4211397 ×9
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 2 spares in the box ×24
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×39
  • Plate 2 x 2 White Part 3022 Element 6552099 or 6548260 ×15
  • Plate 2 x 3 White Part 3021 Element 6550136 or 302101 ×2

Tiles 320 pieces

  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×68
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×64
  • Tile 2 x 2 Corner Black Part 14719 Element 6133722 ×8
  • Tile 2 x 2 with Groove Dark Blue Part 3068b Element 4205004 ×6
  • Tile 2 x 2 with Groove Dark Red Part 3068b Element 4539105 or 4177046 ×6
  • Tile 1 x 4 with Groove Light Bluish Gray Part 2431 Element 4211356 or 2431194 ×24
  • Tile 2 x 4 with Groove Light Bluish Gray Part 87079 Element 4560183 ×4
  • Tile 1 x 2 with Groove White Part 3069b Element 6548264 or 306901 ×68
  • Tile 1 x 4 with Groove White Part 2431 Element 6548255 or 243101 ×64
  • Tile 2 x 2 Corner White Part 14719 Element 6550151 or 6058329 ×8

Plates Special 148 pieces

  • Bracket 1 x 2 - 1 x 2 Inverted Black Part 99780 Element 6020193 ×12
  • Plate Special 1 x 1 with Tooth Black Part 49668 Element 4273590 ×4
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Black Part 15573 Element 6092585 ×8
  • Plate Special 1 x 2 with Door Rail Black Part 32028 Element 4107761 ×4
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Black Part 87580 Element 6663108 or 4565323 Also in Dark Blue ×32
  • Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Solid Anti-stud] Black Part 99206 Element 6052126 ×4
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Dark Blue Part 87580 Element 6389696 or 4565320 Also in Black ×2
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Dark Red Part 87580 Element 4613761 ×2
  • Plate Special 1 x 4 with 2 Studs, 3 Bottom Tubes Light Bluish Gray Part 92593 Element 4599498 ×16
  • Bracket 1 x 2 - 1 x 2 Inverted White Part 99780 Element 6548278 or 6070698 ×12
  • Plate Special 1 x 1 with Tooth White Part 49668 Element 6601935 or 4224792 ×4
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) White Part 15573 Element 6550152 or 6051511 ×8
  • Plate Special 1 x 2 with Door Rail White Part 32028 Element 6550168 or 4249563 ×4
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) White Part 87580 Element 6550157 or 6126046 ×32
  • Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Solid Anti-stud] White Part 99206 Element 6046979 ×4

Bricks 130 pieces

  • Brick 1 x 1 Black Part 3005 Element 300526 ×4
  • Brick 1 x 2 x 2 with Inside Stud Holder Black Part 3245c Element 4618852 ×2
  • Brick 2 x 2 Black Part 3003 Element 4103587 or 300326 Also in Dark Blue ×17
  • Brick 2 x 2 Corner Black Part 2357 Element 235776 or 235726 ×8
  • Brick 2 x 2 Dark Blue Part 3003 Element 4296785 or 4264580 Also in Black ×2
  • Brick 2 x 2 Dark Red Part 3003 Element 4539104 or 4249850 ×2
  • Brick 1 x 1 Light Bluish Gray Part 3005 Element 4211389 ×4
  • Brick 1 x 10 Light Bluish Gray Part 6111 Element 4211521 ×12
  • Brick 1 x 12 Light Bluish Gray Part 6112 Element 4211522 ×12
  • Brick 1 x 2 Light Bluish Gray Part 3004 Element 4211388 ×8
  • Brick 1 x 3 Light Bluish Gray Part 3622 Element 4211428 ×4
  • Brick 1 x 4 Light Bluish Gray Part 3010 Element 4211394 ×8
  • Brick 2 x 3 Light Bluish Gray Part 3002 Element 4211386 ×8
  • Brick 2 x 8 Light Bluish Gray Part 3007 Element 6037399 or 4211391 ×8
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×4
  • Brick 1 x 2 x 2 with Inside Stud Holder White Part 3245c Element 6550139 or 4113261 ×2
  • Brick 2 x 2 White Part 3003 Element 6552095 or 6548256 ×17
  • Brick 2 x 2 Corner White Part 2357 Element 6552088 or 6548253 ×8

Bricks Special 126 pieces

  • Brick Special 1 x 1 Studs on 4 Sides Black Part 4733 Element 473326 ×4
  • Brick Special 1 x 2 with 2 Studs on 1 Side Black Part 11211 Element 6138173 ×2
  • Brick Special 1 x 2 with Grille Black Part 2877 Element 287726 ×6
  • Brick Special 1 x 2 with Pin Dark Bluish Gray Part 2458 Element 4211087 ×6
  • Brick Special 1 x 1 with Studs on 2 Adjacent Sides Tan Part 26604 Element 6175968 ×96
  • Brick Special 1 x 1 Studs on 4 Sides White Part 4733 Element 4111971 or 473301 ×4
  • Brick Special 1 x 2 with 2 Studs on 1 Side White Part 11211 Element 6550150 or 6058177 ×2
  • Brick Special 1 x 2 with Grille White Part 2877 Element 6552093 or 287701 ×6

Bricks Curved 100 pieces

  • Brick Curved 2 x 1 No Studs [1/2 Bow] Black Part 11477 Element 6047276 ×8
  • Brick Curved 2 x 2 x 2/3 Black Part 15068 Element 6053077 ×42
  • Brick Curved 2 x 1 No Studs [1/2 Bow] White Part 11477 Element 6552145 or 6548276 ×8
  • Brick Curved 2 x 2 x 2/3 White Part 15068 Element 6552147 or 6047220 ×42

Plates Round Curved and Dishes 92 pieces

  • Dish 2 x 2 Inverted [Radar] Black Part 4740 Element 474026 ×1
  • Plate Round 1 x 1 with Open Stud Black Part 85861 Element 6168646 or 6100627 1 spare in the box ×3
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Blue Part 4032a Element 403223 ×12
  • Plate Round 1 x 1 Swirled Top Flat Silver Part 15470 Element 6058160 1 spare in the box ×1
  • Plate Round 1 x 1 with Solid Stud Flat Silver Part 6141 Element 4633691 2 spares in the box ×27
  • Plate Round 1 x 1 with Solid Stud Green Part 6141 Element 4569058 or 4519965 1 spare in the box ×4
  • Plate Round 1 x 1 Swirled Top Pearl Gold Part 15470 Element 6424005 or 6050916 1 spare in the box ×1
  • Plate Round 1 x 1 with Solid Stud Pearl Gold Part 6141 Element 4523159 2 spares in the box ×27
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Red Part 4032a Element 403221 ×12
  • Dish 2 x 2 Inverted [Radar] White Part 4740 Element 6601845 or 474001 ×1
  • Plate Round 1 x 1 with Open Stud White Part 85861 Element 6168642 or 4547649 1 spare in the box ×3

Bricks Round and Cones 36 pieces

  • Brick Round 2 x 2 Truncated Cone Black Part 98100 Element 4653822 ×8
  • Brick Round 2 x 2 [Grill] Black Part 92947 Element 6024730 ×10
  • Brick Round 2 x 2 Truncated Cone White Part 98100 Element 6609536 or 4649167 ×8
  • Brick Round 2 x 2 [Grill] White Part 92947 Element 6615536 or 4650644 ×10

Bricks Sloped 28 pieces

  • Brick Sloped 30° 1 x 2 x 2/3 Black Part 85984 Element 4548180 ×6
  • Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version] Black Part 15672 Element 6069000 or 4653087 ×8
  • Brick Sloped 30° 1 x 2 x 2/3 White Part 85984 Element 6550189 or 4547489 ×6
  • Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version] White Part 15672 Element 6552150 or 6550153 ×8

Tiles Round and Curved 24 pieces

  • Tile Round 2 x 2 with Bottom Stud Holder Blue Part 14769 Element 6133844 ×12
  • Tile Round 2 x 2 with Bottom Stud Holder Red Part 14769 Element 6066342 ×12

Technic Bricks 6 pieces

  • Technic Brick 1 x 2 [1 Pin Hole] Tan Part 3700 Element 4205107 or 370005 ×6

Bars, Ladders and Fences 4 pieces

  • Bar 3L Light Bluish Gray Part 87994 Element 6093527 or 6064033 2 spares in the box ×4

Tools 1 piece

  • Brick and Axle Separator v2.0 Orange Part 96874 Element 6240515 or 4654448 ×1

Tick each piece as you find it, or mark it missing.

When a piece really is missing

Ask LEGO

LEGO takes requests for pieces missing from a new set through its customer service site. The form asks for the set number and each piece's element ID, the number printed beside the piece in the parts list at the back of the instructions. This checker lists both.

Request a replacement from LEGO

Buy the piece

Mark a piece missing and your list links it to an eBay search for that part, which also covers pieces from older or second-hand sets.

Keep a record

Copy or download your missing list (the CSV opens in any spreadsheet), or print the whole checklist and tick pieces off on paper. Your marks stay in this browser, so you can check a big set over several sittings.

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