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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.

Batman: The Riddler Chase

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76012 Batman: The Riddler Chase

292 pieces in 124 part and color combinations, plus 3 minifigures.

LEGO counts 304 pieces. This inventory comes from a separate parts catalog and lists 305, including the 13 parts inside the minifigures; the two do not always count the same elements, so their totals differ. Spare parts are counted in neither figure.

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

Black 85 pieces

  • Bracket 1 x 2 - 1 x 2 Black Part 99781 Element 6016172 ×3
  • Bracket 5 x 2 x 1 1/3 with Holes, Pin Bottom Black Part 11215 Element 6039194 ×3
  • Brick Curved 3 x 1 No Studs Black Part 50950 Element 4251161 ×2
  • Brick Curved 4 x 2 No Studs Black Part 93606 Element 4647286 ×1
  • Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Black Part 61409 Element 4541191 Also in Dark Bluish Gray ×6
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Black Part 54200 Element 4504382 or 4287159 1 spare in the box ×2
  • Brick Sloped 45° 2 x 1 Triple with Ovoid Bottom Pin Black Part 3048c Element 304826 ×1
  • Brick Sloped Inverted 45° 2 x 1 Black Part 3665 Element 366526 ×2
  • Brick Wedged, Sloped 45° 4 x 2 Left Black Part 43721 Element 6277462 or 4570401 ×2
  • Brick Wedged, Sloped 45° 4 x 2 Right Black Part 43720 Element 6279754 or 4570397 ×2
  • Hinge Brick 2 x 2 Top Plate Thin Black Part 6134 Element 4124096 or 613426 ×4
  • Plate 1 x 10 Black Part 4477 Element 447726 ×1
  • Plate 2 x 16 Black Part 4282 Element 428276 or 428226 ×1
  • Plate 2 x 4 Black Part 3020 Element 302026 ×3
  • Plate 2 x 8 Black Part 3034 Element 303426 ×2
  • Plate Special 1 x 1 with Tooth Black Part 49668 Element 4273590 ×2
  • Plate Special 1 x 2 with Door Rail Black Part 32028 Element 4107761 ×2
  • Plate Special 1 x 8 with Door Rail Black Part 4510 Element 4286009 or 451026 ×2
  • Plate Special 2 x 2 with Wheels Holder Wide - Technic Pins Black Part 47720 Element 6354604 or 4217725 ×2
  • Technic Ball Joint Black Part 32474 Element 4290713 or 4143539 ×1
  • Technic Beam 1 x 7 Bent (4 - 4) Thick Black Part 32348 Element 6278125 or 4128593 ×2
  • Technic Disc 3 x 3 Black Part 2723 Element 4218868 or 4121619 ×2
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×4
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×5
  • Tile 2 x 2 with Groove Black Part 3068b Element 306826 ×7
  • Tyre 14 x 6 Solid Smooth Black Part 50951 Element 4246901 ×2
  • Tyre 30.4 x 14 Offset Tread [Centre Band] Black Part 92402 Element 4619323 ×2
  • Tyre 37 x 22 ZR Black Part 55978 Element 6518542 or 4499234 ×4
  • Weapon Batarang Black Part 98721 Element 4650620 1 spare in the box ×1
  • Wedge Plate 2 x 4 Black Part 51739 Element 4531412 ×4
  • Wedge Plate 4 x 2 Left Black Part 41770 Element 4161332 ×2
  • Wedge Plate 4 x 2 Right Black Part 41769 Element 4160869 ×2
  • Wedge Plate 6 x 3 Left Black Part 54384 Element 4283047 ×1
  • Wedge Plate 6 x 3 Right Black Part 54383 Element 4283046 ×1
  • Wheel Arch, Mudguard 1 x 4 1/2 Black Part 50947 Element 6551384 or 4277774 ×2

Dark Bluish Gray 62 pieces

  • Bracket 1 x 2 - 1 x 2 Inverted Dark Bluish Gray Part 99780 Element 6000606 ×6
  • Brick Curved 4 x 1 No Studs [Stud Holder with Symmetric Ridges] Dark Bluish Gray Part 11153 Element 6042955 ×2
  • Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Dark Bluish Gray Part 61409 Element 4540386 or 4521185 Also in Black ×2
  • Brick Sloped 45° 2 x 1 with 2/3 Cutout [Original Version] Dark Bluish Gray Part 92946 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Dark Bluish Gray Part 3660 Element 4211000 ×2
  • Hinge Brick 1 x 2 Base Dark Bluish Gray Part 3937 Element 4211066 ×7
  • Hinge Panel 6 x 3 Dark Bluish Gray Part 2440 Element 6003058 ×1
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 ×2
  • Plate 1 x 4 Dark Bluish Gray Part 3710 Element 4211001 ×4
  • Plate 2 x 6 Dark Bluish Gray Part 3795 Element 4211002 ×2
  • Plate Round 1 x 1 with Solid Stud Dark Bluish Gray Part 6141 Element 4210633 2 spares in the box ×8
  • Plate Special 1 x 2 with 1 Stud with Groove (Jumper) Dark Bluish Gray Part 3794b Element 4211119 ×4
  • Plate Special 1 x 2 with Pin Hole on Top Dark Bluish Gray Part 11458 Element 6019987 ×2
  • Plate Special 2 x 2 with 1 Pin Hole [Complete Underside Rib] Dark Bluish Gray Part 10247 Element 6047417 ×3
  • Technic Axle 4 with Stop Dark Bluish Gray Part 87083 Element 6083620 or 4560177 ×4
  • Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle Dark Bluish Gray Part 11214 Element 6015356 ×2
  • Technic Beam 1 x 3 Thick Dark Bluish Gray Part 32523 Element 32523199 or 4210751 ×2
  • Technic Brick 1 x 4 [3 Pin Holes] Dark Bluish Gray Part 3701 Element 4213607 or 370127 ×2
  • Tile 1 x 1 with Groove Dark Bluish Gray Part 3070b Element 4210848 1 spare in the box ×2
  • Tile 1 x 6 with Groove Dark Bluish Gray Part 6636 Element 4210651 ×1
  • Tile 2 x 4 with Groove Dark Bluish Gray Part 87079 Element 4560184 ×1
  • Vehicle Base 4 x 12 x 3/4 with 4 x 2 Recessed Center with Smooth Underside Dark Bluish Gray Part 52036 Element 4259673 ×1

Light Bluish Gray 57 pieces

  • Bar 1L with Top Stud and Two Side Studs Light Bluish Gray Part 92690 Element 4640844 or 4600518 ×2
  • Bracket 1 x 2 - 2 x 2 Inverted Light Bluish Gray Part 99207 Element 4654580 ×6
  • Brick Curved 3 x 1 No Studs Light Bluish Gray Part 50950 Element 4251163 ×2
  • Engine / Air Scoop 2 x 2 Light Bluish Gray Part 50943 Element 4259422 ×1
  • Hinge Brick 1 x 2 Top Plate Thin Light Bluish Gray Part 3938 Element 4211470 ×4
  • Hinge Cylinder 1 x 2 Locking with 2 Click Fingers and Axle Hole, 9 Teeth Light Bluish Gray Part 30553 Element 4222047 ×1
  • Hinge Plate 1 x 2 Locking with 1 Finger On End, without Groove Light Bluish Gray Part 44301b Element 6266231 ×1
  • Plate 1 x 1 Light Bluish Gray Part 3024 Element 4211399 1 spare in the box ×2
  • Plate 2 x 2 Light Bluish Gray Part 3022 Element 4211397 ×2
  • Plate 2 x 3 Light Bluish Gray Part 3021 Element 4211396 ×3
  • Plate 4 x 8 Light Bluish Gray Part 3035 Element 4211407 ×1
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Light Bluish Gray Part 2654 Element 4278273 or 4276273 ×2
  • Plate Special 2 x 2 with Pin on Bottom Light Bluish Gray Part 2476a Element 6276848 or 4237084 ×4
  • Plate Special 2 x 2 with Wheel Holder Light Bluish Gray Part 4488 Element 6018081 or 4211496 ×1
  • Plate Special 2 x 2 with Wheels Holder Wide - Technic Pins Light Bluish Gray Part 47720 Element 4529120 or 4219243 ×2
  • Technic Beam 1 x 2 Thin Light Bluish Gray Part 41677 Element 6348143 or 4211741 ×1
  • Technic Brick 1 x 16 [15 Pin Holes] Light Bluish Gray Part 3703 Element 4211443 ×2
  • Technic Brick 1 x 2 [1 Pin Hole] Light Bluish Gray Part 3700 Element 4211440 ×2
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Light Bluish Gray Part 32123b Element 6271165 or 4211573 2 spares in the box ×6
  • Technic Pin 1/2 with 2L Bar Extension Light Bluish Gray Part 61184 Element 6347715 or 4520320 ×2
  • Technic Pin 1/2 without Friction Ridges Light Bluish Gray Part 4274 Element 4274194 or 4211483 1 spare in the box ×1
  • Tile Special 1 x 2 Grille with Bottom Groove Light Bluish Gray Part 2412b Element 4211350 ×2
  • Tile Special 1 x 2 with Handle Light Bluish Gray Part 2432 Element 4211357 ×1
  • Wedge Plate 2 x 4 Light Bluish Gray Part 51739 Element 4507056 or 4252368 ×1
  • Wheel 11 x 8 with Center Groove Light Bluish Gray Part 42610 Element 4211758 ×2
  • Wheel 18 x 14 with Pin Hole, Fake Bolts and Shallow Spokes Light Bluish Gray Part 55981 Element 6109684 or 4299119 ×2
  • Wheel 8 x 9 with Hole Notched for Wheels Holder Pin, Re-inforced Back Light Bluish Gray Part 74967 Element 6011375 ×1

Green 18 pieces

  • Brick Curved 2 x 1 No Studs [1/2 Bow] Green Part 11477 Element 6047426 ×4
  • Plate 1 x 4 Green Part 3710 Element 371028 ×5
  • Plate 2 x 3 Green Part 3021 Element 302128 ×1
  • Tile 1 x 2 with '100' Banknote Print Green Part 3069bpr0100 Element 4295260 or 82317 ×4
  • Tile 2 x 2 with Groove Green Part 3068b Element 4107762 or 306828 ×1
  • Tile 2 x 4 with Groove Green Part 87079 Element 4566179 ×1
  • Wedge Plate 4 x 2 Left Green Part 41770 Element 4543262 or 4161334 ×1
  • Wedge Plate 4 x 2 Right Green Part 41769 Element 4543259 or 4160871 ×1

Red 12 pieces

  • Plate 2 x 4 Red Part 3020 Element 302021 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Red Part 4032a Element 403221 ×3
  • Plate Special 1 x 2 with Bar Up [Horizontal Arm 5mm] Red Part 88072 Element 6261351 or 4611701 ×1
  • Steering Stand 1 x 2 with Black Steering Wheel Red Part 3829c01 Element 9552 ×1
  • Technic Brick 1 x 2 [2 Pin Holes] Red Part 32000 Element 4179355 or 4101764 ×2
  • Technic Bush Red Part 3713 Element 6271820 or 4227155 2 spares in the box ×4

Pearl Gold 9 pieces

  • Cone 1 x 1 [Top Groove] Pearl Gold Part 59900 Element 4529247 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Pearl Gold Part 2412b Element 4490599 ×2
  • Tool Crowbar Pearl Gold Part 92585 Element 6056774 ×1
  • Wheel 30.4 x 20 without Pinholes, with Reinforced Rim Pearl Gold Part 56145 Element 4648531 ×4

Trans-Red 9 pieces

  • Dish 2 x 2 Inverted [Radar] Trans-Red Part 4740 Element 6580377 or 6245303 ×2
  • Plate 1 x 2 Trans-Red Part 3023 Element 6514003 or 6240212 ×7

Blue 8 pieces

  • Plate 2 x 2 Corner Blue Part 2420 Element 242073 or 242023 ×2
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×4
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Blue Part 6558 Element 4514553 ×2

Yellow 8 pieces

  • Brick Sloped 45° 2 x 2 Yellow Part 3039 Element 303924 ×1
  • Plant, Banana Yellow Part 33085 Element 4114584 ×1
  • Plate 2 x 4 Yellow Part 3020 Element 302024 ×3
  • Steering Stand 1 x 2 with Black Steering Wheel Yellow Part 3829c01 Element 9553 ×1
  • Tile 1 x 6 with Groove Yellow Part 6636 Element 6388488 or 663624 ×2

Trans-Orange 6 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Orange Part 6141 Element 6514059 or 6240227 ×3
  • Wave / Flame Rounded with Base Rim Trans-Orange Part 6126b Element 6167741 or 4261397 ×2
  • Windscreen 10 x 6 x 2 Curved Trans-Orange Part 45705 Element 6507926 or 6386002 ×1

Dark Tan 4 pieces

  • Minifig Neckwear Backpack [Open] Dark Tan Part 92590 Element 4598955 ×2
  • Technic Axle 5 with Stop Dark Tan Part 15462 Element 6055631 ×2

Trans-Clear 4 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Clear Part 54200 Element 6245250 or 4244362 1 spare in the box ×4

White 3 pieces

  • Plate 1 x 6 White Part 3666 Element 6552107 or 6548265 ×3

Trans-Dark Blue 2 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Dark Blue Part 6141 Element 6514055 or 6240214 1 spare in the box ×2

Trans-Green 2 pieces

  • Plate 1 x 1 Trans-Green Part 3024 Element 6513967 or 6252046 1 spare in the box ×2

[No Color/Any Color] 2 pieces

  • Comic Book, Super Heroes, DC Comics, Batman [No Color/Any Color] Part 6070937 Element 6070939 or 6070937 ×1
  • Sticker Sheet for Set 76012-1 [No Color/Any Color] Part 15872 Element 6055641 ×1

Tan 1 piece

  • Plate 2 x 2 Tan Part 3022 Element 4114084 or 302205 ×1

Minifigures 3 figures

  • The Flash Minifigure, checked as a whole figure ×1
  • The Riddler in Green and Dark Green Outfit with Zipper Minifigure, checked as a whole figure ×1
  • Batman, Dark Bluish Gray Suit, Black Cape and Cowl, Light Nougat Head, Black Hips, Muscle Outline Minifigure, checked as a whole figure ×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.