Free tool

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.

Chess King

Checking

2586 Chess King

21 pieces in 13 part and color combinations, plus 1 minifigure.

The official piece count includes the 5 parts inside the set's minifigures, which this inventory lists separately. 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.

Show

Piece checklist

Red 10 pieces

  • Brick 1 x 1 Red Part 3005 Element 300521 ×2
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Red Part 6091 Element 6184782 or 609121 ×6
  • Brick Sloped Inverted 45° 4 x 4 Double with 4 x 2 Recessed Red Part 4854 Element 4643320 or 4603489 ×1
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Red Part 3794a ×1

Light Gray 3 pieces

  • Brick 1 x 2 x 2 with Inside Axle Holder Light Gray Part 3245b Element 4107533 ×1
  • Brick Sloped 45° 2 x 2 Light Gray Part 3039 Element 303902 ×1
  • Plate 2 x 2 Light Gray Part 3022 Element 302202 ×1

White 3 pieces

  • Antenna 1 x 4 with Rounded Top White Part 3957a ×1
  • Plate 1 x 3 White Part 3623 Element 6552105 or 6550144 ×2

Black 2 pieces

  • Brick Arch 1 x 4 Black Part 3659 Element 365926 ×2

Chrome Silver 1 piece

  • Rock 1 x 1 Crystal 5 Point Chrome Silver Part 30385 Element 4119342 ×1

Trans-Green 1 piece

  • Plate Round 1 x 1 with Solid Stud Trans-Green Part 6141 Element 6514057 or 6240221 1 spare in the box ×1

Trans-Red 1 piece

  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box ×1

Minifigures 1 figure

  • King with Red Plastic Cape 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.