In these puzzles a range of possible pieces must be chosen from in order to complete the circuit diagram.

In harder puzzles the pieces can be rotated to fit too, and the differences between the correct and incorrect pieces are smaller.

Related Various others variations (click for details and samples):

Counting

Cube Count

Image Combination

Inverted Fit

Jigsaw Assembly

Matching Pieces

Reflection

Rotation

Shape Folding

Various others

Zoomed Detail

Sample Circuits puzzles (click to view press-ready PDF version):

Sample Circuit puzzle

Visual & Picture puzzles

Choose a main puzzle type to view sub-categories, variations and samples:

Colour by Pixel

Colour by Shape

Colour by Sticker

Dot-to-dot

Identical Pairs

Jigsaw Cut

Matchsticks

Mazes

Reassembly

Subdivision

Various others