Numberwire

Connect, reuse, and combine numbers and operations to hit several targets at the same time. Each puzzle gives you a few starting numbers and a set of operations that add, subtract, and hold values. Wire them together to build a circuit that reaches all the target values. One output can feed as many pieces as you like, so the same number can become two different answers at once. Play with mouse or touch. Drag from the right side of a piece to the left side of another to connect them. Tap or click a wire to remove it. Drag pieces to rearrange your board. Right-click a piece (long-press on mobile) to view information about it.

Connect, reuse, and combine numbers and operations to hit several targets at the same time. Each puzzle gives you a few starting numbers and a set of operations that add, subtract, and hold values. Wire them together to build a circuit that reaches all the target values. One output can feed as many pieces as you like, so the same number can become two different answers at once. Play with mouse or touch. Drag from the right side of a piece to the left side of another to connect them. Tap or click a wire to remove it. Drag pieces to rearrange your board. Right-click a piece (long-press on mobile) to view information about it.