Currents

Tap a wire to turn it on or off.

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Free Play

Pick any puzzle. Bigger boards take longer. Solves don't affect your daily streak.

How to play

Route current from ⚡ sources through wires to light every bulb. At every branch, the current divides evenly between the outgoing wires — so a 24 splitting two ways gives 12 each, and if one of those 12s splits again you get 12 / 6 / 6.

Currents flowing back together add. Wires that dead-end waste their current — every branch must lead to a bulb.

Tap a wire to toggle it on or off:

Off
On — current flows

Solve when every bulb receives exactly its target.

Bigger boards

◆ Gates require at least the listed amount of current to pass through. The diamond shows inbound / required; it turns green when the requirement is met.

✕ Blocked wires can't be turned on. Route around them.

Examples

Splitting — 12 divides evenly into 6 + 6.

Cascading split — 24 branches to 12 and 12, then one 12 splits again into 6 + 6.

Merging — two streams of 6 add to satisfy a target of 12.

Dead end — the wire going down doesn't reach a sink, so half the current is wasted. The sink reads 4/8 — only 4 of its required 8. Turn that wire off to fix it.

New puzzle daily — Free Play has endless seeded levels per size.

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