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Beginner3 qubitspar 2

Read the label

Three qubits, no superposition, no entanglement: put the register into |101⟩ with certainty. The only difficulty is the labelling. Bars are printed MSB-first — q2 q1 q0 — so |101⟩ means q2 = 1, q1 = 0, q0 = 1. Get the wrong qubit and the histogram will tell you immediately.

Stuck on the concept? Read Gates & Circuits.

What you are aiming at100 %
|000⟩
|001⟩
|010⟩
|011⟩
|100⟩
|101⟩
|110⟩
|111⟩
What you are producing right now100 %
|000⟩
|001⟩
|010⟩
|011⟩
|100⟩
|101⟩
|110⟩
|111⟩
Single qubit
Two qubit
Three qubit
Other

Select a gate to see what it does, then tap a wire — or Tab to a wire and press Enter — to place it.

Gates
0
Par
2
Pick a gate from the palette to start building.

Pick a gate, then tap a cell — or Tab into the grid and use the arrow keys and Enter — to place it.

Generate a fresh target state drill at this difficulty. Every generated puzzle is verified solvable by execution before you see it — the generator runs its own solution through the same simulator and grader that will judge yours.