Skip to main content
Intermediate2 qubitspar 2

Broken CNOT

This was supposed to be a Bell pair, and the two gates are the right two gates — but the result is nothing like entangled. Fix it so half the shots read |00⟩ and half read |11⟩.

Stuck on the concept? Read Gates & Circuits.

What you are aiming at100 %
|00⟩
|01⟩
|10⟩
|11⟩
What you are producing right now100 %
|00⟩
|01⟩
|10⟩
|11⟩
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
2
Par
2
Pick a gate from the palette to start building.

Generate a fresh fix the bug 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.