Place quantum gates to rotate your qubits to exactly the right state on the Bloch sphere, then leave no uncertainty for the final measurement to ruin.
Each level asks you to transform the qubits into a target state by building a short gate circuit. A Bloch-sphere view shows where your state points. The catch is the measurement step: it collapses the state probabilistically, so you only win if you removed all uncertainty first.
Superposition makes the strange logic of quantum computing tangible, from gate rotations to irreversible measurement.
Building a short gate circuit to reach a target state, with a Bloch sphere showing where the state points, is qubit manipulation.
Making measurement the catch is the original emphasis.
That is the honest difficulty. Measurement collapses the state and destroys the superposition you built, so a quantum algorithm must arrange for the right answer to be likely before anything is read — which is why the field is about interference rather than about parallel search.
Superposition makes the strange logic of quantum computing tangible, from gate rotations to the irreversible collapse of a measurement. It's an original, free browser game with daily and practice levels that ramp through quantum-circuit tiers.