cirq.experiments.GRID_STAGGERED_PATTERN

cirq.experiments.GRID_STAGGERED_PATTERN = (cirq.experiments.GridInteractionLayer(col_offset=0, vertical=True, stagger=True), cirq.experiments.GridInteractionLayer(col_offset=1, vertical=True, stagger=True), cirq.experiments.GridInteractionLayer(col_offset=1, vertical=False, stagger=True), cirq.experiments.GridInteractionLayer(col_offset=0, vertical=False, stagger=True), cirq.experiments.GridInteractionLayer(col_offset=1, vertical=False, stagger=True), cirq.experiments.GridInteractionLayer(col_offset=0, vertical=False, stagger=True), cirq.experiments.GridInteractionLayer(col_offset=0, vertical=True, stagger=True), cirq.experiments.GridInteractionLayer(col_offset=1, vertical=True, stagger=True))

A pattern of two-qubit gates that is hard to simulate.

This pattern of gates was used in the paper
to demonstrate quantum supremacy.