We formulate a Euclidean spacetime lattice whose continuum limit is (2,2)
supersymmetric Yang-Mills theory in two dimensions, a theory which possesses
four supercharges and an anomalous global chiral symmetry. The lattice action
respects one exact supersymmetry, which allows the target theory to emerge in
the continuum limit without fine-tuning. Our method exploits an orbifold
construction described previously for spatial lattices in Minkowski space, and
can be generalized to more complicated theories with additional supersymmetry
and more spacetime dimensions
