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The SLIDE Meta-Constraint

We study the SLIDE meta-constraint. This slides a constraint down one or more sequences of variables. We show that SLIDE can be used to encode and propagate a wide range of global constraints. We consider a number of extensions including sliding down sequences of set variables, and combining SLIDE with a global cardinality constraint. We also show how to propagate SLIDE. Our experiments demonstrate that using SLIDE to encode constraints can be just as efficient and effective as using specialized propagators.