Proves irreducibility of ReCom chains on triangular-lattice subsets with 2-merged districts and on 3xn grids, plus an infinite family of counterexamples on lattice subdivisions where the chain is reducible.
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Proves irreducibility of ReCom chains on triangular-lattice subsets with 2-merged districts and on 3xn grids, plus an infinite family of counterexamples on lattice subdivisions where the chain is reducible.