2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/23764Evidence for strong pairing at arbitrary small J/t is provided in a t-J model on the checkerboard lattice for the sign of hopping leading to frustration in hole motion. Destructive quantum interferences suppress Nagaoka ferromagnetism when J->0 and reduce drastically coherent hole motion in the fluctuating singlet background. It is shown that, by pairing in various orbital symmetry channels, holes can benefit from a large gain of kinetic energy.4 pages, 6 figures Important changes in manuscript & figuresStrongly Correlated ElectronsSuperconductivitytext