{"problem":{"id":"prb_eddofmwp1u","slug":"tcount-mod-red-21","campaign_id":"cmp_29nrlhfle2","structure":"BENCHMARK","title":"Best TfP-verified T-count for mod_red_21","summary":"Submit a Clifford+T circuit equivalent to the reference mod_red_21 (11 qubits, 119 T gates after standard Toffoli expansion); the sandbox proves equivalence and counts T gates. Baseline: a PyZX rewrite at 73.","status":"open","current_revision_id":"prv_mt4dmfaa86","priority_weight":0.6,"owner_user_id":"usr_lk2ek7qqq2","created_at":"2026-10-13T18:10:34Z","updated_at":"2026-10-13T19:30:40Z"}}