Constraints on the six ΛCDM parameters from the BEYONDPLANCK likelihood (blue contours) using the low-ℓ brute-force temperature-plus-polarization likelihood for ℓ ≤ 8 and the high-ℓ Blackwell-Rao likelihood for 9 ≤ ℓ ≤ 600. The red contours show corresponding constraints when adding the high-ℓ Planck 2018 TT-only likelihood for 601 ≤ ℓ ≤ 2500, while green contours show the same for the Planck 2018 likelihood.