Confidence: It's likely to be this, but I can't be certain.
Notes: This has has a distinctly bicoloured stem and also is evidently associated with deciduous trees. Consequently it is much more likely to be X. cisalpinus than X. chrysenteron, as now understood. It was recognised as not being a Boletus quite some time go now, and was placed in the genus Xerocomus, but recent work has further split Xerocomus and placed X. cisalpinus, X. chrysenteron and related species in Xerocomellus. Back in the days when I first learned my fungi we would certainly have called this "Boletus chrysenteron", but knowledge has moved on and we now know that X. chrysenteron is rather uncommon and associated with conifers. Amongst other characters it has a more uniformly red stem.