Let g≥2 be an integer and Rg​⊂N be the set of
repdigits in base g. Let Dg​ be the set of Diophantine triples
with values in Rg​; that is, Dg​ is the set of all
triples (a,b,c)∈N3 with c<b<a such that ab+1,ac+1 and ab+1
lie in the set Rg​. In this paper, we prove effective finitness
results for the set Dg​