In offering this question I place myself within a position of prejudice. Although he has strategic sense I tend to believe that violent people, contrary to modern myths such as Hannibal Lector, cannot be sensibly called intelligent. Those who kill or get others to kill for them must be lacking in smarts not examples of it. Negative behaviour does not engender wealth or creativity and thereby limits the fulfillment and happiness of others.
Putin did not prosper in the KGB and his potential was rarely if ever mentioned. He rose above the parapet in 1991 when he was hired by a charity/socially concerned group and quickly embezzled some 120 million dollars. It was around this time that he created his system of political loyalty (group loyalty) based on money, the potential for him and others to become immensely wealthy.
A talented and highly intelligent politician I suggest is rare, reliant on cultural traits. Still, I concede my position is based largely on prejudice against killers (some killers have been intellectually remarkable such as Caravaggio but the list is short). Besides which, he is a very, very poor historian even given that he uses history to create rationales for war.
Think, how many strategic mistakes has he made? Surely, every action he has made?