Napoleon's Retreat from Moscow

This puzzle was published by the Russian Master Alexander Petrov in Schachzeitung #6, in 1824. It is more than a puzzle, it is a morality tale.

The Black king represents Napoleon, the White king is Czar Alexander I, the h1-a8 diagonal is the Berezina River, b1 (where the Black king currently is) represents Moscow, h8 represents Paris, and the White queen is the Russian marshall, Kutuzov. The White knights, representing the Russian cavalry, start by chasing Napoleon away, 1 Nd2+ Ka2 2 Nc3+ Ka3 3 Ndb1+ Kb4 4 Na2+ Kb5 5 Na3+ (Nbc3+) Ka6. Napoleon could now have been mated, after crossing the Berezina River, 6 Qa8#, but Marshall Kutuzov, was always avoiding direct combat with Napoleon, and the Russians let him escape back to Paris. So instead, the Russian cavalry continue chasing Napoleon, 6 Nb4+ Ka7 7 Nb5+ Kb8 8 Na6+ Kc8 9 Na7+ Kd7 10 Nb8+ Ke7 11 Nc8+ Kf8 12 Nd7+ Kg8 13 Ne7+ Kh8, and now, with Napoleon being driven back to Paris, he is mated by a final blow of the Czar, and Marshall Kutuzov, 14 Kg2# (Kg3#),