Alpinemaster: Strategically, the Bishop Pair is considered superior to the Knight Pair or Bishop + Knight combo. The effective advantage is certainly greater in open positions with fewer pawns, but in this complicated endgame, arising from move 36 on, takes on a slower, more positional nature that the Dutch prodigy handles with utmost grace.
40...Bd7 emphasizes the nature of the advantage given by the Bishops: range. The White King has been paralyzed and rendered useless to prevent advancement of the passed h-pawn. Meanwhile, the Knight's hardly support the advance of the passed White f-pawn.
After 47...Bd6!? the Giri's point is clear: in the seemingly impotent repetition of moves exhibited moves 40-47 of the Kings, Black's General is poised to invade on the Queenside should the Bishop Pair be removed via 48. Kxd6 Kxd6 - and the Q-side is toast.
After Black refuses to surrender the Queenside via the KxB exchange, the dark-squared Bishop assumes his role as a distance attacker and along with the Bishop on f5 dominates the enemy Kingside long enough for his majesty to join the attack: once all is ready 54...h3! fully demonstrating the long-range authority of the Priestly Pair.
63...Bxd3 finally surrenders the Bishop Pair in exchange for a Queen. Having wrecked havok all over the board, the Light Squared Bishop lays down his life for the only defender positioned to effect the h-pawn .
After the 68th move, White resigns in light of 69. Kd3 Bc5 and after removing the f-pawn the Black King will aid the final, insurmountable attack.
An excellent demonstration of the Strategic Superiority of the Bishop Pair by a young rising star.