<69...Rd2. Simpler is 69...Kd8!, of course.
70.Rc5 Ke7 71.Rd5 Rh2 72.Kd4. White achieved a lot – he cut the Black's king on the d-file and prepared his own king's march to c5, but this is not enough to claim a victory.
72...Ke6? A big mistake! The simplest way to hold the balance is 72...Rc2! with the idea 73.c4 Rd2+ 74.Kc5 Rxd5+! 75.Kxd5 Kd7, and Black has the opposition – draw.
73.Kc5! Now White wins.
73...Rh8 74.Rd6+! The only move. 74.c4? allows Black to escape by 74...Rc8+ 75.Kb5 Rb8+ 76.Ka6 Rc8 77.Rd4 Ke5!
74...Ke7 75.c4 Rc8+ 76.Rc6 Rb8 77.Rc7+ Kd8. Black's attempt to achieve elementary Philidor positions fails, because his rook is passive.
78.Rh7 Rb1 79.Kc6! And Black's king cannot get to the shorter side of the board.
79...Rg1 80.Rh8+ Ke7 81.c5 Rc1.
82.Rb8. As you can see, Pavel also was nearing collapse at this point. Much more convincing is 82.Rc8!
82...Rc2 83.Rb5 Kd8 84.Rb8+ Ke7 85.Rb1 Kd8 86.Rh1 Ke7. Akobian should have tested his opponent by 86...Rc3, after which White must find the maneuver 87.Rh8+ Ke7 88.Rc8!
87.Rd1. The rest is very easy.
87...Ra2 88.Kc7 Ra7+ 89.Kb6. Black resigns.> (