What just happened here?

While scooping up dgt games to test my game replay system, I cam across the following weirdness from the Olomouc 2015 GM B tournament. Not quite sure where Black decided to fall on his sword, but it was all starting to unravel as early as 7. ... c5. To be fair to Black, the idea of taking the h1 rook and and going h4-c4-c8 with it may have come as a shock, but each move by this rook just increased White's advantage.

Kourousis,Epaminondas - Cernousek,Lukas [D80]
Olomouc 2015 (4), 18.08.2015