It's still early, but a mild upset may be brewing as Stockfish leads after the third of eight cycles in stage 3 of the 9th season of the TCEC. Stockfish is undefeated and has 14.5/21, Houdini - also undefeated - is in second with 13.5, and Komodo - which lost a game to Stockfish in the third cycle - is third with 13 points. In the last couple of seasons Komodo was starting to show a little dominance over its rivals, so it's good to see that the competition remains heated. All the engines are likely to improve - and faster - as a result.