Stockfish extends its lead to 6 points, with 30 games remaining and the current draw rate it is very unlikely that Komodo can close this gap.
Stockfish started game 59 with an eval over 1 that gradually increased. The engines castled in opposite directions, Stockfish pushed pawns on the king side and brought a rook forward facing the black king. Komodo exchanged two knights for the rook and two pawns.
Komodo had a passer in the center and a pawn majority on the king side, Stockfish had a pawn majority on the queen side. Evals increased for a while, Stockfish's eval reached almost 3, then stopped climbing. The white pawns on the king side were exchanged and Komodo had 3 passers, yet evals suggested Stockfish was better.
Komodo saw an opportunity to exchange queens and took it. Stockfish thought this was a mistake, it captured the two black queen side pawns and its eval jumped. All the pawns were passers, both engines pushed a passer forward and Stockfish was winning the race.
The extra white piece became crucial. Komodo had to keep one rook on the white passer, and its king and other rook couldn't protect all the black pawns. Stockfish captured the black passer on h3, and the game was adjudicated before Komodo lost more material.
In game 60 there were many early exchanges and only RRN vs RRN were left on move 24, Stockfish a pawn up. Evals were 0, Komodo got the pawn back and the game reduced to a RN vs RN position with only one pawn left for each engine, another draw. Stockfish's lead is now 6 points.
The engines castled in opposite directions in game 61, both kings were not fully protected by pawns. Stockfish's eval increased over 1 and came back down. In a series of exchanges Stockfish exposed the black king and won a pawn. The game reached a QB vs QB position and Stockfish forced a draw with perpetual check. In game 62 both engines castled long, the king side was blocked. After a few exchanges the engines started to shuffle, it took more than 100 moves for Komodo to lower its eval for adjudication by the draw rule.
In game 63 Stockfish had an eval of 1 from the start. It gave a pawn on move 13 and this started a series of exchanges that left only RBN vs RR on move 22. A few moves later the evals came down to 0. Komodo pushed a passer to the 2nd rank, Stockfish lost a knight to capture it and the game was adjudicated soon after that. In game 64 evals stayed low. The engines exchanged rooks through an open file and only QB vs QN remained on move 25. After exchanging queens the engines shuffled until adjudication.
Stockfish had an eval around 1 from the start of game 65. The center was blocked and there were no exchanges until move 20. The engines gradually exchanged pieces while keeping most of the pawns, evals came down when only RRB vs RRN remained. The game continued for 50 more moves and ended in a tablebase draw. In game 66 both engines kept their pieces behind their long pawn lines. After all the knights were exchanged the engines began shuffling. After opening the king side a little the engines exchanged down to a RB vs RB position, it took another 50 moves for a draw rule adjudication.
In games 67-68 the engines castled in opposite directions and each pushed pawns facing the opponent's king. In game 67 Stockfish's eval quickly increased over 1. Komodo's queen side attack was faster, weaking the white pawns guarding the king. Stockfish exchanged pieces and hid its king behind a black pawn. Komodo gave a pawn to open a file in the center and evals started to come down. The game reached a QR vs QR drawn position. In game 68 queens were exchanged early and evals stayed low. Stockfish managed to open a file on the queen side but the white king was not in real danger. The engines exchanged down to a RRB vs RRB position with Komodo a pawn up, the game ended in a repetition draw.
Games 69-70 started with black a pawn up. Evals stayed low throughout game 69. There were many early exchanges, Stockfish regained the pawn and only BN vs BB were left on move 27. The game ended quickly in a tablebase draw. In game 70 Stockfish held on to its pawn advantage and its (negative) eval started to increase. Stockfish pushed a queen side passer, Komodo countered by creating its own queen side passer. Stockfish's eval was more than 1.5 as both engines struggled to protect their passer and attack the opponent's passer. In a series of exchanges both passers were gone and the game reached a rook ending, 3 vs 2 pawns on the king side. Stockfish's eval remained high, it had a passer but it couldn't push it beyond the 4th rank. The game ended in a 50 move draw.
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