TCEC/CCC 2021-H2 Summary

Since December 2018, Monday posts on this blog have been about chess engines (*). The last Monday post of the year means a summary of all Monday posts during the past six months. For the previous summary, see TCEC/CCC 2021-H1 Summary (June 2021), where I wrote,

The first column lists the fortnightly posts on the current status; the second column lists off-week posts on related topics that I wanted to explore in more depth. The last, blank space on the right is a space filler for this current post.

That explanation also works for the current post.

TCEC/CCC	Off-week
2021-07-19: TCEC Prepares S21 Sufi; CCC in Romantic Mode	2021-07-26: Stockfish vs. ChessBase
2021-08-02: TCEC S21 Sufi Underway; CCC Still Romancing	2021-08-09: Breaking the BDG
2021-08-16: TCEC Stockfish Wins S21; CCC Romance Continues	2021-08-23: Talkchess Is/Isn't Talking
2021-08-30: TCEC VSOB 21, CCC Blitz 2021 : Both Underway
2021-09-13: TCEC VSOB 21, CCC Blitz 2021 : Both Still Underway	2021-09-20: TCEC VSOB Opening Tools
2021-09-27: TCEC VSOB 21, CCC C960 Blitz Championship : Both Underway	2021-10-04: TCEC/CCC Link Maintenance
2021-10-11: TCEC Testing Cup 9; CCC C960 Blitz Semifinal	2021-10-18: CCC Changes the Guard
2021-10-25: TCEC Cup 9, CCC C960 Blitz Final : Both Underway	2021-11-01: Evaluating the Evaluations
2021-11-08: TCEC Swiss 2, CCC16 Rapid : Both Underway	2021-11-15: Talkchess Is Talking Again
2021-11-22: TCEC Swiss 2, CCC16 Rapid : Still Underway	2021-11-29: Engines Forced to Play Like Us
2021-12-06: TCEC Swiss 2 in Final Round; Stockfish Wins CCC16 Rapid	2021-12-13: Komodo Dragon
2021-12-20: KomodoDragon Wins TCEC Swiss 2; CCC16 Bullet Semifinals Underway

At the end of the '2021-H1 Summary', I noted,

The CCC hasn't run a structured, multi-phase competition in more than three months. What will the next six months bring for the CCC?

See the post dated '2021-10-18' for an answer to that question. As for the TCEC, the season become longer this year:-

• 2020-04-27: Leela Beat Stockfish in TCEC S17 & CCC13 Finals
• 2020-07-20: Stockfish Wins TCEC S18
• 2020-10-26: Stockfish Wins TCEC S19
• 2021-02-01: Stockfish Wins TCEC S20
• 2021-08-16: Stockfish Wins TCEC S21

The organizers have been adding more competitions, like the Swiss and VSOB events, to the regular season. Computer chess appears to be more popular than ever.

(*) With a few early exceptions, the Monday posts have been about chess engines since Catching Up with Engine Competitions (October 2018).