TCEC Leagues Season 22 Engines

This page TCEC Season 22 Engines is used for constant updating during TCEC Leagues Season 22, to see which engines and updates have been requested, announced and received.

• For authors see Engines_and_authors
• For admins see Seasons and admins

• click on any crosstable image to enlarge and also to see the r-mobility tiebreaks for that event.

Explanation of typography

Explanation of special typography:

• underlined means possible invite
• italics - invited for this particular event
• bold - contact has been sought or established with, the author(s)
• bold italics - engine and/or update received.
• struck through - declined or not participating

Flowchart

Flowchart of promotions (and relegations) in the TCEC Leagues Event

Superfinal

...

Infrafinal

...

Premier Division

1. Stockfish
2. LCZero
3. KomodoDragon
4. Stoofvlees
5. ScorpioNN
6. Igel
7. ...
8. ...

League 1

1. Ethereal
2. RubiChess - update promised
3. SlowChess Blitz - update to 2.83 received
4. Revenge - update received
5. rofChade - possible update coming
6. Nemorino - update to version 6.11 received
7. ...
8. ...

League 2

1. Fritz - possible new version coming -> update to Fritz18 NNUE beta received
2. Minic - update promised
3. Halogen - update submitted via discord
4. Vajolet2 - reminder sent
5. Winter - reminder sent -> reply received: Winter 0.9.8 will play (version from last FRC)
6. ClassicAra - update promised -> update to ClassicAra 0.9.9 received
7. Koivisto - advanced from L3
8. ...

League 3

1. Seer - update to Seer 20211203 received
2. Arasan - possible update coming -> update to Arasan v23.2.0-21-g5db490e received
3. Wasp - update promised (incl NN for evaluation) - updated questionnaire received -> Wasp 5.25 received
4. Tucano - expecting update to Tucano 10 (official release with NNUE), Tucano 10 and updated questionnaire received
5. Koivisto - update to Koivisto 7.10 received -> update and new net announced -> update to 7.13 received
6. Marvin - update including FRC support submitted -> update Marvin 6.0.0-a2 received
7. Pirarucu - no update at this time. Relegated to L4
8. Topple - Final Reminder sent - no response: current version will play. Relegated to L4
9. Berserk - advanced from L4
10. Weiss - advanced from L4
11. Bit-Genie - advanced from L4
12. Drofa - advanced from L4

League 4

1. Weiss - no update, current version will play
2. Monolith - Final Reminder sent - replied there is no update atm: current version will play. Relegated to QL
3. Amoeba - update to Amoeba 3.4-tcec received. Relegated to QL
4. Stash - update to Stash 32.7 received
5. Cheng - no update, current version will play. Relegated to QL
6. Nirvana - Final Reminder sent - no response: current version will play. Relegated to QL
7. Mr_Bob - update promised -> update Mr_Bob dev-20220119 received
8. Drofa - update to Drofa 3.2.31 received -> update to Drofa 3.3.0 announced received
9. Berserk - advanced from QL
10. Chiron - advanced from QL
11. Bit-Genie - advanced from QL
12. Zahak - advanced from QL

Qualification League

1. ChessFighter - update promised -> update ChessFighter 3.10.0 received -> updated to 3.10.1
2. Berserk - update to Berserk 9-dev4 received
3. Invictus - update promised -> update not ready in time: existing version r391b will play
4. Bagatur - update to Bagatur 3.1 -> 3.2 received -> bugfix received -> further update promised, received: 3.2-fix
5. tomitankChess - last version 5.1 will play
6. Cheese - update to Cheese 3.0.1 received
7. Zahak - update to Zahak 9.0 received
8. Bit-Genie - submission promised -> version 9.22 submitted and entered -> update Bit-Genie 9.23 received
9. Velvet - engine and questionnaire promised -> both received -> Velvet 3.1.1 received -> updated to 3.1.3
10. Blackmarlin - questionnaire received -> BlackMarlin 5.0dev received -> update to 5.0dev2 received -> update to 5.0dev2.fix received -> update to 5.0dev3 received
11. Counter - update to Counter 4.0 received
12. Mantissa - contact established, Mantissa 3.3.0 received
13. Chiron - update to 5.01 received
14. Asymptote - questionnaire and engine received -> Asymptote 0.9-dev_20220126

Not playing

Withdrew temporarily:

1. AllieStein - (S21 Premier League) not working on the new hardware
2. Xiphos - (S21 League 1) out of development
3. Defenchess - (S21 League 2) out of development
4. Booot - (S21 League 2) crashing issues
5. Combusken - (S21 League 3) withdraws temporarily for lack of time for development
6. Protej - not yet ready to compete this season
7. Colossus - specific problems running under WINE, not yet ready to compete this season
8. Hiarcs - not ready for S22, will prepare for Season 23 though
9. ChessCoach - Final Reminder sent - earlier reply sent again because somehow lost: not ready for S22, hopes to participate in next or a future season
10. Francesca - Final Reminder sent, no response
11. Gödel - Final Reminder sent, no response
12. RuyDos - questionnaire received, update promised - Final Reminder sent
13. Devel - Final Reminder sent, no response
14. OliThink - Final Reminder sent, responded almost 16 hours after deadline
15. Clover - questionnaire received, engine received Clover 3.1-dev3-native -> entrance decision postponed until Season 23

Not invited because email addresses unknown:

1. Nu-Chess
2. Nawald
3. Shallow

Deadlines & Start Times

1. The QL+L4+L3 submission deadline was Wednesday, January 26, 2022 23:59 UTC
2. Qualification League started January 28, 17.00 UTC
3. League 4 started February 5, 22.33 UTC
4. League 3 started February 11, 7.11 UTC
5. The League 2 submission deadline is the last move of League 3, estimated Wednesday February 16
6. League 2 is estimated to start after 1-2 days of testing following the League 2 submission deadline
7. The League 1 submission deadline is the last move of League 2

Current configuration

• Current configuration and compilation output

  This is same as the first item in list below.

• Pre QL and L3 config

Testing

Bugs and problems

1. Chiron not starting. Update received
2. Bagatur bug (material evaluation was accidentally disabled). Update received
3. Bit-Genie lost on time in QL game 125 and in L3 game 55
4. Mr_Bob crashed in L4 game 99

Trivia

Polls

1. Which two will promote from L3 to L2? (Closed)
2. Which four will be relegated from L3 to L4 (Closed)
3. Which four will promote from L4 to L3 (Closed)
4. Which four will be relegated from L4 to QL (Closed)
5. Which four will promote from QL to L4 (Closed)
6. How many testing games will be played before QL starts (Closed)

Statistics

• Popular openings in S21 QL: French Defence Exchange Variation, ECO C01 (1. e4 e6 2. d4 d5 3. exd5 exd5), 12/182 times; Ruy Lopez Exchange Variation, C68+C69 (1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6) 16/182 times.

Popular openings in S22 QL: French Defence, Burn and Steinitz Variations, ECO C11 (1 e4 e6 2 d4 d5 3 Nc3 Nf6), 11/182 times; Queen’s Gambit Declined with 4. Nf3, ECO D37 (1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3), 18/182 times.

• Some statistics for S21 and S22 QL; both had 14 contestants and thus 182 games. Bookless both times, so I look at games and not at minimatches. S21 QL: White wins 64 [35.16%], Black wins 47 [25.82%], Draws 71 [39.01%]. Among the top 7 finishers, 42 games. White wins 9 [21.43%], Black wins 10 [23.81%], Draws 23 [54.76%]. S22 QL: White wins 65 [35.71%], Black wins 33 [18.13%], Draws 84 [46.15%]. Among the top 7 finishers, 42 games. White wins 8 [19.05%], Black wins 5 [11.90%], Draws 29 [69.05%].

Looking only at the draw rate: S21 QL: 39.01%, but 54.76% among the top 7 finishers; S22 QL: 46.15%, but 69.05% among the top 7 finishers. (by Bastiaan/kbg519v1a)