TCEC Swiss 2

See also TCEC Swiss rules‎‎.

Tournament format

The TCEC Swiss 2 uses the TCEC Swiss Tournament System with the following configuration:

• 11 double rounds
• Group seeding with 40 engines divided in 8 groups. Groups populated using TCEC S21 final standings and one additional engine.

Invited engines

Here is the full list of engines that are invited and envisioned to participate.

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

1. Stockfish - update promised -> Stockfish 14.1 tested -> current update: Stockfish 14.1_202110312243 -> new version Stockfish 14.1_20211101
2. LCZero - engine received: LCZero 0.28-dev+_609958 (2 parameters added: DrawScoreSideToMove=-15 and DrawScoreOpponent=10)
3. KomodoDragon - no update, version of previous Cup 9 will play: KomodoDragon 2.5.1
4. Stoofvlees - no reply, version of previous Cup 9 will play
5. AllieStein - current version does not work
6. ScorpioNN - minor update ScorpioNN 3.0.14f received
7. Igel - no update, version of previous Cup 9 will play: Igel 3.10.0
8. Ethereal - no reply, version of previous Cup 9 will play
9. RubiChess - no update, version of previous Cup 9 will play: RubiChess-2.3-dev-TCECcup9
10. SlowChess - update to SlowChess 2.75 promised received
11. Revenge - no update, new version of previous Cup 9 will play: Revenge 20211009
12. Xiphos - no reply, version of previous Cup 9 will play
13. rofChade - no update, version of previous Cup 9 will play: rofChade 2.309
14. Nemorino - no update, new version of previous Cup 9 will play: Nemorino 6.09
15. Fritz - no update, new version of previous Cup 9 will play: Fritz 18_20211010
16. Defenchess - no update, as usual -> Defenchess 2.3_dev2 will play
17. Minic - possible update through discord -> update to Minic 3.17 received
18. Halogen - update to Halogen 10.19 received -> updated to 10.20 -> updated to 10.20.4 10.20.5
19. Vajolet2 - no reply, version of previous Cup 9 will play
20. Winter - no update, version of previous Cup 9 will play: Winter 0.9.7
21. ClassicAra - update promised received -> updated to 0.9.7 -> new version ClassicAra 0.9.7.post0
22. Seer - update received -> updated to Seer 20211030
23. Arasan - update to Arasan v23.0.1-21-gda3182f received (new engine and new net)
24. Wasp - if no update ready, then existing version will play, but work is still ongoing until deadline -> no update, version of previous Cup 9 will play: Wasp 4.65 but Contempt 0 -> -25
25. Combusken - update promised -> update received: Combusken 1.9.9_TCEC_Swiss_2
26. Tucano - no reply, version of previous Cup 9 will play
27. Koivisto - update promised per TCEC chat - updated to Koivisto 7.0
28. Marvin - update to Marvin 5.2.0-a8 received
29. Pirarucu - no reply, version of previous Cup 9 will play
30. Topple - no update, new version of previous Cup 9 will play: Topple 0.8.1
31. Weiss - no update, new version of previous Cup 9 will play: Weiss 2.1-dev
32. Monolith - no reply, version of previous Cup 9 will play
33. Amoeba - no reply, version of previous Cup 9 will play
34. Stash - update promised, update Stash v31.12 received -> updated to 31.13
35. Cheng - update to Cheng 4.42_dev received
36. Nirvana - no reply, version of previous Cup 9 will play
37. Mr_Bob - update promised -> updated to Mr_Bob dev-20211031 -> fix received
38. Drofa - update to Drofa 3.2.10 received
39. ChessFighter - update promised, needs special testing with regards to CUDA -> versions not working yet, not sure if it can play -> another new version received -> update to ChessFighter 3.9 received
40. Berserk - update to Berserk 7-dev received -> updated to 7-dev2 -> updated to 7-dev3
41. Invictus - update promised -> update sent, not working -> new version received -> updated to Invictus r391
42. Bagatur - update to Bagatur 2.2e received and threads 16 -> 104
43. tomitankChess - no reply, version of previous Cup 9 will play
44. Cheese - no update, current version Cheese 2.2 will play
45. Francesca - current version does not work
46. Zahak - first particpation: contact established - engine promised -> brand new engine Zahak 8.0 received -> updated to 8.0.1 -> to 8.0.2 -> to 8.0.3

Engines not playing

1. AllieStein - current version does not work
2. Francesca - current version does not work

Seeding groups

Group A

1. Stockfish
2. LCZero
3. KomodoDragon
4. Stoofvlees
5. AllieStein
6. ScorpioNN

Group B

1. Igel
2. Ethereal
3. RubiChess
4. SlowChess
5. Revenge
6. Xiphos

Group C

1. rofChade
2. Nemorino
3. Fritz
4. Defenchess
5. Minic
6. Halogen

Group D

1. Vajolet2
2. Winter
3. ClassicAra
4. Seer
5. Arasan
6. Wasp

Group E

1. Combusken
2. Tucano
3. Koivisto
4. Marvin
5. Pirarucu
6. Topple

Group F

1. Weiss
2. Monolith
3. Amoeba
4. Stash
5. Cheng
6. Nirvana

Group G

1. MrBob
2. Drofa
3. ChessFighter
4. Berserk
5. Invictus

Group H

1. Bagatur
2. tomitankChess
3. Cheese
4. Francesca
5. Zahak

Seeding order

1. A1
2. B1
3. C1
4. D1
5. E1
6. F1
7. G1
8. H1
9. A2
10. B2
11. C2
12. D2
13. E2
14. F2
15. G2
16. H2
17. A3
18. B3
19. C3
20. D3
21. E3
22. F3
23. G3
24. H3
25. A4
26. B4
27. C4
28. D4
29. E4
30. F4
31. G4
32. H4
33. A5
34. B5
35. C5
36. D5
37. E5
38. F5
39. G5
40. H5
41. A6
42. B6
43. C6
44. D6
45. E6
46. F6

Swiss1 pairings and results

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