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 44 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.
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
Engines
- Stockfish - update promised -> Stockfish 14.1 tested -> current update: Stockfish 14.1_202110312243 -> new version Stockfish 14.1_20211101
- LCZero - engine received: LCZero 0.28-dev+_609958 (2 parameters added: DrawScoreSideToMove=-15 and DrawScoreOpponent=5)
- KomodoDragon - no update, version of previous Cup 9 will play: KomodoDragon 2.5.1
- Stoofvlees - no reply, version of previous Cup 9 will play
- ScorpioNN - minor update ScorpioNN 3.0.14f received
- Igel - no update, version of previous Cup 9 will play: Igel 3.10.0
- Ethereal - no reply, version of previous Cup 9 will play
- RubiChess - no update, version of previous Cup 9 will play: RubiChess-2.3-dev-TCECcup9
- SlowChess - update to SlowChess 2.75
promisedreceived - Revenge - no update, new version of previous Cup 9 will play: Revenge 20211009
- Xiphos - no reply, version of previous Cup 9 will play
- rofChade - no update, version of previous Cup 9 will play: rofChade 2.309
- Nemorino - no update, new version of previous Cup 9 will play: Nemorino 6.09
- Fritz - no update, new version of previous Cup 9 will play: Fritz 18_20211010
- Defenchess - no update, as usual -> Defenchess 2.3_dev2 will play
- Minic - possible update through discord -> update to Minic 3.17 received
- Halogen - update to Halogen 10.19 received -> updated to 10.20 -> updated to
10.20.410.20.5 - Vajolet2 - no reply, version of previous Cup 9 will play
- Winter - no update, version of previous Cup 9 will play: Winter 0.9.7
- ClassicAra - update
promisedreceived -> updated to 0.9.7 -> new version ClassicAra 0.9.7.post0 - Seer - update received -> updated to Seer 20211030
- Arasan - update to Arasan v23.0.1-21-gda3182f received (new engine and new net)
- 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
- Combusken - update promised -> update received: Combusken 1.9.9_TCEC_Swiss_2
- Tucano - no reply, version of previous Cup 9 will play
- Koivisto - update promised per TCEC chat - updated to Koivisto 7.0
- Marvin - update to Marvin 5.2.0-a8 received
- Pirarucu - no reply, version of previous Cup 9 will play
- Topple - no update, new version of previous Cup 9 will play: Topple 0.8.1
- Weiss - no update, new version of previous Cup 9 will play: Weiss 2.1-dev
- Monolith - no reply, version of previous Cup 9 will play
- Amoeba - no reply, version of previous Cup 9 will play
- Stash - update promised, update Stash v31.12 received -> updated to 31.13
- Cheng - update to Cheng 4.42_dev received
- Nirvana - no reply, version of previous Cup 9 will play
- Mr_Bob - update promised -> updated to Mr_Bob dev-20211031 -> fix received
- Drofa - update to Drofa 3.2.10 received
- 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
- Berserk - update to Berserk 7-dev received -> updated to 7-dev2 -> updated to 7-dev3
- Invictus - update promised -> update sent, not working -> new version received -> updated to Invictus r391 -> -> updated to fixed Invictus r391b
- Bagatur - update to Bagatur 2.2e received and threads 16 -> 104, threads reduced to 64 and total RAM increased to 60GiB after crash
- tomitankChess -
no reply, version of previous Cup 9 will playmiscommunication happened, update was sent in time -> updated to tomitankChess 5.1 - Cheese - no update, current version Cheese 2.2 will play
- 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
Bugfixes and problems
Bugs (or problems) found during Swiss Testing:
- Francesca not running with !wine under cutehcess-cli
- Allie exactly same engine version and UCI option pointing to correct file still for some reason behaves like nonsense is loaded.
- Zahak slow speed. Fix tested.
- Berserk illegal move !g5g6. Fix received
- ChessFighter has problems with CUDA. Update received
- Invictus lost on time and not responding to stop caused by missing newline before bestmove due to race condition. Fix received
- Bagatur connection stalls. Reduced to 64 threads and total RAM increased to 60GiB
Engines not playing
- AllieStein - current version does not work
- Francesca - current version does not work
Seeding
See the page on seeding for procedural details.
Seeding groups
Group A | Group B | Group C | Group D | Group E | Group F | Group G | Group H |
KomodoDragon | Ethereal | Nemorino | Winter | Tucano | Weiss | Nirvana | Invictus |
Stockfish | RubiChess | Fritz | ClassicAra | Koivisto | Monolith | Mr_Bob | Bagatur |
LCZero | SlowChess | Defenchess | Seer | Marvin | Amoeba | Drofa | tomitankChess |
Stoofvlees | Revenge | Minic | Arasan | Pirarucu | Stash | ChessFighter | Cheese |
ScorpioNN | Xiphos | Halogen | Wasp | Topple | Cheng | Berserk | Zahak |
Igel | rofChade | Vajolet2 | Combusken |
Seeding order
- A1 KomodoDragon
- B1 Ethereal
- C1 Nemorino
- D1 Winter
- E1 Tucano
- F1 Weiss
- G1 Nirvana
- H1 Invictus
- A2 Stockfish
- B2 RubiChess
- C2 Fritz
- D2 ClassicAra
- E2 Koivisto
- F2 Monolith
- G2 Mr_Bob
- H2 Bagatur
- A3 LCZero
- B3 SlowChess
- C3 Defenchess
- D3 Seer
- E3 Marvin
- F3 Amoeba
- G3 Drofa
- H3 tomitankChess
- A4 Stoofvlees
- B4 Revenge
- C4 Minic
- D4 Arasan
- E4 Pirarucu
- F4 Stash
- G4 ChessFighter
- H4 Cheese
- A5 ScorpioNN
- B5 Xiphos
- C5 Halogen
- D5 Wasp
- E5 Topple
- F5 Cheng
- G5 Berserk
- H5 Zahak
- A6 Igel
- B6 rofChade
- C6 Vajolet2
- D6 Combusken
Swiss 2 pairings and results
Round 1
Nr White Black 1 Combusken 1.9.9_TCEC_Swiss_2 1 0 Vajolet2 2.9.0-TCEC-S19 2 rofChade 2.309 1/2 1/2 Igel 3.0.10 3 Zahak 8.0.3 1/2 1/2 Berserk 7-dev3 4 Cheng 4.42_dev 1 0 Topple 0.8.1 5 Wasp 4.65 1/2 1/2 Halogen 10.20.5 6 Xiphos 0.6.1 1/2 1/2 ScorpioNN 3.0.14f 7 Cheese 2.2 0 1 ChessFighter 3.9 8 Stash 31.13 1/2 1/2 Pirarucu 3.3.5 9 Arasan v23.0.1-21-gda3182f 1/2 1/2 Minic 3.17 10 Revenge 20211009 1 0 Stoofvlees II a18 11 tomitankChess 5.1 1/2 1/2 Drofa 3.2.10 12 Amoeba 3.4 1 0 Marvin 5.2.0-a8 13 Seer 20211030 1 0 Defenchess 2.3_dev2 14 SlowChess Blitz 2.75 avx 1/2 1/2 LCZero 0.28-dev+_609958 15 Bagatur 2.2e 1/2 1/2 Mr_Bob dev-20211031 16 Monolith 20210221 1/2 1/2 Koivisto 7.1 17 ClassicAra 0.9.7.post0 1/2 1/2 Fritz 18_20211010 18 RubiChess 2.3-dev-TCECcup9 1/2 1/2 Stockfish 14.1_20211101 19 Invictus r391b 1/2 1/2 Nirvana 2.5 20 Weiss 2.1-dev 1 0 Tucano 9.18_dev 21 Winter 0.9.7 1 0 Nemorino 6.09 22 Ethereal 13.35_NNUE-A18F 1/2 1/2 KomodoDragon 2.5.1 --------------------------------------------------------------------- 23 Vajolet2 2.9.0-TCEC-S19 1/2 1/2 Combusken 1.9.9_TCEC_Swiss_2 24 Igel 3.0.10 1 0 rofChade 2.309 25 Berserk 7-dev3 1 0 Zahak 8.0.3 26 Topple 0.8.1 1 0 Cheng 4.42_dev 27 Halogen 10.20.5 1/2 1/2 Wasp 4.65 28 ScorpioNN 3.0.14f 1/2 1/2 Xiphos 0.6.1 29 ChessFighter 3.9 1/2 1/2 Cheese 2.2 30 Pirarucu 3.3.5 0 1 Stash 31.13 31 Minic 3.17 1/2 1/2 Arasan v23.0.1-21-gda3182f 32 Stoofvlees II a18 1/2 1/2 Revenge 20211009 33 Drofa 3.2.10 1 0 tomitankChess 5.1 34 Marvin 5.2.0-a8 1 0 Amoeba 3.4 35 Defenchess 2.3_dev2 1 0 Seer 20211030 36 LCZero 0.28-dev+_609958 1 0 SlowChess Blitz 2.75 avx 37 Mr_Bob dev-20211031 1 0 Bagatur 2.2e 38 Koivisto 7.1 1 0 Monolith 20210221 39 Fritz 18_20211010 1/2 1/2 ClassicAra 0.9.7.post0 40 Stockfish 14.1_20211101 1 0 RubiChess 2.3-dev-TCECcup9 41 Nirvana 2.5 0 1 Invictus r391b 42 Tucano 9.18_dev 1/2 1/2 Weiss 2.1-dev 43 Nemorino 6.09 1/2 1/2 Winter 0.9.7 44 KomodoDragon 2.5.1 1/2 1/2 Ethereal 13.35_NNUE-A18F
Round 2
45 Vajolet2 2.9.0-TCEC-S19 0 1 rofChade 2.309 46 Zahak 8.0.3 1 0 Cheese 2.2 47 Pirarucu 3.3.5 1/2 1/2 Stoofvlees II a18 48 tomitankChess 5.1 0 1 SlowChess Blitz 2.75 avx 49 Bagatur 2.2e 1/2 1/2 Monolith 20210221 50 RubiChess 2.3-dev-TCECcup9 1 0 Nirvana 2.5 51 Tucano 9.18_dev 1/2 1/2 Nemorino 6.09 52 Cheng 4.42_dev 1/2 1/2 Wasp 4.65 53 Topple 0.8.1 1/2 1/2 Halogen 10.20.5 54 Xiphos 0.6.1 0 1 Arasan v23.0.1-21-gda3182f 55 ScorpioNN 3.0.14f 1 0 Minic 3.17 56 Amoeba 3.4 1/2 1/2 Seer 20211030 57 Marvin 5.2.0-a8 0 1 Defenchess 2.3_dev2 58 ClassicAra 0.9.7.post0 1/2 1/2 Ethereal 13.35_NNUE-A18F 59 Fritz 18_20211010 1/2 1/2 KomodoDragon 2.5.1 60 Combusken 1.9.9_TCEC_Swiss_2 1/2 1/2 Igel 3.0.10 61 Berserk 7-dev3 1 0 ChessFighter 3.9 62 Stash 31.13 1/2 1/2 Revenge 20211009 63 Drofa 3.2.10 1/2 1/2 LCZero 0.28-dev+_609958 64 Mr_Bob dev-20211031 1/2 1/2 Koivisto 7.1 65 Stockfish 14.1_20211101 1 0 Invictus r391b 66 Weiss 2.1-dev 1/2 1/2 Winter 0.9.7 ---------------------------------------------------------------------- 67 rofChade 2.309 1 0 Vajolet2 2.9.0-TCEC-S19 68 Cheese 2.2 1/2 1/2 Zahak 8.0.3 69 Stoofvlees II a18 1 0 Pirarucu 3.3.5 70 SlowChess Blitz 2.75 avx 1 0 tomitankChess 5.1 71 Monolith 20210221 1 0 Bagatur 2.2e 72 Nirvana 2.5 0 1 RubiChess 2.3-dev-TCECcup9 73 Nemorino 6.09 1 0 Tucano 9.18_dev 74 Wasp 4.65 1 0 Cheng 4.42_dev 75 Halogen 10.20.5 1 0 Topple 0.8.1 76 Arasan v23.0.1-21-gda3182f 0 1 Xiphos 0.6.1 77 Minic 3.17 1/2 1/2 ScorpioNN 3.0.14f 78 Seer 20211030 1 0 Amoeba 3.4 79 Defenchess 2.3_dev2 1 0 Marvin 5.2.0-a8 80 Ethereal 13.35_NNUE-A18F 1/2 1/2 ClassicAra 0.9.7.post0 81 KomodoDragon 2.5.1 1 0 Fritz 18_20211010 82 Igel 3.0.10 1/2 1/2 Combusken 1.9.9_TCEC_Swiss_2 83 ChessFighter 3.9 1/2 1/2 Berserk 7-dev3 84 Revenge 20211009 1 0 Stash 31.13 85 LCZero 0.28-dev+_609958 1/2 1/2 Drofa 3.2.10 86 Koivisto 7.1 1 0 Mr_Bob dev-20211031 87 Invictus r391b 1/2 1/2 Stockfish 14.1_20211101 88 Winter 0.9.7 1 0 Weiss 2.1-dev
Round 3
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Round 4
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Round 5
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Round 6
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Round 7
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Round 8
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Round 9
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Round 10
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Round 11
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