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Classic Tetris World Championship

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Classic Tetris World Championship
Tournament information
SportClassic Tetris
Established2010
Number of
tournaments
15
VenuePasadena Convention Center (2024)
Online (2020–21)
Oregon Convention Center (2012–19, 2022–23)
University of Southern California (2011)
Downtown Independent (2010)
Purse$10,000
Websitethectwc.com
Current champion
Alex Thach (2024)

The Classic Tetris World Championship (CTWC) is a video game competition series, hosted by the Socal Gaming Expo. The competition launched in 2010, during the filming of Ecstasy of Order: The Tetris Masters, to determine the world's greatest Tetris player.[1] In its first two years, the competition was held in Los Angeles, California,[2] but was moved to Portland, Oregon, in 2012, and was held there annually through 2023 (with the exceptions of the 2020 and 2021 tournaments, held online due to the COVID-19 pandemic). The 2024 edition has been held in Pasadena, California.[3]

The contestants play the 1989 Nintendo version of Tetris on Nintendo Entertainment System consoles and cathode-ray tube (CRT) video displays. All of the tournaments are streamed online with live-edited screens and heads-up display to improve viewer experience. The tournament was initially dominated by Jonas Neubauer, who reached the finals in the first nine iterations of the tournament and won seven titles.

Competition

[edit]

The competition takes place over two days, with the qualifying round on the first day and the main event on the second. Contestants are allowed to bring their own controller, but it must be either an original, unmodified NES Controller or an aftermarket unit that is deemed a faithful enough reproduction of one. The competition winner and second place runner-up are awarded with the Jonas Neubauer Memorial Trophy, a J tetromino shaped trophy named for the late 7-time champion Jonas Neubauer. Prior to Neubauer's death in 2021, the trophies awarded to competition winners were T tetromino shaped.[4]

Qualifying round

[edit]

Qualifying takes place on a fixed number of NES stations. Entrants play "Type A" Tetris, starting on level 9 or higher, and are seeded based on their final score. Once an entrant's game ends for any reason, their score must be recorded by a tournament scorekeeper in order to be valid. Entrants may make as many qualifying attempts as they wish, but must return to the back of the waiting line for each one. Entrants may also pay a fee to rent a station for one hour, which allows unlimited qualifying attempts. In 2022, the lines were discontinued and each player could register for a two-hour time slot in which to make as many qualifying attempts as desired.

The top 32 scorers are seeded into a tournament bracket for the main event. In 2018, 40 players were allowed to qualify, with a "Round Zero" play-off held among the bottom 16 seeds to reduce the field to 32.[5] Forty-eight players qualified in 2016; the top 16 seeds automatically advanced, while the remaining 32 competed in "Round Zero" to fill the other 16 slots. In the event of multiple players maxing out (scoring 999,999 or higher), their second highest score is recorded to determine their seeding. This was especially utilized in 2018, when seven players maxed out, four of whom (Koji "Koryan" Nishio, Tomohiro "Green Tea" Tatejima, Jonas Neubauer and Harry Hong) maxed out twice. Thus, the officials needed their third highest scores just to determine the 1st to 4th seeding.[6]

Main event

[edit]
The champion is presented with the Jonas Neubauer Memorial Trophy, which is shaped like a J-tetromino.

The Main Event is a single-elimination tournament consisting of five rounds of head-to-head matches, with seeds from opposite ends of the rankings pitted against each other in the first round (i.e. #1 vs. #32, #2 vs. #31, etc.). Originally, competition games were played on unmodified NES Tetris game cartridges. Beginning from the 2016 tournament, the game code was modified to be capable of displaying 7-figure score values (prior to this change, the score would 'max out' at 999,999). Beginning from the 2023 tournament, game code was further modified such that at level 39, the speed of the falling pieces is increased to 2 cells per frame, effectively inhibiting gameplay past level 39.

Both players in a match play "Type A" Tetris, beginning on Level 18, at the same time on separate systems. The player who reaches a higher score wins the round.[7] Matches between players are best-of-three or best-of-five rounds, depending on the event.

Silver bracket

[edit]

In a manner similar to the National Invitation Tournament, a silver tournament for the top 32 players who did not qualify for the Main Event was started in 2020 with its own championship and trophy (not to be confused with the silver trophy for the runner-up in the Main Event). Some news media have incorrectly called the winners of this bracket "world champions".[8]

History

[edit]

Early years (2010–2017)

[edit]
The CTWC 2010 semifinals at the Downtown Independent

The inaugural Classic Tetris World Championship was held on August 8, 2010[1] at the Downtown Independent theater in Los Angeles, California. Los Angeles was chosen because several high-ranking players lived there.[9] Modeled after the 1990 Nintendo World Championships, eight players completed three Tetris challenges to decide the two finalists. Five of the eight seats in the semifinal were reserved for specific distinguished Tetris players: Jonas Neubauer, Harry Hong, Ben Mullen, Jesse Kelkar and Thor Aackerlund.[10] Neubauer won $1,000 after defeating Hong in the final. The tournament was attended by Henk Rogers and a film crew[9] for the 2011 documentary Ecstasy of Order: The Tetris Masters.[10]

The second annual championship was held at the University of Southern California's Bovard Auditorium on October 16, 2011[2][11][12] with financial support from Electronic Arts.[13] The main tournament was now a single-elimination tournament, and all matches were best-of-three.[12] Neubauer successfully defended his title[14] against Alex Kerr in the final.[15] In addition to classic Tetris, tournaments were also held for EA's Tetris for PlayStation 3 (including both a solo and 2 vs 2 team tournament, with best-of-seven matches)[2][12][16] and the tabletop game Tetris Link.[11]

The 2011 tournament was expensive and poorly attended, and it was unclear if a third event would be feasible. In what Chris Tang describes as the tournament being "saved by a miracle", the Portland Retro Gaming Expo – held at the Oregon Convention Center – made arrangements for it to be held there in 2012.[13] Neubauer continued his winning streak in the 2012 and 2013 finals[14] which were now held as best-of-five matches.[17] His streak was interrupted in 2014 when he was defeated by Hong,[18] but he regained the title with his fifth championship win in 2015.[14]

The 2016 final between Jeff Moore (left) and Jonas Neubauer (right) became popular online due to its enthusiastic and repetitive commentary.

Neubauer's opponent in the 2016 final was Jeff Moore, a dark horse who was performing strongly. Moore's impressive play got the commentators "overly excited", and they enthusiastically yelled Boom! Tetris for Jeff every time he scored.[19] Although Moore was not able to defeat Neubauer, the match became popular on YouTube where it was parodized.[20] Writing for Engadget, James Trew credits the Neubauer–Moore match and Boom! Tetris for Jeff with "piqu[ing] the interest of younger eyes and kickstart[ing] a growing appetite for competitive classic Tetris videos."[19]

Hypertapping era (2018–2021)

[edit]

After watching the Neubauer–Moore match on YouTube, 15 year old Joseph Saelee became interested in Tetris. He prioritized learning a rare playstyle called hypertapping, which by 2017 had only been used competitively by two players – Thor Aackerlund and Koji "Koryan" Nishio. When hypertapping, the buttons on the game controller are pressed extremely rapidly with muscle tremors (rather than pressing and holding buttons). Within one year, Saelee had set numerous world records with the technique.[20]

Jonas Neubauer (left) and Joseph Saelee (right) posing with their trophies

Saelee, now 16 years old, entered the 2018 tournament hoping "just to qualify", without serious expectations for his first competition.[21] He was much younger than most competitors, who were in their thirties or forties. After defeating both Hong and Koryan, he had reached the final where he would face Neubauer.[22] Saelee won the final 3–0, becoming the new world champion.[23] He initially exited the stage speechless; Neubauer took the microphone to praise Saelee's play.[22]

The YouTube video of the Neubauer–Saelee match, titled "16 y/o Underdog vs. 7-time Champ", became the most viewed competitive Tetris match[22] and is credited with popularizing hypertapping and attracting young players to Tetris.[24] The 2018 event was shown on commercial television, with a recap airing on ESPN2.[25] Future recaps would air as part of ESPN8: The Ocho special programming.[26]

Saelee won back-to-back titles, defeating Koji Nishio.

Due to the COVID-19 pandemic, the 2020 event was held online with a different set of rules from the in-person tournaments.[27] Michael Artiaga (dogplayingtetris) won the final. He became the youngest-ever champion at 13 years and 16 days of age, defeating his 15-year-old brother Andrew Artiaga (P1xelAndy). Michael Artiaga scored back-to-back CTWC victories by defeating Jacob Huff in the 2021 final.

Rolling era (2022–present)

[edit]

Although Huff had lost in 2021, he demonstrated the effectiveness of a new style of play known as "rolling." Originally introduced by CTWC regular Chris "Cheez" Martinez, the playstyle involves partially depressing the controller's D-pad with one hand, while tapping the back of the controller with the fingers of the other, pushing the controller the rest of the way into the first hand and registering an input. The new strategy has brought in a wave of scoring records, with the world record more than quadrupling, and has seen former DAS players and hypertappers (including the Artiagas) adopt the playing style.[28]

The 2022 tournament, held in Portland for the first time in three years, was dominated by rollers. Eric "EricICX" Tolt defeated Justin Yu "Fractal161" to win the title three games to one. The third game saw both players exceed 2.1 million points, with Tolt winning the game and later the crown.

The 2023 event saw Yu win his first title, coming from 0–2 down to defeat Eve "Sidnev" Commandeur of the Netherlands 3–2 in the final. Commandeur also set the qualifying record with 16 max-outs,[29] which was tied by both Willis Gibson "Blue Scuti" and Noah Dengler in the 2024 event.[30]

In the 2024 tournament, held in Pasadena for the first time, Alex Thach claimed his first title, topping Michael Artiaga (dogplayingtetris) in a decider.

Results

[edit]

Official rankings each year

[edit]
Year Date Location Players Champion Runner-up 3rd place[a] 4th place[a]
2010 8–9 August Los Angeles, California 15 United States Jonas Neubauer United States Harry Hong United States Matt Buco United States Dana Wilcox
2011 16 October Los Angeles, California 20 United States Jonas Neubauer (2) United States Alex Kerr
"Kitaru" 		United States Harry Hong United States Robin Mihara
2012 30 September Portland, Oregon 28 United States Jonas Neubauer (3) United States Mike Winzinek United States Eli Markstrom United States Alex Kerr
"Kitaru"
2013 6 October Portland, Oregon 28 United States Jonas Neubauer (4) United States Harry Hong United States Chad Muse United States Matt Buco
2014 19 October Portland, Oregon 32 United States Harry Hong United States Jonas Neubauer United States Terry Purcell United States Eli Markstrom
2015 18 October Portland, Oregon 68 [31] United States Jonas Neubauer (5) United States Sean Ritchie
"Quaid" 		United States Alex Kerr
"Kitaru" 		United States Harry Hong
2016 23 October Portland, Oregon 72 [32] United States Jonas Neubauer (6) United States Jeff Moore United States Harry Hong Japan Koji Nishio
"Koryan"
2017 22 October Portland, Oregon 100 [33] United States Jonas Neubauer (7) United States Alex Kerr
"Kitaru" 		United States Sean Ritchie
"Quaid" 		United States Matt Buco
2018 21 October Portland, Oregon 40 United States Joseph Saelee United States Jonas Neubauer Japan Tomohiro Tatejima
"Greentea" 		Japan Koji Nishio
"Koryan"
2019 20–21 October Portland, Oregon 48 United States Joseph Saelee (2) Japan Koji Nishio
"Koryan" 		United States Aidan Jerdee
"Batfoy" 		United States Daniel Zhang
"DanQZ"
2020 31 Oct–12 Dec Online 163 United States Michael Artiaga
"DogPlayingTetris" 		United States Andrew Artiaga
"PixelAndy" 		United States Jacob Huff
"Huffulufugus" 		Indonesia Nenu Zefanya Kariko
2021 9 Oct–15 Nov Online 206 United States Michael Artiaga (2)
"DogPlayingTetris" 		United States Jacob Huff
"Huffulufugus" 		United States Joseph Saelee United States Andrew Artiaga
"PixelAndy"
2022 15–16 October Portland, Oregon 110 United States Eric Tolt
"EricICX" 		United States Justin Yu
"Fractal161" 		United States Andrew Artiaga
"PixelAndy" 		United States Michael Artiaga
"DogPlayingTetris"
2023 13–15 October Portland, Oregon 134 United States Justin Yu
"Fractal161" 		Netherlands Eve Commandeur
"Sidnev" 		United States Willis Gibson
"Blue Scuti" 		United States Michael Artiaga
"DogPlayingTetris"
2024 7–9 June Pasadena, California 128 United States Alex Thach
"Alex T" 		United States Michael Artiaga
"DogPlayingTetris" 		United States Tristan Kwai
"Tristop" 		United States Noah Dengler
"TheDengler"
Source:[34]
  1. ^ a b There is no match between the losing semi-finalists. Instead, 3rd and 4th place are distinguished based on the scores from the semi-final matches.

Summary

[edit]
Player Wins Losing finals Losing semi-finals Losing quarter-finals
United States Jonas Neubauer 7 2
United States Michael Artiaga 2 1 2
United States Joseph Saelee 2 1 1
United States Harry Hong 1 2 3 3
United States Justin Yu 1 1
United States Alex Thach 1 1
United States Eric Tolt 1
United States Alex Kerr 2 2 2
United States Andrew Artiaga 1 2 1
Japan Koji Nishio 1 2
United States Sean Ritchie 1 1 3
United States Jacob Huff 1 1 2
Netherlands Eve Commandeur 1 2
United States Jeff Moore 1
United States Mike Winzinek 1
United States Matt Buco 3 2
United States Eli Markstrom 2 2
United States Chad Muse 1 2
United States Terry Purcell 1 2
United States Noah Dengler 1 1
United States Willis Gibson 1 1
Indonesia Nenu Zefanya Kariko 1 1
United States Tristan Kwai 1 1
Japan Tomohiro Tatejima 1 1
United States Dana Wilcox 1 1
United States Aidan Jerdee 1
United States Robin Mihara 1
United States Daniel Zhang 1
United States Josh Tolles 5
United States Trey Harrison 3
Finland Jani Herlevi 3
United States Ben Mullen 3
United States Bo Steil 3

Notable achievements

[edit]
Achievement Year Player(s) Ref.
First level 30 in qualifying round of CTWC 2018 United States Joseph Saelee [35]
First level 31 in qualifying round of CTWC 2019 United States Joseph Saelee [36]
First max-out in CTWC tournament 2019 United States Joseph Saelee [37]
First double max-out in CTWC tournament 2019 United States Joseph Saelee
Japan Tomohiro Tatejima ("Greentea") 		[37]
First double 1.1 million score in CTWC tournament 2020 United States Michael Artiaga ("DogPlayingTetris")
Japan Koji Nishio ("Koryan")
First double 1.3 million score in CTWC tournament 2021 United States Michael Artiaga ("DogPlayingTetris")
South Korea Minjun Kim ("Pokenerd")
First double 1.5 million score in CTWC tournament 2022 United States Justin Yu ("Fractal161")
United States Eric Tolt ("EricICX")
First double 2.1 million score in CTWC tournament 2022 United States Eric Tolt ("EricICX")
United States Justin Yu ("Fractal161")
Highest level reached in CTWC tournament 2022 United States Eric Tolt ("EricICX") level 146 [a]
Largest number of max-outs in qualifying round of CTWC 2023 Netherlands Eve Commandeur ("Sidnev") 16
2024 United States Willis Gibson ("Blue Scuti") 16
United States Noah Dengler ("TheDengler") 16
  1. ^ Since 2023, Tetris game code used in CTWC matches has been modified to inhibit play past level 39.

Global stops

[edit]

Since 2018, global CTWC stops have been officially added, many of which are directly linked to the CTWC main event in Portland. Other than prizes, the winner of each global stop is sponsored to fly to Portland and try to qualify for the finals.

Inaugural year Region Event/Location Organizer(s)
2018 Hong Kong CTWC Hong Kong Cyberport HK RETRO.HK, TKO
2018 Hong Kong CTWC Asia (Regional Finals) Cyberport HK / City University of Hong Kong RETRO.HK, TKO
2018 Singapore CTWC Singapore James Cook University Singapore / Versus City RetroDNA, RETRO.HK, TKO
2018 Germany CTWC Germany Gamescom TKO, Local Community
2019 Norway CTWC Norway Retrospillmessen TKO, Local Community
2019 Taiwan CTWC Taipei Taipei Game Show Summer Edition Brook Gaming, TKO
2019 Australia CTWC Australia 1989 Arcade Newtown Local Community
2019 Poland CTWC Poland various Local Community
2020 (cancelled due to the COVID-19 pandemic) Japan CTWC Japan Akihabara Hundred Square Club Local Community
2022 United Kingdom CTWC UK[38] 1UP Gaming Bar Local Community
2024 Vietnam CTWC Vietnam[a][39] Bi Coffee Local Community
  1. ^ Formerly as Classic Tetris Vietnam Championship (2021 - 2023). Since the fourth edition, this tournament was renamed as CTWC Vietnam, marking the first time this tournament become a part of CTWC Regional Qualifiers.

Similar events and side events

[edit]

During the expo there have been several tournaments on other systems over the years.[citation needed]

  • Tetris on the PlayStation 3: 4-player 2-vs-2 team battle with no items (2011)
  • Tetris Ultimate on the PlayStation 4: versus mode (2015)
  • Tetris & Dr. Mario on SNES: Tetris versus mode, held as a tournament for those who didn't participate in the main event (2016-2017)
  • Tetris: The Grand Master 2 on Arcade: versus mode with no items (2016)
  • Tetris: The Grand Master on Arcade: regular games racing for the fastest time (2017)
  • Tetris Effect on the PlayStation 4: separate gameplays on Journey mode and Mystery mode (2018)
  • Nintendo NES Tetris with extra rules: no next preview from Level 18, and race from Level 0 to Level 19 (2018)
  • Dr. Mario on NES championship as a side event. (2018) [40]

Classic Tetris Monthly (CTM)

[edit]

There is a once-a-month online tournament called Classic Tetris Monthly (CTM) that was previously hosted on the same Twitch channel as the CTWC, but it now is hosted on MonthlyTetris. Competitors routinely compete from around the world in CTM, which is streamed remotely and thus allows for great flexibility on the part of the competitors. CTM is overseen and commentated chiefly by Keith "vandweller" Didion, who took over for Jessica "fridaywitch" Starr, the tournament's founder, in the Summer of 2018. Starr premiered the tournament on December 3, 2017, on her personal Twitch channel, with 16 participants that had qualified in the few weeks leading up to the event. Harry Hong, the 2014 CTWC champion, was the tournament's first victor. Didion opened a Twitch account dedicated to CTM, called MonthlyTetris, shortly after he began hosting. Additionally, the CTM Discord server is in many ways the center of the Classic Tetris Community, serving as its primary online meeting space.

Classic Tetris European Championship (CTEC)

[edit]

Since 2015, a Classic Tetris European Championship has been played annually in Copenhagen. The tournament follows a similar structure, but is played on the PAL version of NES Tetris rather than the NTSC version. Due to the difference in framerates, the two versions of the game (both of which are designed for the NES) are balanced differently; pieces do not fall at identical speeds on the same level between the two versions. In addition, Delay Auto Shift (DAS) is faster in PAL compared to NTSC. At higher level play, this leads to significant differences in strategy and outcome. In particular, players who employ DAS as their primary strategy are able to play at the highest level.

See also

[edit]

References

[edit]
  1. ^ a b "Classic Tetris World Championship Coming to Los Angeles". Wired. August 3, 2010. Archived from the original on October 13, 2020. Retrieved July 1, 2015.
  2. ^ a b c Christopher MacManus (October 17, 2011). "Meet the new Tetris world champs". CNET News. Archived from the original on November 12, 2020. Retrieved July 6, 2015.
  3. ^ Classic Tetris World Championship (January 5, 2024). Classic Tetris World Championship 2024 Announcement. Archived from the original on January 6, 2024. Retrieved January 5, 2024.
  4. ^ "Tetris Championship Twitter". Twitter. Archived from the original on November 15, 2021. Retrieved November 15, 2021.
  5. ^ "Official Classic Tetris World Championship Site". Archived from the original on October 18, 2011. Retrieved July 1, 2015.
  6. ^ "CTWC Official on Instagram". Archived from the original on December 23, 2021. Retrieved November 11, 2018.
  7. ^ "Official CTWC Rules". Archived from the original on May 13, 2020. Retrieved February 16, 2020.
  8. ^ "East Kentwood High School student wins Tetris World Championship". WOODTV.com. October 21, 2022. Archived from the original on December 30, 2023. Retrieved December 30, 2023.
  9. ^ a b Rivera, Carla (August 8, 2010). "World Tetris Championship brings together nation's top-ranked players". Los Angeles Times. Archived from the original on September 24, 2021. Retrieved September 24, 2021.
  10. ^ a b Cornelius, Adam (October 21, 2011). Ecstasy of Order: The Tetris Masters (Documentary). Reclusion Films. Archived from the original on February 4, 2019. Retrieved November 12, 2018.
  11. ^ a b "Tetris World Championship". LA Weekly. October 18, 2011. Archived from the original on September 24, 2021. Retrieved September 24, 2021.
  12. ^ a b c "Classic Tetris World Championship". Archived from the original on October 18, 2011.
  13. ^ a b Tang, Chris (March 22, 2019). Tetris World Championship: Building Explosive Esports on 8-bit Nintendo. Game Developers Conference. San Francisco. Archived from the original on January 29, 2024. Retrieved January 29, 2024.
  14. ^ a b c Macgregor, Jodi (January 9, 2021). "Tetris champion Jonas Neubauer has died". PC Gamer. Archived from the original on January 4, 2024. Retrieved January 3, 2024.
  15. ^ Smith, Brian; Kerr, Alex (July 15, 2014). "Foreword". Tricks of the Classic NES Tetris Masters. CreateSpace Independent Publishing Platform. ISBN 978-1500542191.
  16. ^ "Meet Fresno's Tetris champion". ABC7 Chicago. November 4, 2011. Archived from the original on September 25, 2021. Retrieved September 24, 2021.
  17. ^ "Results - Official Classic Tetris World Championship Site". Archived from the original on December 10, 2020. Retrieved November 12, 2018.
  18. ^ Kilbride, Michael J. (October 29, 2019). "Boom, Tetris for Joseph! Classic Tetris World Championship crowns new king". The Torch. Archived from the original on January 4, 2024. Retrieved January 3, 2024.
  19. ^ a b Trew, James (May 6, 2022). "How Gen Z is pushing NES Tetris to its limits". Engadget. Archived from the original on January 18, 2024. Retrieved January 3, 2024.
  20. ^ a b Sweet, Jacob (March 26, 2021). "The Revolution in Classic Tetris". The New Yorker. Archived from the original on January 17, 2024. Retrieved January 8, 2024.
  21. ^ Gilbert, Ben (October 23, 2018). "A 16 year old just became the new world champion of 'Tetris' — see the remarkable video of the winning game right here". Business Insider. Archived from the original on January 9, 2024. Retrieved January 9, 2024.
  22. ^ a b c Karnadi, Chris (July 21, 2022). "Teens are rewriting what is possible in the world of competitive Tetris". Polygon. Archived from the original on January 15, 2024. Retrieved August 1, 2022.
  23. ^ Wade, Jessie (October 22, 2018). "16-Year-Old Becomes New Tetris World Champion". IGN. Archived from the original on January 9, 2024. Retrieved January 9, 2024.
  24. ^ Leporati, Gregory (May 3, 2021). "Competitive 'Tetris' was soaring, then it lost a legend. What comes next is a puzzle". The Washington Post. Archived from the original on May 5, 2021. Retrieved January 12, 2024.
  25. ^ CTWC. "Our recap of the 2018 CTWC on ESPN 2's The OCHO airs tomorrow at 4pm Eastern/1pm Pacific!". www.facebook.com. Archived from the original on January 12, 2024. Retrieved January 12, 2024.
  26. ^ "How to watch ESPN8: The Ocho, 2023 edition". ESPN.com. August 2, 2023. Archived from the original on December 5, 2023. Retrieved January 12, 2024.
  27. ^ "Rules 2020 – Classic Tetris World Championship". Archived from the original on July 16, 2020. Retrieved July 15, 2020.
  28. ^ EricICX (August 11, 2023). "The History of NES Tetris World Records". YouTube. Archived from the original on September 21, 2023. Retrieved September 25, 2023.
  29. ^ "2023 10 - XXX-N - CTWC 2023, Portland, OR - Google Drive". Archived from the original on December 1, 2023. Retrieved October 17, 2023.
  30. ^ "2024 06 - XXX-N - CTWC 2024, Pasadena, CA : DATA - Quals". Archived from the original on June 8, 2024. Retrieved June 8, 2024.
  31. ^ "CTWC 2016 Sponsorship Packet" (PDF). Archived (PDF) from the original on July 6, 2024. Retrieved July 7, 2024.
  32. ^ "CTWC VIII 2017 Sponsorship Packet" (PDF). Archived (PDF) from the original on June 13, 2024. Retrieved July 7, 2024.
  33. ^ "CTWC 2018 Sponsorship Packet" (PDF). Retrieved July 7, 2024.
  34. ^ "Official rankings of CTWC from 2012 to 2022". CTWC. Archived from the original on December 10, 2020. Retrieved January 3, 2022.
  35. ^ "First Level 30 Live at CTWC! Joseph Saelee OWNS Tetris Qualifiers - CTWC 2018". CTWC. December 11, 2018. Archived from the original on January 4, 2020. Retrieved December 8, 2019.
  36. ^ "Official Maxout & Level 31 at CTWC (OWR)". Joseph Saelee. October 23, 2019. Archived from the original on July 7, 2022. Retrieved December 10, 2019.
  37. ^ a b "2019 CTWC Classic Tetris Rd. 3 - Part 1 - JOSEPH/GREENTEA". CTWC. November 18, 2019. Archived from the original on December 31, 2019. Retrieved December 8, 2019.
  38. ^ "CTWC UK 2024 Championship Day 2 | Full Tournament | Live from Manchester England". YouTube. August 4, 2024. Archived from the original on August 18, 2024. Retrieved August 18, 2024.
  39. ^ "CTWC Vietnam 2024 - Semis and Finals!". YouTube. August 18, 2024. Archived from the original on August 18, 2024. Retrieved August 18, 2024.
  40. ^ "Dr. Mario Championship RDS. 1-2 — Can Tetris Masters Dr. Mario?". YouTube. February 19, 2019. Archived from the original on January 14, 2024. Retrieved January 14, 2024.
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