American Go E-Journal » Cotsen Open

Mark Lee 7d sweeps to win 4th Cotsen Open title

Sunday October 14, 2018

As expected, the key game determining the 2018 Cotsen Open winner was Round 4 on Sunday morning, when defending 2018.10.14_lee-sweeps-cotsenchampion Mark Lee 7d faced Andy Liu 1P, both 3-0. The two players wasted no time getting down to business, beginning playing while the room was still bustling with noisy players finding their seats. The opening played out very quickly, with Liu taking cash and 2018.10.14_liu-leeLee sketching out a large moyo. Liu’s AlphaGo-like move 45, adjacent to the center star point on the very edge of Lee’s right-side moyo, set the tone for the rest of the game, as Lee fiercely attacked Liu’s eyeless dragon and the fighting got ever more complicated as ladders and nets spiraled out across the board (see game record, below). As more than 130 viewers on KGS hotly debated whether Liu’s group would survive, the players moved into an extended and complex endgame battle for sente and the handful of points that would secure a victory, and the championship. In the end, Lee’s endgame tesujis prevailed and Liu resigned, a few points behind on the board, plus komi. “Andy’s very strong,” Lee said, “it was a tough game.” Liu returned the compliment, saying that Lee “played well; it was really a great game.” Lee went on to win the final round against Luan Bo 6d to complete his 5-0 sweep and collect his fourth consecutive Cotsen Open championship. “We may need to re-name this the Mark Lee title,” joked Eric Cotsen, who thanked all the players for turning out for the 29th annual tournament. “You’re what makes this event so special.”

2018.10.14-cotsen-winnersResults
Open section: 1. Mark Lee 5 wins; 2. Andy Liu 4 wins; 3. Bowen Zhang 4 wins; 4. Yufei Jin 3 wins; 5. Bo Luan 3 wins; 6. Qi-Hao Zhou 3 wins
Division A: 1. Yuelun Yang 5 wins; 2. William He 5 wins; 3. King Bi 4 wins
Division B: 1. Josiah Frias 5 wins; 2. Ernest French 5 wins; 3. Kosuke Sato 4 wins
Division C: 1. Anthony Long 5 wins; 2. Han Chung 5 wins; 3. Michael Mei 4 wins
Division D: 1. Lev Marcus 5 wins; 2. Chris Kaynor 5 wins; 3. Luke Belyeu 4 wins
Division E: 1. Tony Yang 5 wins; 2. Kevin Yang 5 wins; 5. Lucia Moscola 5 wins

Club winner: Orange County Go Club

- report/photos by Chris Garlock; click here for the 2018 Cotsen Open album on Facebook

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Cotsen Open Day 1: A surprise player, delays, dignitaries and free tacos

Sunday October 14, 2018

A surprise walk-in Saturday morning may be all that stands between Mark Lee 7d and his fourth consecutive Cotsen Open title. 2018.10.13_mark-lee-relaxingAndy Liu, the East Coast-based 1P, decided to make the trek to Los Angeles with some friends, and, like Lee (right, relaxing between rounds), was 3-0 at the end of a long day that started 90 minutes late due to delays following Friday night’s downpour and pairing issues. Neither top player had any trouble dispatching their opponents, however, and the clash of titans could occur 2018.10.13 Korean-dignitariesas soon as Round 4 Sunday morning, set for 10:30, and, failing that, almost certainly the final round, unless one of the other strong players manages to pull off an upset.

Despite the delays and overcast skies, the 155-strong field was in good spirits, enjoying casual games and of course the free Korean tacos from the Kogi food truck as well as free shoulder massages throughout the day. Tournament founder Eric Cotsen personally greeted each player as they waited on line to register and explained his mysterious Cotsen Go Tournament poster.

Local go fans who are early risers can check out the pro-pro game Sunday morning starting at 8a at the Korean Cultural Center, featuring Yilun Yang 7P.

The day began with a visit by visiting Korean dignitaries (left), who welcomed the assembled go players to the Korean Cultural Center, which has hosted the annual Cotsen Open for a number of years now. On hand were Kim Wan-joon, Consul General of Korea in Los Angeles, Kim Nakjung, Director of the KCCLA, Oh Seung Keol, President of the Korean Education Center, Los Angeles, Sen Neung-uk 9P, Na Jong Hoon 8P and Ahn Dal Hoon 9P.

- report/photos by Chris Garlock

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Strong field to vie for 2018 Cotsen Open title this weekend

Friday October 12, 2018

Looking to collect his fourth consecutive Cotsen Open title, Mark Lee 7d is facing a tough field of strong players this year, 2018.10.12_cotsen-set-upincluding Andrew Lu 7d, Bowen Zhang 7d, Hoon Jo 6d, William Lee 6d, Bo Luan 6d, Yi Wang 6d, Yixian Zhou 6d and Shengjie Zhou 6d. Registration for the 2-day tournament October 13-14 is already at 155, with players from 30 kyu to 7 dan, and walk-ins Saturday morning will be permitted: all players who want to play in the first round must be on line to sign in or register by 9:15a on Saturday. The tournament is held at the Korean Cultural Center (5505 Wilshire Blvd). Any questions, email cotsenopen@gmail.com. In addition to two days of competition, the Cotsen features free food truck lunches both days, roving masseuses and a pro-pro game Sunday morning. Follow the Board 1 action via the E-Journal on KGS and photos and news on AGA social media @thegaga on Twitter and @AmericanGoAssociation on Facebook.
photo: setting up on Friday; photo by Chris Garlock

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Cotsen registration deadline coming up soon

Wednesday October 3, 2018

Registration for the upcoming Cotsen Open closes on October 9th; click here now to register. The tournament is October 13-14 at the Korean Cultural Center in Los Angeles. In addition to the usual free shoulder massages, Kogi BBQ is 2018.10.03_2015-cotsen-IMG_0219catering both Saturday and Sunday; free lunch for all pre-registered attendees. Three Korean professionals — Dalhoon Ahn 9P, Seo Nungwuk 9P, and Na Jonghoon 8P — will be on hand for simul games on Saturday. “We will be streaming Hikaru No Go on the 3rd floor for anyone who wants to watch,” says TD Christopher Saenz.

Volunteers wanted for set-up, registration, game recording and post-tourney takedown; volunteers get a special dinner invitation and game recorders get E-Journal caps. Email cotsenopen@gmail.com ASAP if interested.

photo: 2015 Cotsen; photo by Brian Ferrari

 

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How to get to the top boards at the Cotsen Open

Monday September 24, 2018

What’s the fastest way to the top boards at the upcoming Cotsen Open? Volunteer as a game recorder! No previous 2018.09.22_cotsen-2016-IMG_2015experience necessary but you do need a laptop with KGS on it and must be available all day Saturday and/or Sunday, October 13/14 at the Korean Cultural Center in Los Angeles. Free E-Journal caps and lunch for all game recorders, plus credit in all our coverage. Email journal@usgo.org ASAP if interested.

photo: top-board game recording at 2016 Cotsen; photo by Chris Garlock

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Cotsen Open website back up; pre-register for full benefits

Saturday September 15, 2018

The website for the 2018 Cotsen Open is back up. The tournament is on October 13th-14th; pre-registration will close on2018.08.01-cotsen-open Tuesday, October 9th, at 11:59pm. Day-of registration will also be available for $25. Pre-registration comes with benefits, including $20 entry fee and free food truck lunch on both days. As always, everyone who pre-registers and plays in all 5 of their matches has their full entry fee refunded. Also on tap: the Kogi food truck both Saturday and Sunday and Yilun Yang will do his pro game on Sunday.

 

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Cotsen tourney registration opens

Wednesday August 1, 2018

With the annual US Go Congress just wrapped up, go fans looking for their next big go event can mark their calendars for the 2018.08.01-cotsen-open2018 Cotsen Open, set for Oct 13-14 in Los Angeles. Registration has just opened; click here to sign up. As always, pre-registration ($20) will allow attendees to get their money back on Sunday after competing in ALL five matches, AND a free food voucher for Saturday and Sunday. Otherwise pay $25 at the door and get no refund.  Organizers encourage using the PayPal system “to allow us to have a more accurate count of who is competing this year, which helps cut down the pairing time delay and speeds up the tournament starting on time.” If you have any questions please feel free to email Tournament Organizer Christopher Saenz cotsenopen@gmail.com. “We look forward to seeing you all again in October,” say Cotsen organizers.

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2018 Cotsen dates announced

Tuesday May 29, 2018

Free massages. Free lunch. Pro analysis. Oh yeah, and one of the best fields in the AGA tournament calendar. Mark your2018.05.29_cotsen2016-IMG_2039 calendar now for this year’s Cotsen Open, which has just confirmed for October 13-14 at the Korean Cultural Center in Los Angeles. Watch this space for registration, which is expected to open soon.

Meanwhile, organizers are looking for volunteers for set up, take down and during the event. Contact Ryan Murray ryan@thelec.com if interested.

Also, the E-Journal will be covering the tournament again this year, and is looking for a few good game recorders for the team. Email journal@usgo.org if interested.

photo: Eric Cotsen (r) and friends at the 2016 Cotsen Open; photo by Chris Garlock

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Mark Lee wins 3rd Cotsen title

Sunday October 22, 2017

Sweeping all five games, Mark Lee (left, with Eric Cotsen) won his third consecutive Cotsen Open title October 22 at the Korean Culture Center in Los 2017.10.22_cotsen-MarkLee-awardAngeles. All five wins were by resignation, including the exciting Round 4 game Sunday morning against Mateusz Surma. The European professional fell behind early but made skillful use of two weak groups to generate a thrilling game for viewers watching live on KGS as Surma chased a one-eyed dragon across the board. “Mateusz’ attack was a bit stronger than I expected,” said Lee. “I met him four years ago when we studied at the same school and he’s improved a lot since then.” See below for the game record, with commentary and variations by Lee.
Lee donated his $1,000 prize to the American Go Foundation, “to support its work training a new generation of go players.”

Winner’s Report:
Open: Mark Lee (5-0), Aaron Ye (4-1), Andrew Lu (4-1), Xiaocheng Hu (4-1), Mateusz Surma (3-2), Daniel Liu (3-2)
2-4d: Tyler Oyakawa (5-0), Jinming Pan (4-1), Pei Guo (4-1)
1d-2k: Kim In (4-1), Jay Chan (4-1), Irving Lai (4-1)
3k-7k: Matthew Hecht (4-1), Barnett Yang (4-1), Jonathan Zhang (4-1)
8k-19k: Heung Suh (5-0), Choashane Chang (4-1), Zongren Huang (4-1)
20-30k: Xiang Cai (5-0), Kyungsoo Lim (4-1), Alex Ledante
Club prizes: 1st: Santa Monica, 2nd: Orange County; 3rd: San Diego
- report/photo by Chris Garlock

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Mark Lee goes for “three-peat” at Cotsen Open

Saturday October 21, 2017

To say that defending Cotsen Open champion Mark Lee dominated his opponents in the first three rounds Saturday would not do justice to2017.10.21_MarkLee-right Lee’s play. “This is a slaughter,” said one viewer on KGS as Lee (right) effortlessly erased Daniel Liu’s (left) territory, leaving the 5-dan’s groups struggling pointlessly in Round 2. In the first round, Wang Yi 5d attacked Lee strongly, but was forced to resign after just 134 moves when his eyeless group came up short against Lee’s one-eyed group. In the third round, Aaron Ye, in a tenacious display of fighting spirit, threw everything he had at Lee — despite the relentless pressure of the overtime clock — but was unable to find a way to victory and, like Liu and Yi, was forced to resign.

Lee’s sweep Saturday puts him in position to capture the title for the third year in the final two rounds on Sunday, although Poland’s Mateusz Surma, also 3-0, may have something to say about that. Surma was just in Mexico for the Mexican Go Congress and decided to come up for the Cotsen. The top-board games will be broadcast live on KGS, and see photos on Twitter @theaga.

- report/photo by Chris Garlock

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