YuukiTheFlash

YuukiTheFlash

Toki from Kobayashi Ritz's Saki
Full name	YuukiTheFlash (閃光 勇気)
Country	USA
Club	Northwestern University Riichi Mahjong
ID	Toki玄, Kuro怜, Onjouji怜, Kikuko<3, Toki園城寺

Mahjong Biography

YuukiTheFlash (閃光 勇気) is an amateur Riichi Mahjong player who first picked up the game in May 2018, at a Northwestern University Riichi Mahjong club meeting, where he was introduced to it by 鳥星雨 and taught from scratch by Kyuu. Yuuki later learned more strategic mahjong play from ペンギンヒーロー and もふもふ藍, members of Chicago Area Mahjong. He goes by the pseudonyms of Toki玄, Kuro怜,Onjouji怜, and Kikuko<3 on Tenhou. Yuuki's Majsoul ID is Kuro怜 for both his CN and EN server accounts. While Yuuki regularly plays club mahjong with both Northwestern University Riichi Mahjong and Chicago Area Mahjong, he also occasionally plays online with the Tenhou Tuesday group. In addition, Yuuki has met and played with members of USPML.

Yuuki plays as the Vanguard of Northwestern University Riichi Mahjong club's competitive mahjong team. As Vanguard, he was the top scorer, scoring 32.1k points in one hanchan, during the club's inaugural team tournament hosted on Tenhou, with which the Northwestern Team won.

Yuuki is an avid fan of Kobayashi Ritz's Saki series, where his favorite character is Senriyama's Vanguard, Onjouji Toki. Subsequently, he also plays as vanguard. Furthermore, Yuuki's favorite yaku is Ippatsu 一発, and his favorite yaku combination is Ippatsu Tsumo, as it is Toki's signature hand. Although he has never scored it or seen it live, Yuuki's favorite Yakuman is Tenhou 天和. (There was a period of time where Yuuki was obsessed with Daisangen, which has since dulled after he scored it multiple times on Tenhou). Yuuki's proudest hand that he has scored is what he refers to as his "Toki Kazoe", a Kazoe Yakuman scored in casual play, where Ippatsu Tsumo on his takame tile gave him exactly 13 Han needed for the Yakuman (Riichi, Ippatsu, Tsumo, Pinfu, Ryanpeikou, Honitsu, Dora 2, Akadora 1).

Tournament Play

Date(s)	Event	Venue	Medium	Ruleset	Placement / Total
July - August 2018	2018 IORMC USA Qualification	Tenhou.net	Online	IORMC Rules	5 / 26
November 2, 2018	NURM Team Tournament	Tenhou.net	Online	NURM Team Tournament	1 / 4 , Top Scorer 1 / 12
April 13, 2019	NURM 2019 Spring Open	Northwestern University	Physical Tiles	NURM Spring Open	10 / 17
July - August 2019	2019 IORMC USA Qualification	Tenhou.net	Online	IORMC Rules	8 / 19

Tenhou.net

4-Player Ranked Statistics

Statistics taken as of 08-15-19.

Name	Tenhou Rank	Games	First Game	Last Game	Best	Worst	Rank Avg	Avg Score	Sources
Toki玄	(四段 r1873)	155	05-06-2019	08-15-2019	+96	-61	2.30	+7.4	[1][2]
Kikuko<3	(四段 r1718)	497	05-24-2018	08-25-2018	+91	-61	2.52	+0.32	[3][4]
Onjouji怜	(三段 r1889)	87	08-17-2018	09-13-2018	+87	-58	2.14	+12.9	[5][6]
Kuro怜	(三段 r1754)	364	12-30-2018	03-28-2019	+109	-71	2.41	+3.89	[7][8]
Toki園城寺	(５級)	6	08-28-2018	09-07-2018	+61	+50	1.00	+56.3	[9][10]

Name	Games	1st Rate	2nd Rate	3rd Rate	4th Rate	Hand Win	Deal In	Riichi	Call	Source
Toki玄	155	29.7%	25.8%	29.0%	15.5%	23.1% (Avg)	11.1% (Low)	17.6% (Avg)	33.4% (Avg)	[11]
Kikuko<3	497	25.3%	23.7%	24.3%	26.5%	22.2% (Avg)	14.4% (High)	21.9% (High)	33.1% (Avg)	[12]
Onjouji怜	87	41.3%	20.6%	19.5%	18.3%	25.8% (High)	13.0% (Avg)	20.4% (High)	38.8% (High)	[13]
Kuro怜	364	27.1%	25.8%	25.2%	21.7%	22.6% (Avg)	14.1% (High)	18.3% (Avg)	31.4% (Low)	[14]
Toki園城寺	6	100.0%	0.0%	0.0%	0.0%	37.5% (High)	8.9% (Low)	25.0% (High)	35.7% (Avg)	[15]

Milestones/Records

Sources: [16][17][18][19]

9級 06-05-2018 8級 06-06-2018 7級 06-07-2018 6級 06-08-2018 5級 06-09-2018

4級 06-09-2018 3級 06-10-2018 2級 06-10-2018 1級 06-12-2018 初段 06-12-2018

二段 06-16-2018 三段 07-03-2018 四段 08-13-2018 特上 (四段 R1800+) 08-15-2019 Highest Score: +109.0 Longest First Place Streak: 6 Games

Majsoul

4-Player Ranked Statistics

Statistics taken as of 05-01-19. Note, that Majsoul has an uma of +15, +5, -5, -15, a contrast to Tenhou's uma of +20, +10, -10, -20. Yuuki's score of +130.7 after finishing with 140,700 points is the high score on Majsoul's EN server.

Name	Server	Majsoul Rank	Games	First Game	Last Game	Best	Worst	Rank Avg	Sources
Kuro怜	CN	(Jangou ★★)	164	03-25-2019	05-01-2019	+70.7	-83.6	2.07	[20][21][22]
Kuro怜	EN	(Novice ★★★)	5	04-27-2019	05-01-2019	+130.7	-27.5	2.00	[23][24][25]

Name	Server	Games	1st Rate	2nd Rate	3rd Rate	4th Rate	Hand Win	Hand Win (Tsumo)	Deal In	Riichi	Call	Source
Kuro怜	CN	125	38.41%	28.66%	20.12%	12.80%	25.72% (High)	32.45% (High)	14.07% (Avg)	20.11% (High)	38.42% (High)	[26]
Kuro怜	EN	5	40.00%	40.00%	0.00%	20.00%	27.91% (High)	8.33% (Low)	9.30% (Low)	16.28% (Avg)	48.84% (High)	[27]

Playing Style

YuukiTheFlash has an aggressive leaning play-style, oftentimes pushing bigger hands, while not being afraid to attack for cheaper, faster ones. This attack-oriented style is shown by his average deal in rate (放銃率 - Houjuu ritsu) of around 13.8% across his former two main Tenhou accounts. Yuuki's aggressive play is more strongly reflected in his higher than average hand win rate (和了率 - Houra ritsu), of 26.2% on his Onjouji怜 account, and an overall average of 24.2% across both accounts. In addition, Yuuki tends to be more of a Menzen-type player, shown by his high Riichi rate (立直率 - Riichi ritsu) above 21.9%, and more often than not - refuses to Damaten unless there is a clear advantage to doing so. Nonetheless, Yuuki does at times play like Atarashi Ako, a character in the Saki series who is unmatched in her speed through calling. Yuuki's Call rate (副露率 - Fuuro ritsu) across his two accounts is 36.1%, which is average, but his more recent Onjouji怜 account has a high call rate of 39.1%, showing clear influence from Ako's play. (Note that this is as of 9-07-18, and credit goes to Tina for her article on how to interpret Tenhou stats).

Yuuki tries to emulate Onjouji Toki's play-style in his overall mahjong play, by attempting to predict the tiles he will draw, and building his hand based on that, instead of going by probability. Toki is known for doing this with her future sight ability, which allows her to see exactly what tiles she will draw next. This makes her specialty Ippatsu Tsumo, as she Riichis when she sees that she will tsumo the next turn. While Yuuki is far from Toki's mahjong level and ability, he has shown flashes of Toki-style play, with instances including his chase of 2 Riichis (one was a dealer Riichi that happened to be a Sanmenchan wait) with a dora tanki only to Ippatsu Tsumo that hand; and his "Toki Kazoe" hand where he dama'd 3 turns before Riichi, and his Ippatsu Tsumo after the Riichi got him exactly 13 han.

Yuuki's play has also seen heavy influence from Matsumi Kuro, Achiga's Vanguard in the Saki series. Kuro is hailed as Achiga's Dragon Lord due to her ability to draw every dora tile in the game. However, because Kuro values these dora highly, she refuses to discard any of them, breaking tenpai many times while adding more dora to her hand. Likewise, despite Yuuki not having the power to draw all the dora, he also tends hold onto them, opting to break better waits in favor of dora tanki.

Due to Yuuki's disdain for Miyanaga Saki, the protagonist of the Saki series who specializes in Rinshan kaihou 嶺上開花, he often rejects calling Kan. However, when he does Kan, it usually is not good for him. Instances of this include Yuuki getting hit by Chankan 搶槓 while trying to to rinshan, and more notably a time when he called Kan twice during his dealer Riichi, with a sanmenchan wait, but not only did he fail to Rinshan both times, but the kans gave an oikake Kamicha Riichi dora 10 after she tsumos, winning her a Sanbaiman, forcing Yuuki to pay the dealer penalty plus his riichi stick.

Yakuman 役満

As of 07-29-2019, YuukiTheFlash's Yakuman count is at 22 (5 via Majsoul, 9 via Tenhou.net, and 8 on Real Tiles). Only Yakuman scored in 4-Player are counted. His Yakuman completion include: Daisangen, Tsuuiisou, Kokushi Musou, Shousuushii, Suuankou, Suuankou Tanki, Ryuuiisou, and Kazoe Yakuman. To date, Yuuki has won every single 4-Player hanchan where he has scored a Yakuman (20/20, two were double Yakuman). Here are Yuuki's more detailed Yakuman statistics.

Yakuman Stats Summary

Total	Tsumo	Ron	Oya	Majsoul	Tenhou	Online	Real Tiles	Most Scored	Average Placement
22	4	18	7	5	9	14	8	Daisangen (7)	1.00

国士無双 (KMU)	大三元 (DSG)	四暗刻 (SUA)	小四喜 (SSS)	大四喜 (DSS)	字一色 (TSU)	緑一色 (RYU)	清老頭 (CHR)	九連宝燈 (CHU)	四槓子 (SUK)	天和 (TEN)	地和 (CHI)	数え (KAZ)	四暗刻単騎 (SUAT)	純正九蓮宝燈 (JCHU)	国士無双１３面 (KMU13)
2	7	1	5	0	2	1	0	0	0	0	0	2	2	0	0

Majsoul

#	Date	Yakuman	Room	Oya	Notes	Source
1	04-03-2019	Daisangen 大三元	Silver	No	Ron: Yuuki's first Majsoul Yakuman, declining a 3p Shousangen mangan ron on toimen early, only to bust him later with the larger dragons, to gyakuten and take first.	[28][29]
2	04-19-2019	Daisangen 大三元	Jade	No	Ron: Yuuki's second Majsoul Yakuman, one where Shimocha would have paid sekinin barai for dropping the haku after 2 dragon calls, had he not been hit for the full 32k.	[30][31]
3,4	05-01-2019	Tsuuiisou 字一色 Daisangen 大三元	Bronze	Yes	Ron: Yuuki's third and fourth Majsoul Yakuman, that came out of a terrible haipai. This hand is the single largest hand Yuuki has ever scored, worth a total of 96,000, direct ron on kamicha. Yuuki also finished with his highest score ever at 140,700 points (from 25k start) with a Majsoul plus minus of +130.7.	[32][33]
5	06-13-2019	Suuankou 四暗刻	Jade	No	tsumo: Yuuki's first Suuankou (tsumo), a crazy hand that had potential for triple Yakuman if the 3m been sha.	[34][35]

Tenhou.net

#	Date	Yakuman	Room	Oya	Notes	Source
1	06-10-2018	Daisangen 大三元	一般	No	Ron: Yuuki's first Yakuman; Hadaka tanki ron on Toimen, who shared the pain with Kamicha due to Sekinin barai.	[36]
2	06-13-2018	Daisangen 大三元	上級	No	Ron: A gyakuten ron 7 discards in, hitting the leader, Kamicha, on South 1 Honba 2. Also, in South 3, Yuuki was iishanten for a Shousuushii, Tsuuiisou.	[37]
3	06-21-2018	Daisangen 大三元	上級	No	Ron: Yuuki was in third, pushing for first, dropping dangerous tiles including dora to keep Daisangen tenpai, which paid off with a ron on Shimocha to win the game.	[38]
4	08-31-2018	Shousuushii 小四喜	3003	Yes	Ron: Yuuki's first Oya Yakuman, a gyakuten passing first place Kamicha, who was at 58k, to win the game. Ron 鳥星雨 (Shimocha) on East tile, who yelled "hit me" in voice chat right before being hit.	[39]
5	01-28-2019	Ryuuiisou 緑一色	一般	Yes	Tsumo: Oya Yakuman while already far up in first at 49.3k. The lead allowed Yuuki to push hard for the Ryuuiisou, which eluded him for so long (6th tenpai). The hand helped score his highest ever Tenhou format plus minus, with +109.	[40]
6	02-28-2019	Shousuushii 小四喜	上級	No	Ron: Yuuki's third Shousuushii, on jigoku 西. Ending the game on the first hand, Yuuki has now scored Shousuushii with shabo 東, 北 tanki (jigoku), now 西 tanki (jigoku), 南 is next.	[41]
7	07-28-2019	Shousuushii 小四喜	上級	No	Ron: Yuuki's Shousuushii #4, another one winning on 北, after he pushed hard against shimocha's early riichi. Mangan tenpai was declined for this.	[42]
8, 9	07-29-2019	Tsuuiisou 字一色 Shousuushii 小四喜	上級	No	Ron: Yuuki's second double Yakuman, this time Shousuushii paired with Tsuuiisou. A fairly straightforward win, he declined a Honroutou sanbaiman tenpai to pursue the double, scoring him his second largest hand ever worth 65k.	[43]

Real Tiles

#	Date	Yakuman	Oya	Location	Notes	Source
1	06-20-2018	Kokushi Musou 国士無双	No	Northwestern University Riichi Mahjong Club Play	Ron: Yuuki's first Yakuman on real tiles, ron on the final 9m, ending game in East 1. Kyuu (Kamicha) had a Yakuman hand as well.	[44]
2	09-01-2018	Kazoe Yakuman 数え役満	No	Casual Play with Friends	Tsumo: "Toki Kazoe" - Ippatsu Tsumo on takame for exactly 13 han (Riichi, Ippatsu, Tsumo, Pinfu, Ryanpeikou, Honitsu, Dora 2, Akadora 1).	[45]
3	10-10-2018	Suuankou Tanki 四暗刻単騎	Yes	Northwestern University Riichi Mahjong Club Play	Ron: Yuuki's second ever Oya Yakuman, a gyakutan to take first after entering Oorasu in 4th at 17.1k. This was the second ron called in the entire hanchan, (the first being called in South 3, when Yuuki ronned first place Kamicha with a mangan).	[46]
4	11-07-2018	Suuankou Tanki 四暗刻単騎	No	Northwestern University Riichi Mahjong Club Play	Ron: Yuuki's second Suuankou Tanki, coming nearly a month after his first. He called riichi in order to bait the haku tanki out of players who were defending, as one was out. Interestingly enough, all of Yuuki's Suuankous to date have been won off of rons (2/2), this one being on the houtei tile. The directed Yakuman in South 2 ended the game by busting toimen, allowing Yuuki to pass Shimocha who was first at 43.8k.	[47]
5	11-10-2018	Shousuushii 小四喜	No	Chicago Area Mahjong Club Play	Tsumo: Yuuki's first Yakuman scored while playing at Chicago Area Mahjong, and his second ever Yakuman tsumo, on the jigoku pei, after kanning once into a riichi, and refusing to kan a second time (daiminkan ton, didn't kan nan), aligning the tiles perfectly for the tsumo. Prior to this hand, he was in last at 4k, so the Yakuman was a gyakuten to help him take first, capping off his 5th first out of 6 games at the club that day.	[48]
6	01-12-2019	Daisangen 大三元	Yes	Chicago Area Mahjong Club Play	Ron: Yuuki's first Daisangen scored while playing on real tiles, and it happened to be the first Yakuman scored of the 2019 year at Chicago Area Mahjong! The Oya Yakuman is the second largest scoring hand for Yuuki to date, worth a total of 50.3k, counting 2 riichi sticks and the honba points. This Daisangen pushed Yuuki's Yakuman count to double digits (his 10th), and he even dropped a live dora into a riichi on ippatsu turn to push it!	[49]
7	05-04-2019	Kokushi Musou 国士無双	No	Chicago Area Mahjong Club Play	Ron: Yuuki's second Kokushi musou which was also a dama ron on 9m just like his first one. This non-oya Kokushi was scored while Yuuki was so far in the lead that he had no troube pushing it in oorasu against two non-oya riichis.	[50]
8	06-13-2019	Kazoe Yakuman 数え役満	Yes	Casual Play with Friends	ron: "Sankantsu Kazoe" - A dora-less oya Kazoe of exactly 13 han (Sankantsu, San ankou, Toi toi, Honitsu, Honroutou, Dabuton, Hatsu), completing Yuuki's first ever sankantsu scored with ron on jigoku nan.	[51]

Yaku Highlights

These are some of the more interesting yaku and yaku combinations (non-Yakuman) YuukiTheFlash has scored.

Date	Location	Yaku(s) of Interest	Value	Notes	Source
06-19-2018	Tenhou 7863	Chankan, Ippatsu	8000	Yuuki's first Chankan ever scored happened to be paired with his favorite yaku, Ippatsu. The winning mangan in Oorasu allowed him to take second.	[52]
07-17-2018	Tenhou 上級	Hatsu, Honitsu	5200	Almost a Ryuuiisou, but was not because of the 1s in Yuuki's winning hand. He wanted to decline the ron on Shimocha to get in tenpai for Ryuuisou with a 2s tanki, but had autowin turned on. From then on, Yuuki always has autowin turned off when playing on Tenhou.net.	[53]
08-07-2018	Tenhou 7863	Ryanpeiko, Chanta	18000	Yuuki had a Chanta haipai and later declined a Chiitoitsu tenpai by dropping an aka 5s to go for Ryanpeiko with Chanta. His wait was a kanchan 8m with one already out and another in his hand. Despite this, he decided to riichi and ended up tsumoing the 8m for an oya haneman.	[54]
09-07-2018	Tenhou 3003	Rinshan Kaihou, Haku	3900	Yuuki was in tenpai for a Haku nomi, with a bad kanchan wait on the 2m. After drawing the fourth Haku, he decides to Kan (which usually is not good for him), and tsumos the 2m to complete the Saki special, Rinshan Kaihou 嶺上開花. In hindsight, there were only two 2m tiles left, and because of Yuuki's generally terrible kan luck, this was one for him to remember.	[55]
09-10-2018	Tenhou 上級	Toi Toi, Honitsu, Hatsu, Haku, Nan	12000	Yuuki had a haipai for toi toi with yakuhai and ponned each pair as they came out. Unfortunately, he never ended up drawing either dora (east) or a chun tile, and tanki on them, otherwise he would have been able to add Honroutou with either dora 2 or Shousangen for a Sanbaiman.	[56]
11-27-2018	Tenhou 上級	Chinitsu, Ryanpeiko, Pinfu	16000	A beautiful Menchin hand won on the takame, giving Ryanpeiko and Pinfu as well for a 10 han baiman.	[57]
02-01-2019	Tenhou 上級	Rinshan Kaihou, Toi Toi, San Ankou, Pei	16000	Yuuki's largest hand won with Rinshan Kaihou, which was a 10 han baiman to gyakuten and take first in Oorasu.	[58]
02-19-2019	Tenhou 上級	Ryanpeiko, Tanyao	18000	Ryanpeiko, Chanta was done previously, so now it was time for Ryanpeiko, Tanyao which was also worth a dealer haneman tsumo.	[59]

Unusual Highlights

These are some unusual situations that YuukiTheFlash has been a part of, while playing Riichi Mahjong.

Date	Location	Situation	Description	Source
06-28-2018	Tenhou.net	Agari Renchan Deny West Win - First to score over 30k points in West, and still not win under normal Tenhou rules.	In South 4, Shimocha tsumo'd forcing a West round, as no one was above 30k (due to the Enchousen rule). Then in West 1, the dealer (Kamicha), and Yuuki double ron'd Toimen allowing Yuuki to pass 30k (going to 31.8k), while Kamicha goes to 29.9k. However, because of agari renchan, Kamicha is entitled to another hand, which he wins, passing Yuuki in West 1 Honba 1 to win the hanchan.	[60]
08-11-2018	Chicago Area Mahjong Club Play	Perfect Houtei Sanchahou 三家和 - One of three players to ron the houtei tile dropped by the dealer.	In South 3 Honba 1, the dealer is in last and needed to push tenpai, despite one riichi being on the table. The dealer draws the haitei tile but is not tenpai and decides to drop the dangerous dora, which is the 4s, as the houtei tile. This prompts the 3 others players, who happen to be waiting on dora, to call ron, forcing a Tochuu ryuukyoku by Sanchahou, allowing the dealer to continue his dealership. In the picture, Yuuki is Kamicha, who was waiting on 1, 4, 7s, a Sanmentan wait.	[61]
08-11-2018	Chicago Area Mahjong Club Play	Saki Rinshan Curse - Punishing failure to Rinshan during his dealer riichi after 2 ankans.	As dealer in East 1, Yuuki is the first in tenpai with 2 ankous in his hand, and a sanmenchan wait on 5m, 8m, and East, so he Riichi's. During his Riichi he is able to Kan twice but fails to rinshan both times. Kamicha decides to oikake after receiving many dora in her hand from the kans. She ends up tsumoing and after the uradora flips she wins a Sanbaiman, (Riichi, Tsumo, Dora 6, Uradora 4).	[62]

Onjouji Toki ‎(園城寺 怜)

This final section is dedicated to YuukiTheFlash's favorite mahjong player, Onjouji Toki (‎園城寺 怜), of the Saki series. Toki is Senriyama's Ace, playing in the Vanguard position, as she possesses the future sight ability which allows her to see several turns ahead on what tiles she or her opponents will draw. Thus, Yuuki rooted for the Senriyama team during the 71st Inter High School Mahjong Championships, where the team consisting of Onjouji Toki (Vanguard), Nijou Izumi (Sergeant), Eguchi Sera (Lieutenant), Funakubo Hiroko (Vice Captain), and Shimizudani Ryuuka (Captain) placed 5th out of 52 teams. Toki personally finished the nationals tournament scoring a total of +45.6k points, or an average of +9.12k per game, across the five recorded hanchans (two in quarters and semis, one in match for fifth) she played. From those recorded stats, Toki had an average placement of 1.40, and if Tenhou oka and uma were used, (weighted properly for the five hanchans), Toki would have an average score of +37.08. Onjouji Toki is also the main character of the manga, "Toki", a spinoff of the Saki series focusing on Toki during her elementary and middle school days.

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