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Participated in CTF events

Overall rating place: 1723 with 22.361 pts in 2022

Country place: 52

PlaceEventCTF pointsRating points
49SECCON CTF 2022 Quals915.000022.361

Overall rating place: 25662 with 0.515 pts in 2021

Country place: 200

PlaceEventCTF pointsRating points
129LINE CTF 2021100.00000.515

Overall rating place: 3225 with 10.136 pts in 2020

Country place: 89

PlaceEventCTF pointsRating points
47SECCON 2020 Online CTF631.000010.136

Overall rating place: 854 with 29.507 pts in 2019

Country place: 43

PlaceEventCTF pointsRating points
7SECCON 2019 Final Japan competition1631.00008.422
45SECCON 2019 Online CTF1954.000012.704
1815picoCTF 20197300.00000.000
348Newark Academy CTF 20192410.00006.682
339CSAW CTF Qualification Round 2019201.00001.698

Overall rating place: 624 with 31.926 pts in 2018

Country place: 30

PlaceEventCTF pointsRating points
7SECCON 2018 Final Japan competition1141.00000.000
28SECCON 2018 Online CTF2535.000016.554
170DEF CON CTF Qualifier 2018411.00007.369
1530CTF/TCTF 2018 Quals93.00000.961
60Harekaze CTF 2018630.00005.399
137Insomni'hack teaser 201899.00001.643

Overall rating place: 367 with 42.603 pts in 2017

Country place: 19

PlaceEventCTF pointsRating points
84SECCON 2017 Online CTF1900.00009.263
391CSAW CTF Qualification Round 2017326.00001.311
171Tokyo Westerns CTF 3rd 2017146.00002.024
88Trend Micro CTF 2017 - Raimund Genes Cup - Online Qualifier500.00002.467
43WhiteHat Contest 13400.00002.465
102DEF CON CTF Qualifier 2017172.00004.868
95ASIS CTF Quals 2017375.00003.016
24April Fools' GTF 20171643.00000.000
141VolgaCTF 2017 Quals600.00003.350
1280CTF 2017 Quals201.00001.746
201Xiomara CTF 2017101.00000.519
281Boston Key Party CTF 201751.00000.865
425BSides San Francisco CTF30.00000.161

Overall rating place: 544 with 19.738 pts in 2016

Country place: 30

PlaceEventCTF pointsRating points
145SECCON 2016 Online CTF500.00002.515
300HITCON CTF 2016 Quals100.00001.407
424H4ckIT CTF 2016 Online30.00000.137
374CSAW CTF Qualification Round 2016301.00001.478
105Tokyo Westerns/MMA CTF 2nd 2016510.00004.677
330IceCTF 20161051.00000.000
61Trend Micro CTF 2016 Online Qualifier700.00004.423
58WhiteHat Contest 11100.00001.034
267DEF CON CTF Qualifier 201621.00000.650
145Google Capture The Flag 2016700.00003.416

Overall rating place: 660 with 12.576 pts in 2015

Country place: 53

PlaceEventCTF pointsRating points
42SECCON 2015 Online CTF2500.000012.576

Team members

Team writeups

SECCON 2019 Online CTFOption-Cmd-U [190]read writeup
SECCON 2019 Online CTFSPA [427]read writeup
SECCON 2019 Online CTFcoffee_break [56]read writeup
SECCON 2016 Online CTFVoIP [100]read writeup
SECCON 2016 Online CTFAnti-Debugging [100]read writeup
SECCON 2016 Online CTFMemory Analysis [100]read writeup
IceCTF 2016Flagstaff [120]read writeup
IceCTF 2016Over the Hill [65]read writeup
IceCTF 2016l33tcrypt [90]read writeup
IceCTF 2016RSA [60]read writeup
IceCTF 2016Alien Message [40]read writeup
IceCTF 2016IRC I [35]read writeup
IceCTF 2016Toke [45]read writeup
IceCTF 2016Dear diary [60]read writeup
IceCTF 2016Kitty [70]read writeup
IceCTF 2016RSA? [50]read writeup
IceCTF 2016Search [40]read writeup
IceCTF 2016Demo [55]read writeup
IceCTF 2016Time Traveler [45]read writeup
IceCTF 2016Substituted [30]read writeup
IceCTF 2016Rotated! [20]read writeup
IceCTF 2016All your Base are belong to us [15]read writeup
IceCTF 2016Spotlight [10]read writeup
IceCTF 2016RSA2 [90]read writeup
WhiteHat Contest 11Ultimate Design Tool [100]read writeup