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Show new changes starting from 06:40, 24 April 2024
   

24 April 2024

N    06:32  Talk:2021 IMO Problems/Problem 2‎ (diff | hist) . . (+147)‎ . . Hbghlyj (talk | contribs) (Created page with "<h1>Solution incorrect</h1> The current "solution" is incorrect. --~~~~")
N    03:44  User:Kqxsbamien68‎‎ (2 changes | history) . . (+3,607)‎ . . [Kqxsbamien68‎ (2×)]
      03:44 (cur | prev) . . (-89)‎ . . Kqxsbamien68 (talk | contribs)
N     03:42 (cur | prev) . . (+3,696)‎ . . Kqxsbamien68 (talk | contribs) (Created page with "Trong thời đại hiện nay, việc tra cứu <a href="https://kqxs360.net/">kết quả xổ số ba miền</a> thông qua các trang web chuyên về lĩnh vực này đ...")
N    02:36  User:Mieran‎ (diff | hist) . . (+5,301)‎ . . Mieran (talk | contribs) (Created page with "'''Make Everything Easy With Blue Light Glasses''' Blue light can disrupt sleep and cause eye fatigue. It may also contribute to headaches, neck and shoulder pain. To combat...")
     00:43  Resources for mathematics competitions‎‎ (2 changes | history) . . (0)‎ . . [Deathhammer7‎ (2×)]
      00:43 (cur | prev) . . (-1)‎ . . Deathhammer7 (talk | contribs) (→‎Training Websites)
      00:42 (cur | prev) . . (+1)‎ . . Deathhammer7 (talk | contribs) (→‎Training Websites)

23 April 2024

N    23:54  2025 USAMO Problems‎ (diff | hist) . . (+45)‎ . . Mathkatanareal (talk | contribs) (Created page with "2025 USAMO doesn't exist yet! Come back soon!")
     22:50  1998 AIME Problems/Problem 1‎‎ (2 changes | history) . . (+966)‎ . . [Namelyorange‎ (2×)]
      22:50 (cur | prev) . . (+19)‎ . . Namelyorange (talk | contribs)
      22:48 (cur | prev) . . (+947)‎ . . Namelyorange (talk | contribs)
N    22:48  Power of a point theorem‎‎ (119 changes | history) . . (+5,356)‎ . . [Sawyerj09‎ (119×)]
      22:48 (cur | prev) . . (-1)‎ . . Sawyerj09 (talk | contribs) (→‎Proof)
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      22:46 (cur | prev) . . (-41)‎ . . Sawyerj09 (talk | contribs) (→‎STILL WORKING (PLEASE DON'T EDIT YET))
      22:45 (cur | prev) . . (+492)‎ . . Sawyerj09 (talk | contribs) (→‎Olympiad (USAJMO, USAMO, IMO))
      22:44 (cur | prev) . . (+613)‎ . . Sawyerj09 (talk | contribs) (→‎Olympiad (USAJMO, USAMO, IMO))
      22:42 (cur | prev) . . (+1)‎ . . Sawyerj09 (talk | contribs) (→‎Intermediate (AIME))
      22:41 (cur | prev) . . (+547)‎ . . Sawyerj09 (talk | contribs) (→‎Intermediate (AIME))
      22:40 (cur | prev) . . (-137)‎ . . Sawyerj09 (talk | contribs) (→‎Introductory (AMC 10, 12))
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      21:42 (cur | prev) . . (+100)‎ . . Sawyerj09 (talk | contribs) (→‎Theorem:)
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      18:03 (cur | prev) . . (0)‎ . . Sawyerj09 (talk | contribs) (→‎Case 1 (Inside the Circle):)
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      13:25 (cur | prev) . . (+52)‎ . . Sawyerj09 (talk | contribs) (→‎Case 2 (Outside the Circle):)
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      12:37 (cur | prev) . . (+9)‎ . . Sawyerj09 (talk | contribs)
N     12:35 (cur | prev) . . (+107)‎ . . Sawyerj09 (talk | contribs) (Power of a Point (Olympiad Geo))
     19:41  (Upload log)‎ . . [Car0t‎; Mtbv‎; Vvsss‎ (2×)]
      19:41 . . Car0t (talk | contribs) uploaded File:Screenshot 2024-04-23 at 7.38.42 PM.png ‎(um actually)
      16:11 . . Vvsss (talk | contribs) uploaded File:2024 AIME II 8.png ‎
      15:12 . . Vvsss (talk | contribs) uploaded File:2024 AIME II 10.png ‎
      03:21 . . Mtbv (talk | contribs) uploaded File:2024AIMEIIProblem10.png ‎
     18:41  Joining an ARML team‎ (diff | hist) . . (+138)‎ . . Imarul (talk | contribs) (→‎Nevada)
N    17:51  2005 iTest Problems/Problem 2‎ (diff | hist) . . (+34)‎ . . Scthecool (talk | contribs) (solution)
N    17:50  2005 iTest Problems/Problem 1‎‎ (2 changes | history) . . (+9)‎ . . [Scthecool‎ (2×)]
      17:50 (cur | prev) . . (-15)‎ . . Scthecool (talk | contribs)
N     17:50 (cur | prev) . . (+24)‎ . . Scthecool (talk | contribs) (Created page with "It's 5034 don't be sped")
     16:18  2024 AIME II Problems/Problem 8‎ (diff | hist) . . (+403)‎ . . Vvsss (talk | contribs) (→‎Solution 1)
     15:18  2024 AIME II Problems/Problem 10‎‎ (8 changes | history) . . (+2,658)‎ . . [Vvsss‎ (3×); Mtbv‎ (5×)]
      15:18 (cur | prev) . . (+1)‎ . . Vvsss (talk | contribs) (→‎Solution 6 (Close to Solution 3))
      15:16 (cur | prev) . . (+43)‎ . . Vvsss (talk | contribs) (→‎Solution 6 (Close to Solution 3))
      15:12 (cur | prev) . . (+459)‎ . . Vvsss (talk | contribs) (→‎Solution 5 (Trig))
      03:36 (cur | prev) . . (+78)‎ . . Mtbv (talk | contribs) (→‎Solution 5 (Trig))
      03:34 (cur | prev) . . (-8)‎ . . Mtbv (talk | contribs) (→‎Solution 5 (Trig))
      03:32 (cur | prev) . . (+7)‎ . . Mtbv (talk | contribs) (→‎Solution 5 (Trig))
      03:31 (cur | prev) . . (+1,476)‎ . . Mtbv (talk | contribs) (→‎Solution 5 (Trig))
      03:27 (cur | prev) . . (+602)‎ . . Mtbv (talk | contribs)
N    10:53  2005 iTest Problems‎ (diff | hist) . . (+25,155)‎ . . Clarkculus (talk | contribs) (Created page with "==Short Answer Section== ===Problem 1=== During the <math>2005</math> iTest, you will be introduced to Joe and Kathryn, two high school seniors. If <math>J</math> is the num...")
     10:14  List of United States middle school mathematics competitions‎‎ (2 changes | history) . . (+19)‎ . . [Actuarialfoundation‎ (2×)]
      10:14 (cur | prev) . . (+1)‎ . . Actuarialfoundation (talk | contribs) (→‎National middle school mathematics competitions)
      10:13 (cur | prev) . . (+18)‎ . . Actuarialfoundation (talk | contribs) (→‎National middle school mathematics competitions)
     09:56  2006 iTest‎‎ (2 changes | history) . . (+475)‎ . . [Clarkculus‎ (2×)]
      09:56 (cur | prev) . . (+24)‎ . . Clarkculus (talk | contribs) (→‎See Also)
      09:55 (cur | prev) . . (+451)‎ . . Clarkculus (talk | contribs) (→‎See Also)
N    09:40  2006 iTest Problems/Problem 35‎ (diff | hist) . . (+2,280)‎ . . Clarkculus (talk | contribs) (Created page with "===Problem 35=== Compute the <math>\textit{number}</math> of ordered quadruples <math>(w,x,y,z)</math> of complex numbers (not necessarily nonreal) such that the following sy...")
N    07:24  User:EdgarLong4‎ (diff | hist) . . (+47)‎ . . Edgarlong4 (talk | contribs) (Created page with "[https://okyali.com/ نظارات بيرسول]")
N    05:29  User:Rhykalald‎ (diff | hist) . . (+4,791)‎ . . Rhykalald (talk | contribs) (Created page with "'''How Mandatory Training Can Improve Knowledge About Care''' Mandatory training for healthcare professionals refers to any essential education their employer or law requires...")
     01:45  2023 AMC 12A Problems/Problem 14‎ (diff | hist) . . (+666)‎ . . Xhypotenuse (talk | contribs)
     00:44  Inradius‎‎ (2 changes | history) . . (0)‎ . . [Kirill09‎ (2×)]
      00:44 (cur | prev) . . (-3)‎ . . Kirill09 (talk | contribs) (→‎Problems)
      00:43 (cur | prev) . . (+3)‎ . . Kirill09 (talk | contribs) (→‎Problems)
     00:11  Linear‎ (diff | hist) . . (-1)‎ . . Ab godder (talk | contribs)

22 April 2024

     20:41  Connecticut Mathcounts‎ (diff | hist) . . (0)‎ . . Gp102 (talk | contribs) (→‎CT State Team Members (National Written Place, CD place if known))
     18:52  1966 AHSME Problems/Problem 31‎‎ (2 changes | history) . . (0)‎ . . [Shan3t‎ (2×)]
      18:52 (cur | prev) . . (0)‎ . . Shan3t (talk | contribs) (→‎See also)
      18:51 (cur | prev) . . (0)‎ . . Shan3t (talk | contribs) (→‎See also)
     18:41  2012 AMC 10A Problems/Problem 11‎ (diff | hist) . . (+91)‎ . . Leonidastheconquerer (talk | contribs) (→‎Video Solution by OmegaLearn)
     17:43  2024 AIME I Problems/Problem 5‎‎ (2 changes | history) . . (0)‎ . . [Billnyethescienceguy12345‎ (2×)]
      17:43 (cur | prev) . . (+7,145)‎ . . Billnyethescienceguy12345 (talk | contribs)
      17:42 (cur | prev) . . (-7,145)‎ . . Billnyethescienceguy12345 (talk | contribs) (Replaced content with "1+1=2") (Tag: Replaced)
     17:40  User:South‎ (diff | hist) . . (0)‎ . . Paixiao (talk | contribs) (→‎Visit Count)
     16:40  2020 AMC 12B Problems/Problem 13‎ (diff | hist) . . (-136)‎ . . Leonidastheconquerer (talk | contribs) (→‎Solution 2 (Change of Base Formula))
     16:07  2019 AMC 10A Problems‎ (diff | hist) . . (-8)‎ . . Iceburg2583 (talk | contribs) (→‎Problem 17)
N    13:25  User:Tuneodincom24‎ (diff | hist) . . (+765)‎ . . Tuneodincom24 (talk | contribs) (Created page with "Відкрийте для себе спокій та турботу в нашому "пансіонат для літніх людей". Це місце, де кожен де...")
     08:18  1973 USAMO Problems/Problem 4‎ (diff | hist) . . (+1)‎ . . Krishbstat (talk | contribs) (→‎Solution 3)
N    08:09  User:StevenCastillo6‎ (diff | hist) . . (+737)‎ . . Stevencastillo6 (talk | contribs) (Created page with "Окунитесь в мифологический мир с игровым автоматом от компании ragmatic Play. Этот захватывающий gates o...")
     03:46  2017 AMC 8 Problems/Problem 22‎ (diff | hist) . . (-23)‎ . . Flash61 (talk | contribs) (→‎Solution 1)
N    01:27  User:SaraFuller9‎ (diff | hist) . . (+672)‎ . . Sarafuller9 (talk | contribs) (Created page with "Если вы ищете что-то новенькое в мире онлайн-развлечений, обязательно попробуйте игру ракетка ht...")
     00:47  USAMO historical results‎‎ (5 changes | history) . . (+709)‎ . . [Imarch‎ (5×)]
      00:47 (cur | prev) . . (+10)‎ . . Imarch (talk | contribs) (→‎USAMO Gold Medals)
      00:43 (cur | prev) . . (+278)‎ . . Imarch (talk | contribs) (→‎USAMO Gold Medals)
      00:23 (cur | prev) . . (+35)‎ . . Imarch (talk | contribs) (→‎USAMO Honorable Mentions)
      00:22 (cur | prev) . . (+273)‎ . . Imarch (talk | contribs) (→‎USAMO Gold Medalists)
      00:13 (cur | prev) . . (+125)‎ . . Imarch (talk | contribs) (→‎USAMO Winners)
     00:30  Olympiad books‎ (diff | hist) . . (+75)‎ . . Missionjoshi25 (talk | contribs) (→‎Number Theory)

21 April 2024

     22:40  2010 AMC 8 Problems/Problem 16‎ (diff | hist) . . (-295)‎ . . Ronaldliunaing (talk | contribs) (→‎Solution 2)
     21:48  2000 AMC 12 Problems/Problem 11‎‎ (4 changes | history) . . (+335)‎ . . [Xana233‎; Cheetahlover‎ (3×)]
      21:48 (cur | prev) . . (+260)‎ . . Xana233 (talk | contribs) (→‎Solution 4)
      18:01 (cur | prev) . . (+3)‎ . . Cheetahlover (talk | contribs) (→‎Solution 3)
      18:01 (cur | prev) . . (+1)‎ . . Cheetahlover (talk | contribs) (→‎Solution 3)
      17:59 (cur | prev) . . (+71)‎ . . Cheetahlover (talk | contribs) (→‎Solution 3)
     19:27  1966 AHSME Problems/Problem 31‎ (diff | hist) . . (+1)‎ . . Shan3t (talk | contribs) (→‎Solution)
     16:17  Sharygin Olympiads, the best‎ (diff | hist) . . (-8)‎ . . Vvsss (talk | contribs) (→‎2024, Problem 20)
     16:11  2022 AMC 8 Problems/Problem 6‎ (diff | hist) . . (-565)‎ . . Scthecool (talk | contribs) (→‎Solution 3)
     13:34  2023 AMC 12B Problems/Problem 15‎‎ (6 changes | history) . . (-65)‎ . . [Xhypotenuse‎ (6×)]
      13:34 (cur | prev) . . (+6)‎ . . Xhypotenuse (talk | contribs)
      13:33 (cur | prev) . . (+25)‎ . . Xhypotenuse (talk | contribs)
      13:32 (cur | prev) . . (-5)‎ . . Xhypotenuse (talk | contribs)
      13:31 (cur | prev) . . (-74)‎ . . Xhypotenuse (talk | contribs)
      13:30 (cur | prev) . . (-21)‎ . . Xhypotenuse (talk | contribs)
      13:29 (cur | prev) . . (+4)‎ . . Xhypotenuse (talk | contribs)
     13:33  1995 AJHSME Problems/Problem 24‎ (diff | hist) . . (+11)‎ . . Brycemrsa (talk | contribs) (→‎Solution)
     13:29  2024 AMC 8 Problems/Problem 21‎ (diff | hist) . . (+78)‎ . . Robinthebest (talk | contribs) (→‎Solution 2)
     12:55  User:Cxsmi‎ (diff | hist) . . (+12)‎ . . Cxsmi (talk | contribs) (→‎Some Problems I Wrote)
     12:21  1977 AHSME Problems/Problem 29‎ (diff | hist) . . (-241)‎ . . Naturalselection (talk | contribs) (→‎Solution)
     11:56  1977 AHSME Problems/Problem 28‎ (diff | hist) . . (+58)‎ . . Naturalselection (talk | contribs) (→‎See also)
     11:33  2012 AMC 12B Problems/Problem 16‎ (diff | hist) . . (-21)‎ . . Leonidastheconquerer (talk | contribs) (→‎Video Solutions:)
     11:25  2012 AMC 10B Problems/Problem 23‎ (diff | hist) . . (-1)‎ . . Leonidastheconquerer (talk | contribs) (→‎Problem)
     11:19  2012 AMC 10B Problems/Problem 22‎ (diff | hist) . . (-1)‎ . . Leonidastheconquerer (talk | contribs) (→‎Problem)
N    10:48  User:Xsmb90‎ (diff | hist) . . (+2,550)‎ . . Xsmb90 (talk | contribs) (xsmb 90 ngay)
     06:30  2018 AIME I Problems/Problem 11‎ (diff | hist) . . (+2)‎ . . Amitwa.exe (talk | contribs) (→‎Problem)
N    04:43  User:Ketquamienbac30ngay‎ (diff | hist) . . (+3,135)‎ . . Ketquamienbac30ngay (talk | contribs) (Created page with "XSTD 30 ngày - Kết quả XSMB 30 ngày: là kết quả XSMB30 lượt quay số mở thưởng gần đây nhất của KQXSMB. XSMB 30 ngày - KQXSMB 30 ngày - Sổ kế...")
N    02:15  User:Sxmbcom90‎‎ (2 changes | history) . . (+3,228)‎ . . [Sxmbcom90‎ (2×)]
      02:15 (cur | prev) . . (+38)‎ . . Sxmbcom90 (talk | contribs)
N     02:14 (cur | prev) . . (+3,190)‎ . . Sxmbcom90 (talk | contribs) (Created page with "Tham khảo Kết Quả XSMB 90 Ngày Tại Website sxmb.com Trong thế giới của xổ số, việc theo dõi và phân tích kết quả là một phần không thể thi...")

20 April 2024

     23:54  2023 AMC 12A Problems/Problem 18‎ (diff | hist) . . (+99)‎ . . Pikapi (talk | contribs) (→‎See Also)
     22:41  2023 AMC 10B Problems/Problem 22‎‎ (4 changes | history) . . (+730)‎ . . [Athmyx‎ (4×)]
      22:41 (cur | prev) . . (-87)‎ . . Athmyx (talk | contribs) (→‎Solution 11 (Based on graph))
      12:54 (cur | prev) . . (+107)‎ . . Athmyx (talk | contribs) (→‎Solution 11 (Based on graph))
      12:51 (cur | prev) . . (+635)‎ . . Athmyx (talk | contribs)
      12:42 (cur | prev) . . (+75)‎ . . Athmyx (talk | contribs)
     22:05  1991 AHSME Problems/Problem 29‎ (diff | hist) . . (-3)‎ . . Naturalselection (talk | contribs) (→‎See also)
     19:59  2018 AMC 10A Problems/Problem 10‎ (diff | hist) . . (+8)‎ . . Kempu33334 (talk | contribs) (→‎Solution 10 (Solution 1 but alternate))
     15:02  2000 AIME I Problems/Problem 7‎ (diff | hist) . . (+4)‎ . . Datradllama (talk | contribs) (→‎Problem)
     14:12  2006 AIME II Problems/Problem 4‎ (diff | hist) . . (-3)‎ . . Scrabbler94 (talk | contribs) (Undo revision 215043 by Makemake (talk)) (Tag: Undo)
     12:41  (Upload log)‎ . . [Athmyx‎ (3×)]
      12:41 . . Athmyx (talk | contribs) uploaded File:2023AMC10BQ22Solution.jpg ‎(2023 AMC 10B Q22 Solution)
      12:18 . . Athmyx (talk | contribs) uploaded File:2016IMOQ1Solution.jpg ‎(2016 IMO Problem1 Solution)
      12:17 . . Athmyx (talk | contribs) uploaded File:2016IMOQ1.jpg ‎(2016 IMO Problem1)
     12:32  2016 IMO Problems/Problem 1‎‎ (5 changes | history) . . (+1,142)‎ . . [Athmyx‎ (5×)]
      12:32 (cur | prev) . . (-35)‎ . . Athmyx (talk | contribs) (→‎Solution)
      12:29 (cur | prev) . . (+1,122)‎ . . Athmyx (talk | contribs) (→‎Solution)
      12:21 (cur | prev) . . (-1)‎ . . Athmyx (talk | contribs) (→‎Problem)
      12:20 (cur | prev) . . (+7)‎ . . Athmyx (talk | contribs) (→‎Problem)
      12:20 (cur | prev) . . (+49)‎ . . Athmyx (talk | contribs)
     12:06  2024 AMC 8 Problems‎‎ (2 changes | history) . . (+1)‎ . . [Emreozturk‎ (2×)]
      12:06 (cur | prev) . . (-16)‎ . . Emreozturk (talk | contribs) (→‎Problem 4)
      12:05 (cur | prev) . . (+17)‎ . . Emreozturk (talk | contribs) (→‎Problem 4)
     12:02  2024 AMC 8 Problems/Problem 1‎‎ (4 changes | history) . . (+2)‎ . . [Emreozturk‎ (4×)]
      12:02 (cur | prev) . . (-8)‎ . . Emreozturk (talk | contribs) (→‎Problem 1)
      12:02 (cur | prev) . . (+8)‎ . . Emreozturk (talk | contribs) (→‎Problem 1)
      12:00 (cur | prev) . . (0)‎ . . Emreozturk (talk | contribs) (→‎Problem 1)
      12:00 (cur | prev) . . (+2)‎ . . Emreozturk (talk | contribs) (→‎Problem 1)
N    00:47  User:Slotqq889‎ (diff | hist) . . (+5,110)‎ . . Slotqq889 (talk | contribs) (Created page with "'''Bonus Menguntungkan Hanya Di QQ889''' - Memasang taruhan judi belakangan ini memang selalu menarik untuk dibicarakan. Ya, kini taruhan judi semakin mudah sekali dilakukan....")
     00:00  2022 AIME II Problems/Problem 13‎‎ (2 changes | history) . . (-3)‎ . . [L13832‎ (2×)]
      00:00 (cur | prev) . . (-1,187)‎ . . L13832 (talk | contribs) (→‎Solution 5)
      00:00 (cur | prev) . . (+1,184)‎ . . L13832 (talk | contribs) (→‎Solution 4 (Generating Function Bash))

19 April 2024

     23:49  Combinatorial identity‎‎ (5 changes | history) . . (+108)‎ . . [L13832‎ (5×)]
      23:49 (cur | prev) . . (-8)‎ . . L13832 (talk | contribs) (→‎Examples)
      23:48 (cur | prev) . . (+1)‎ . . L13832 (talk | contribs) (→‎Examples)
      23:47 (cur | prev) . . (+1)‎ . . L13832 (talk | contribs) (→‎Examples)
      23:46 (cur | prev) . . (0)‎ . . L13832 (talk | contribs) (→‎Examples)
      23:45 (cur | prev) . . (+114)‎ . . L13832 (talk | contribs) (→‎Examples)
N    23:07  User:Pokerokonlineru2024‎ (diff | hist) . . (+725)‎ . . Pokerokonlineru2024 (talk | contribs) (Created page with "Хотите окунуться в мир покера без хлопот и лишней суеты? Начни играть в покер легко с ПокерОК! Эт...")
     19:51  2007 AMC 10B Problems/Problem 8‎‎ (2 changes | history) . . (+536)‎ . . [Scrabbler94‎ (2×)]
      19:51 (cur | prev) . . (+80)‎ . . Scrabbler94 (talk | contribs)
      19:49 (cur | prev) . . (+456)‎ . . Scrabbler94 (talk | contribs)
N    19:47  Talk:2024 USAMO Problems‎ (diff | hist) . . (0)‎ . . Maxamc (talk | contribs) (Created blank page)
     19:29  Daniel Zhou's Profile‎ (diff | hist) . . (+88)‎ . . Danielzh (talk | contribs)
     18:40  List of United States middle school mathematics competitions‎‎ (2 changes | history) . . (+88)‎ . . [Actuarialfoundation‎ (2×)]
      18:40 (cur | prev) . . (-1)‎ . . Actuarialfoundation (talk | contribs) (→‎National middle school mathematics competitions)
      18:38 (cur | prev) . . (+89)‎ . . Actuarialfoundation (talk | contribs) (→‎National middle school mathematics competitions)
     16:30  Sharygin Olympiads, the best‎‎ (2 changes | history) . . (+4,098)‎ . . [Vvsss‎ (2×)]
      16:30 (cur | prev) . . (+213)‎ . . Vvsss (talk | contribs) (→‎2024, Problem 20)
      15:52 (cur | prev) . . (+3,885)‎ . . Vvsss (talk | contribs) (→‎2024, Problem 21)
     15:22  International Mathematical Talent Search‎ (diff | hist) . . (-15)‎ . . Kpedroza (talk | contribs) (Blanked the page) (Tag: Blanking)
     15:19 (Upload log) . . Vvsss (talk | contribs) uploaded File:2024 20.png ‎
     14:01  1994 IMO Problems‎‎ (2 changes | history) . . (+819)‎ . . [Soviet union1917‎ (2×)]
      14:01 (cur | prev) . . (+383)‎ . . Soviet union1917 (talk | contribs) (→‎Problem 6)
      14:00 (cur | prev) . . (+436)‎ . . Soviet union1917 (talk | contribs) (→‎Problem 5)
     12:50  2000 IMO Problems‎‎ (2 changes | history) . . (+1,605)‎ . . [Soviet union1917‎ (2×)]
      12:50 (cur | prev) . . (+1,605)‎ . . Soviet union1917 (talk | contribs) (→‎Problem 3)
      12:42 (cur | prev) . . (0)‎ . . Soviet union1917 (talk | contribs) (→‎DAY 1)
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