| 301. | Deux MO functional equation: MULTIPLICATIVE INVOLUTION BUT STILL NOT DONE?? | 56:44 | |
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| 302. | Sunblaze Chapter 2, second half | 56:43 | | Sunblaze
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| 303. | CodeForces 1698F: RETURN OF THE IOI | 56:22 | |
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| 304. | Cono Sur 2020/6: BLACK MAGIC BASIS for 4x4 sudoku grid!! | 56:01 | |
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| 305. | Getting carried in Among Us! 5W 0L Christmas stream party | 55:28 | | Among Us
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| 306. | USAMO 1997/6: another struggle with Farey fractions | 55:13 | |
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| 307. | Geo with ISOTOMIC CONJUGATE OF ORTHOCENTER?? | 54:47 | |
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| 308. | IMO Shortlist 2007 N4: NT v_2 EXPANSION FORTITUDE | 54:33 | |
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| 309. | USEMO Day 1 Review (#89) | 54:18 | Review | 89
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| 310. | Hanabi 5-suit gray competition | 54:15 | |
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| 311. | USAMO 2008 = 1895 TEXTBOOK PROBLEM?? (courtesy of djmathman) | 53:32 | |
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| 312. | Mitchell Lee's MIRACLE SUDOKU (two given digits!) | 53:23 | |
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| 313. | ARE TRAINS MATH?? Slacking off by playing a viewer-submitted game! | 52:47 | | I Wanna Be the Guy
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| 314. | IMO Shortlist 2007 N5: MASS ZSIGMONDY FE | 52:43 | |
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| 315. | China 2021/6: CHINA MONSTER FE ON POSITIVE INTEGERS | 52:31 | |
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| 316. | IberoAmerican 2021/3: NO COMPRENDO | 52:26 | |
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| 317. | Vietnam 2014 Team Training: GEOMETRY DARK ARTS | 51:46 | |
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| 318. | Level 2: hanab.live practice | 51:45 | |
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| 319. | CodeForces 1667C: COVERING A CHESSBOARD WITH HALF-QUEENS | 51:03 | |
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| 320. | KoMaL A776: BINOMIAL DOUBLE SUM (ft. generating functions) | 50:58 | |
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| 321. | [Review] USA TSTST 2020 Day 1 (ft. ducks) | 50:56 | Review |
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| 322. | AtCoder 286F: ARROWS PROBLEM ON IOI? | 50:49 | |
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| 323. | Shortlist 2013 C4: Partition manipulation | 50:22 | |
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| 324. | [Review] USEMO 2020 Day 1 | 50:18 | Review |
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| 325. | Recursed playthrough: DUNGEON | 49:55 | |
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| 326. | Iran TST 2019/15: PAPPUS INTO SYMMEDIAN RATIOS | 49:45 | |
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| 327. | The Golem: Building contraptions | 49:28 | | I Wanna Be the Guy
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| 328. | Exeter Math Club Competition: FAILING MIDDLE SCHOOL GEO | 49:22 | |
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| 329. | SL 2020 N5: v_p FE? | 49:19 | |
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| 330. | Sunblaze: Chapter 1 | 49:18 | | Sunblaze
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| 331. | Christmas Mock 2021/2: MULTIPLICATIVE SUBGROUPS BACK?? | 48:59 | |
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| 332. | USAMO 1996/5: TRIG IS PAIN | 48:54 | |
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| 333. | Ibero 2019/2: P(P(x)) = 0? | 48:37 | |
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| 334. | VECTOR FUNCTIONAL EQUATION (ft insider betting!) | 48:14 | |
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| 335. | IMO Shortlist 2006 C6: HOLEY TRIANGLES | 48:10 | |
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| 336. | TSTST 2013/4: TRIPLE SALMON THEOREM | 48:10 | |
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| 337. | USAMO 1997/3: SECOND TRY! | 48:08 | |
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| 338. | IMO 1993/6: NOT LINEAR ALGEBRA?? Deterministic binary operation | 48:02 | |
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| 339. | Mathematical Reflections J560: KVEDULA INEQU | 47:56 | |
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| 340. | IMO 1998/3: AD-HOC CONSTRUCTION | 47:40 | |
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| 341. | CodeForces 1673F: CATCH THE THIEF | 47:36 | |
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| 342. | XOOK 2: Quoting OWN PROBLEM?? | 47:30 | |
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| 343. | Iberoamerican 2022/2: BAITED BY DIGITS GAME | 47:06 | |
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| 344. | Recursed playthrough: SEWER | 46:34 | |
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| 345. | IMO Shortlist 2007 G8: MASS MONGE | 46:26 | |
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| 346. | Shortlist 2000 N6: "this looks easy let's just solve it quickly" | 45:54 | |
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| 347. | CodeForces 1823E: I HAVE TO IMPLEMENT SPRAGUE GRUNDY?? | 45:47 | |
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| 348. | HMMT Invitational 2015/5: ALGEBRAIC NUMBER THEORY!? | 45:47 | |
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| 349. | ToT 2010: ALL I SEE ARE ZEROES | 45:46 | |
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| 350. | Gandalf AI: WHAT'S THE PASSWORD? | 45:14 | |
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| 351. | [Review] USA TSTST 2020 Day 2 | 45:12 | Review |
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| 352. | OMMC Finals 2023/9: TRIPLE CIRCLE TANGENCY! | 45:07 | |
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| 353. | [Review] USA Team Selection Test for IMO 2021 | 45:01 | Review |
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| 354. | CodeForces 1567C: CARRYING CONUNDRUM | 44:51 | |
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| 355. | #sledders: o'er the hills we go crashing into trees | 44:38 | |
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| 356. | Korea Finals 2021/2: DEJA VU? | 44:00 | |
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| 357. | vEnhance meets STEPHEN'S SAUSAGE ROLL | 43:57 | | Stephen's Sausage Roll
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| 358. | [Review] NICE 2021: Day 1 | 43:40 | Review |
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| 359. | PUMaC 2015 C8: citing TWITCH LEMMA? official solution WRONG! (ft new year's facebook post) | 43:32 | |
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| 360. | ELMO 2010/3: RATE YOUR MIND PAL | 43:32 | |
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| 361. | Schweitzer 2020/1: COMPLETELY DIFFERENT SEQUENCES | 43:29 | |
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| 362. | Mexico 2019/6: 45-DEGREE ORTHOCENTER GEO | 43:17 | |
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| 363. | Shortlist 2008 N4: A GAZILLION FRACTIONS MODULO 2^n | 43:04 | |
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| 364. | MathCamp Revenge: FAKE GRAPH THEORY? | 42:56 | |
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| 365. | NACLO 2020/O: LINGUISTICS RETURN | 42:50 | |
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| 366. | Rioplatense 2019/2/3: NESTED SUBSCRIPTS APPEARING IN COMBO | 42:31 | |
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| 367. | Christmas AMO 2020/6: ERIC VS SQUID ft google translate narration | 42:23 | |
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| 368. | [Review] USA TSTST 2020 Day 3 | 42:20 | Review |
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| 369. | AAIME 2023/13: SYNTHETIC COORDINATE GEOMETRY? | 42:08 | |
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| 370. | determinant of matrix whose (i,j)th entry is gcd(i,j) | 42:04 | |
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| 371. | JMO 2024/5: EVERY STANDARD TECHNIQUE IN THE BOOK | 42:03 | |
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| 372. | Megumin's six numbers: USING PYTHON ON MATH OLYMPIAD?? | 41:16 | |
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| 373. | COSMIC EXPRESS: Vela playthrough (all solutions) | 40:43 | | Cosmic Express
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| 374. | [Review] USEMO 2020 Day 2 | 40:40 | Review |
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| 375. | IMO Shortlist 2008 C5: CYCLIC SHIFT OP | 40:30 | |
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| 376. | Taiwan TST 2019/2J/2: NOT MIXTILINEAR GEO | 39:54 | |
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| 377. | ELMO 2010/2: algebraic NT problem causes TWITCH CHAT ANARCHY!! | 39:50 | |
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| 378. | Ibero 2022/5: DELETE POINT M because why not | 39:38 | |
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| 379. | BRAID: Finale! | 39:32 | | Braid
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| 380. | Ukraine 2023/9.4: FRACTIONAL PART INEQUALITY (by Anton Trygub) | 39:12 | |
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| 381. | Shortlist 2007 N1: MOAR CASES | 39:08 | |
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| 382. | hanab.live practice (level 8): UNLUCKY BLACK DEAL | 38:45 | |
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| 383. | Mexico 2020/3: DANCE OF THE TURKEYS! | 38:43 | |
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| 384. | IMO Longlist 1967/SWE-5: CURSED PROBLEM | 37:54 | |
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| 385. | USAMTS 4/2/34: TOROIDAL GRID | 37:42 | |
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| 386. | USEMO 2021 Day 2 Solutions | 37:36 | |
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| 387. | CodeForces 1628C: IMPLEMENTING IMO 1999/3 IN CODE | 37:09 | |
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| 388. | IMC 2023/2: NON-COMMUTATIVE ALG MANIP! | 36:55 | |
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| 389. | Codeforces 4A/1339A/1770C: EVAN SOLVES HARDEST CODEFORCES PROBLEM? | 36:44 | |
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| 390. | Tournament of Towns 2012: sum of digits guessing game! | 36:42 | |
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| 391. | RMM Shortlist 2018 N1: f(0) strikes again! (ft Dirichlet) | 36:41 | |
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| 392. | IMO Shortlist 2009 C4: STAIRCASE โ MASS INDUCTION | 36:36 | |
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| 393. | Canada 2021/4: GCD FUNCTIONAL EQUATION | 36:35 | |
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| 394. | Tournament of Towns Fall 2015 Senior A-level: HEIGHT SWAP | 36:23 | |
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| 395. | AMSP Alg3.5 Inequality: SQUARING THREE TIMES "NOT THAT BAD" (ft more arithmetic demos!) | 35:51 | |
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| 396. | MODiscordServer 2019/2: SIX-DIGIT EXPANSION FORTITUDE | 35:35 | |
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| 397. | IMO Shortlist 2005 C1: LAMPS GRAPH THEORY | 34:43 | |
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| 398. | IMO Shortlist 2004 N1: MAGICAL TAU CONSTRUCTION | 34:37 | |
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| 399. | CMIMC 2017 by David Altizio | 34:25 | |
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| 400. | KoMaL A774: OK I COMPLEXED THE ENDING I'M SORRY | 34:08 | |
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