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Browse the published Baltic Way contest archive. Use filters when you want to narrow it.

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  1. 2025 · Problem 1A · AlgebraVerified solution
  2. 2025 · Problem 2A · AlgebraVerified solution
  3. 2025 · Problem 3A · AlgebraVerified solution
  4. 2025 · Problem 4A · AlgebraVerified solution
  5. 2025 · Problem 5A · AlgebraVerified solution
  6. 2025 · Problem 6C · CombinatoricsVerified solution
  7. 2025 · Problem 7C · CombinatoricsVerified solution
  8. 2025 · Problem 8C · CombinatoricsVerified solution
  9. 2025 · Problem 9C · CombinatoricsVerified solution
  10. 2025 · Problem 10C · CombinatoricsVerified solution
  11. 2025 · Problem 11G · GeometryVerified solution
  12. 2025 · Problem 12G · GeometryVerified solution
  13. 2025 · Problem 13G · GeometryVerified solution
  14. 2025 · Problem 14G · GeometryVerified solution
  15. 2025 · Problem 15G · GeometryVerified solution
  16. 2025 · Problem 16N · Number TheoryVerified solution
  17. 2025 · Problem 17N · Number TheoryVerified solution
  18. 2025 · Problem 18N · Number TheoryVerified solution
  19. 2025 · Problem 19N · Number TheoryVerified solution
  20. 2025 · Problem 20N · Number TheoryVerified solution
  21. 2024 · Problem 1A · AlgebraVerified solution
  22. 2024 · Problem 2A · AlgebraVerified solution
  23. 2024 · Problem 3A · AlgebraVerified solution
  24. 2024 · Problem 4A · AlgebraVerified solution
  25. 2024 · Problem 5A · AlgebraVerified solution
  26. 2024 · Problem 6C · CombinatoricsVerified solution
  27. 2024 · Problem 7C · CombinatoricsVerified solution
  28. 2024 · Problem 8C · CombinatoricsVerified solution
  29. 2024 · Problem 9C · CombinatoricsVerified solution
  30. 2024 · Problem 10C · CombinatoricsVerified solution
  31. 2024 · Problem 11G · GeometryVerified solution
  32. 2024 · Problem 12G · GeometryVerified solution
  33. 2024 · Problem 13G · GeometryVerified solution
  34. 2024 · Problem 14G · GeometryVerified solution
  35. 2024 · Problem 15G · GeometryVerified solution
  36. 2024 · Problem 16N · Number TheoryVerified solution
  37. 2024 · Problem 17N · Number TheoryVerified solution
  38. 2024 · Problem 18N · Number TheoryVerified solution
  39. 2024 · Problem 19N · Number TheoryVerified solution
  40. 2024 · Problem 20N · Number TheoryVerified solution
  41. 2023 · Problem 1A · AlgebraVerified solution
  42. 2023 · Problem 2A · AlgebraVerified solution
  43. 2023 · Problem 3A · AlgebraVerified solution
  44. 2023 · Problem 4A · AlgebraVerified solution
  45. 2023 · Problem 5A · AlgebraVerified solution
  46. 2023 · Problem 6C · CombinatoricsVerified solution
  47. 2023 · Problem 7C · CombinatoricsVerified solution
  48. 2023 · Problem 8C · CombinatoricsVerified solution
  49. 2023 · Problem 9C · CombinatoricsVerified solution
  50. 2023 · Problem 10C · CombinatoricsVerified solution
  51. 2023 · Problem 11G · GeometryVerified solution
  52. 2023 · Problem 12G · GeometryVerified solution
  53. 2023 · Problem 13G · GeometryVerified solution
  54. 2023 · Problem 14G · GeometryVerified solution
  55. 2023 · Problem 15G · GeometryVerified solution
  56. 2023 · Problem 16N · Number TheoryVerified solution
  57. 2023 · Problem 17N · Number TheoryVerified solution
  58. 2023 · Problem 18N · Number TheoryVerified solution
  59. 2023 · Problem 19N · Number TheoryVerified solution
  60. 2023 · Problem 20N · Number TheoryVerified solution
  61. 2022 · Problem 1A · AlgebraNo verified solution
  62. 2022 · Problem 2A · AlgebraNo verified solution
  63. 2022 · Problem 3A · AlgebraNo verified solution
  64. 2022 · Problem 4A · AlgebraNo verified solution
  65. 2022 · Problem 5A · AlgebraNo verified solution
  66. 2022 · Problem 6C · CombinatoricsNo verified solution
  67. 2022 · Problem 7C · CombinatoricsNo verified solution
  68. 2022 · Problem 8C · CombinatoricsNo verified solution
  69. 2022 · Problem 9C · CombinatoricsNo verified solution
  70. 2022 · Problem 10C · CombinatoricsNo verified solution
  71. 2022 · Problem 11G · GeometryNo verified solution
  72. 2022 · Problem 12G · GeometryNo verified solution
  73. 2022 · Problem 13G · GeometryNo verified solution
  74. 2022 · Problem 14G · GeometryNo verified solution
  75. 2022 · Problem 15G · GeometryNo verified solution
  76. 2022 · Problem 16N · Number TheoryNo verified solution
  77. 2022 · Problem 17N · Number TheoryNo verified solution
  78. 2022 · Problem 18N · Number TheoryNo verified solution
  79. 2022 · Problem 19N · Number TheoryNo verified solution
  80. 2022 · Problem 20N · Number TheoryNo verified solution
  81. 2021 · Problem 1A · AlgebraVerified solution
  82. 2021 · Problem 2A · AlgebraVerified solution
  83. 2021 · Problem 3A · AlgebraVerified solution
  84. 2021 · Problem 4A · AlgebraVerified solution
  85. 2021 · Problem 5A · AlgebraVerified solution
  86. 2021 · Problem 6C · CombinatoricsVerified solution
  87. 2021 · Problem 7C · CombinatoricsVerified solution
  88. 2021 · Problem 8C · CombinatoricsVerified solution
  89. 2021 · Problem 9C · CombinatoricsVerified solution
  90. 2021 · Problem 10C · CombinatoricsVerified solution
  91. 2021 · Problem 11G · GeometryVerified solution
  92. 2021 · Problem 12G · GeometryVerified solution
  93. 2021 · Problem 13G · GeometryVerified solution
  94. 2021 · Problem 14G · GeometryVerified solution
  95. 2021 · Problem 15G · GeometryVerified solution
  96. 2021 · Problem 16N · Number TheoryVerified solution
  97. 2021 · Problem 17N · Number TheoryVerified solution
  98. 2021 · Problem 18N · Number TheoryVerified solution
  99. 2021 · Problem 19N · Number TheoryVerified solution
  100. 2021 · Problem 20N · Number TheoryVerified solution
  101. 2020 · Problem 1A · AlgebraVerified solution
  102. 2020 · Problem 2A · AlgebraVerified solution
  103. 2020 · Problem 3A · AlgebraVerified solution
  104. 2020 · Problem 4A · AlgebraVerified solution
  105. 2020 · Problem 5A · AlgebraVerified solution
  106. 2020 · Problem 6C · CombinatoricsVerified solution
  107. 2020 · Problem 7C · CombinatoricsVerified solution
  108. 2020 · Problem 8C · CombinatoricsVerified solution
  109. 2020 · Problem 9C · CombinatoricsVerified solution
  110. 2020 · Problem 10C · CombinatoricsVerified solution
  111. 2020 · Problem 11G · GeometryVerified solution
  112. 2020 · Problem 12G · GeometryVerified solution
  113. 2020 · Problem 13G · GeometryVerified solution
  114. 2020 · Problem 14G · GeometryVerified solution
  115. 2020 · Problem 15G · GeometryVerified solution
  116. 2020 · Problem 16N · Number TheoryVerified solution
  117. 2020 · Problem 17N · Number TheoryVerified solution
  118. 2020 · Problem 18N · Number TheoryVerified solution
  119. 2020 · Problem 19N · Number TheoryVerified solution
  120. 2020 · Problem 20N · Number TheoryVerified solution
  121. 2019 · Problem 1A · AlgebraVerified solution
  122. 2019 · Problem 2A · AlgebraVerified solution
  123. 2019 · Problem 3A · AlgebraVerified solution
  124. 2019 · Problem 4A · AlgebraVerified solution
  125. 2019 · Problem 5A · AlgebraVerified solution
  126. 2019 · Problem 6C · CombinatoricsNo verified solution
  127. 2019 · Problem 7C · CombinatoricsVerified solution
  128. 2019 · Problem 8C · CombinatoricsNo verified solution
  129. 2019 · Problem 9C · CombinatoricsVerified solution
  130. 2019 · Problem 10C · CombinatoricsNo verified solution
  131. 2019 · Problem 11G · GeometryVerified solution
  132. 2019 · Problem 12G · GeometryVerified solution
  133. 2019 · Problem 13G · GeometryVerified solution
  134. 2019 · Problem 14G · GeometryVerified solution
  135. 2019 · Problem 15G · GeometryNo verified solution
  136. 2019 · Problem 16N · Number TheoryNo verified solution
  137. 2019 · Problem 17N · Number TheoryNo verified solution
  138. 2019 · Problem 18N · Number TheoryNo verified solution
  139. 2019 · Problem 19N · Number TheoryVerified solution
  140. 2019 · Problem 20N · Number TheoryVerified solution
  141. 2018 · Problem 1A · AlgebraVerified solution
  142. 2018 · Problem 2A · AlgebraVerified solution
  143. 2018 · Problem 3A · AlgebraVerified solution
  144. 2018 · Problem 4A · AlgebraVerified solution
  145. 2018 · Problem 5A · AlgebraVerified solution
  146. 2018 · Problem 6C · CombinatoricsVerified solution
  147. 2018 · Problem 7C · CombinatoricsVerified solution
  148. 2018 · Problem 8C · CombinatoricsVerified solution
  149. 2018 · Problem 9C · CombinatoricsVerified solution
  150. 2018 · Problem 10C · CombinatoricsVerified solution
  151. 2018 · Problem 11G · GeometryVerified solution
  152. 2018 · Problem 12G · GeometryVerified solution
  153. 2018 · Problem 13G · GeometryVerified solution
  154. 2018 · Problem 14G · GeometryVerified solution
  155. 2018 · Problem 15G · GeometryVerified solution
  156. 2018 · Problem 16N · Number TheoryVerified solution
  157. 2018 · Problem 17N · Number TheoryVerified solution
  158. 2018 · Problem 18N · Number TheoryVerified solution
  159. 2018 · Problem 19N · Number TheoryVerified solution
  160. 2018 · Problem 20N · Number TheoryVerified solution
  161. 2017 · Problem 1A · AlgebraVerified solution
  162. 2017 · Problem 2A · AlgebraVerified solution
  163. 2017 · Problem 3A · AlgebraVerified solution
  164. 2017 · Problem 4A · AlgebraVerified solution
  165. 2017 · Problem 5A · AlgebraVerified solution
  166. 2017 · Problem 6C · CombinatoricsVerified solution
  167. 2017 · Problem 7C · CombinatoricsVerified solution
  168. 2017 · Problem 8C · CombinatoricsVerified solution
  169. 2017 · Problem 9C · CombinatoricsVerified solution
  170. 2017 · Problem 10C · CombinatoricsVerified solution
  171. 2017 · Problem 11G · GeometryVerified solution
  172. 2017 · Problem 12G · GeometryVerified solution
  173. 2017 · Problem 13G · GeometryVerified solution
  174. 2017 · Problem 14G · GeometryVerified solution
  175. 2017 · Problem 15G · GeometryVerified solution
  176. 2017 · Problem 16N · Number TheoryVerified solution
  177. 2017 · Problem 17N · Number TheoryVerified solution
  178. 2017 · Problem 18N · Number TheoryVerified solution
  179. 2017 · Problem 19N · Number TheoryVerified solution
  180. 2017 · Problem 20N · Number TheoryVerified solution
  181. 2010 · Problem 1A · AlgebraVerified solution
  182. 2010 · Problem 2A · AlgebraVerified solution
  183. 2010 · Problem 3A · AlgebraVerified solution
  184. 2010 · Problem 4A · AlgebraVerified solution
  185. 2010 · Problem 5A · AlgebraVerified solution
  186. 2010 · Problem 6C · CombinatoricsVerified solution
  187. 2010 · Problem 7C · CombinatoricsVerified solution
  188. 2010 · Problem 8C · CombinatoricsVerified solution
  189. 2010 · Problem 9C · CombinatoricsVerified solution
  190. 2010 · Problem 10C · CombinatoricsVerified solution
  191. 2010 · Problem 11G · GeometryVerified solution
  192. 2010 · Problem 12G · GeometryVerified solution
  193. 2010 · Problem 13G · GeometryVerified solution
  194. 2010 · Problem 14G · GeometryVerified solution
  195. 2010 · Problem 15G · GeometryVerified solution
  196. 2010 · Problem 16N · Number TheoryVerified solution
  197. 2010 · Problem 17N · Number TheoryVerified solution
  198. 2010 · Problem 18N · Number TheoryVerified solution
  199. 2010 · Problem 19N · Number TheoryVerified solution
  200. 2010 · Problem 20N · Number TheoryVerified solution
  201. 1998 · Problem 1N · Number TheoryVerified solution
  202. 1998 · Problem 2N · Number TheoryVerified solution
  203. 1998 · Problem 3N · Number TheoryVerified solution
  204. 1998 · Problem 4N · Number TheoryVerified solution
  205. 1998 · Problem 5N · Number TheoryVerified solution
  206. 1998 · Problem 6A · AlgebraVerified solution
  207. 1998 · Problem 7A · AlgebraVerified solution
  208. 1998 · Problem 8A · AlgebraVerified solution
  209. 1998 · Problem 9A · AlgebraVerified solution
  210. 1998 · Problem 10A · AlgebraVerified solution
  211. 1998 · Problem 11G · GeometryVerified solution
  212. 1998 · Problem 12G · GeometryVerified solution
  213. 1998 · Problem 13G · GeometryVerified solution
  214. 1998 · Problem 14G · GeometryVerified solution
  215. 1998 · Problem 15G · GeometryVerified solution
  216. 1998 · Problem 16C · CombinatoricsVerified solution
  217. 1998 · Problem 17C · CombinatoricsVerified solution
  218. 1998 · Problem 18C · CombinatoricsVerified solution
  219. 1998 · Problem 19C · CombinatoricsVerified solution
  220. 1998 · Problem 20C · CombinatoricsVerified solution
  221. 1997 · Problem 1A · AlgebraVerified solution
  222. 1997 · Problem 2A · AlgebraVerified solution
  223. 1997 · Problem 3A · AlgebraVerified solution
  224. 1997 · Problem 4A · AlgebraVerified solution
  225. 1997 · Problem 5A · AlgebraVerified solution
  226. 1997 · Problem 6N · Number TheoryVerified solution
  227. 1997 · Problem 7N · Number TheoryVerified solution
  228. 1997 · Problem 8N · Number TheoryVerified solution
  229. 1997 · Problem 9N · Number TheoryVerified solution
  230. 1997 · Problem 10N · Number TheoryVerified solution
  231. 1997 · Problem 11G · GeometryVerified solution
  232. 1997 · Problem 12G · GeometryVerified solution
  233. 1997 · Problem 13G · GeometryVerified solution
  234. 1997 · Problem 14G · GeometryVerified solution
  235. 1997 · Problem 15G · GeometryVerified solution
  236. 1997 · Problem 16C · CombinatoricsVerified solution
  237. 1997 · Problem 17C · CombinatoricsVerified solution
  238. 1997 · Problem 18C · CombinatoricsVerified solution
  239. 1997 · Problem 19C · CombinatoricsVerified solution
  240. 1997 · Problem 20C · CombinatoricsVerified solution
  241. 1996 · Problem 1G · GeometryVerified solution
  242. 1996 · Problem 2G · GeometryVerified solution
  243. 1996 · Problem 3G · GeometryVerified solution
  244. 1996 · Problem 4G · GeometryVerified solution
  245. 1996 · Problem 5G · GeometryVerified solution
  246. 1996 · Problem 6N · Number TheoryVerified solution
  247. 1996 · Problem 7N · Number TheoryVerified solution
  248. 1996 · Problem 8N · Number TheoryVerified solution
  249. 1996 · Problem 9N · Number TheoryVerified solution
  250. 1996 · Problem 10N · Number TheoryVerified solution
  251. 1996 · Problem 11A · AlgebraVerified solution
  252. 1996 · Problem 12A · AlgebraVerified solution
  253. 1996 · Problem 13A · AlgebraVerified solution
  254. 1996 · Problem 14A · AlgebraVerified solution
  255. 1996 · Problem 15A · AlgebraVerified solution
  256. 1996 · Problem 16C · CombinatoricsVerified solution
  257. 1996 · Problem 17C · CombinatoricsVerified solution
  258. 1996 · Problem 18C · CombinatoricsVerified solution
  259. 1996 · Problem 19C · CombinatoricsVerified solution
  260. 1996 · Problem 20C · CombinatoricsVerified solution
  261. 1995 · Problem 1N · Number TheoryVerified solution
  262. 1995 · Problem 2N · Number TheoryVerified solution
  263. 1995 · Problem 3N · Number TheoryVerified solution
  264. 1995 · Problem 4N · Number TheoryVerified solution
  265. 1995 · Problem 5N · Number TheoryVerified solution
  266. 1995 · Problem 6A · AlgebraVerified solution
  267. 1995 · Problem 7A · AlgebraVerified solution
  268. 1995 · Problem 8A · AlgebraVerified solution
  269. 1995 · Problem 9A · AlgebraVerified solution
  270. 1995 · Problem 10A · AlgebraVerified solution
  271. 1995 · Problem 11C · CombinatoricsVerified solution
  272. 1995 · Problem 12C · CombinatoricsVerified solution
  273. 1995 · Problem 13C · CombinatoricsVerified solution
  274. 1995 · Problem 14C · CombinatoricsVerified solution
  275. 1995 · Problem 15C · CombinatoricsVerified solution
  276. 1995 · Problem 16G · GeometryVerified solution
  277. 1995 · Problem 17G · GeometryVerified solution
  278. 1995 · Problem 18G · GeometryVerified solution
  279. 1995 · Problem 19G · GeometryVerified solution
  280. 1995 · Problem 20G · GeometryVerified solution
  281. 1994 · Problem 1A · AlgebraVerified solution
  282. 1994 · Problem 2A · AlgebraVerified solution
  283. 1994 · Problem 3A · AlgebraVerified solution
  284. 1994 · Problem 4A · AlgebraVerified solution
  285. 1994 · Problem 5A · AlgebraVerified solution
  286. 1994 · Problem 6N · Number TheoryVerified solution
  287. 1994 · Problem 7N · Number TheoryVerified solution
  288. 1994 · Problem 8N · Number TheoryVerified solution
  289. 1994 · Problem 9N · Number TheoryVerified solution
  290. 1994 · Problem 10N · Number TheoryVerified solution
  291. 1994 · Problem 11G · GeometryVerified solution
  292. 1994 · Problem 12G · GeometryVerified solution
  293. 1994 · Problem 13G · GeometryVerified solution
  294. 1994 · Problem 14G · GeometryVerified solution
  295. 1994 · Problem 15G · GeometryVerified solution
  296. 1994 · Problem 16C · CombinatoricsVerified solution
  297. 1994 · Problem 17C · CombinatoricsVerified solution
  298. 1994 · Problem 18C · CombinatoricsVerified solution
  299. 1994 · Problem 19C · CombinatoricsVerified solution
  300. 1994 · Problem 20C · CombinatoricsVerified solution
  301. 1993 · Problem 1N · Number TheoryVerified solution
  302. 1993 · Problem 2N · Number TheoryVerified solution
  303. 1993 · Problem 3N · Number TheoryVerified solution
  304. 1993 · Problem 4N · Number TheoryVerified solution
  305. 1993 · Problem 5N · Number TheoryVerified solution
  306. 1993 · Problem 6A · AlgebraVerified solution
  307. 1993 · Problem 7A · AlgebraVerified solution
  308. 1993 · Problem 8A · AlgebraVerified solution
  309. 1993 · Problem 9A · AlgebraVerified solution
  310. 1993 · Problem 10A · AlgebraVerified solution
  311. 1993 · Problem 11C · CombinatoricsVerified solution
  312. 1993 · Problem 12C · CombinatoricsVerified solution
  313. 1993 · Problem 13C · CombinatoricsVerified solution
  314. 1993 · Problem 14C · CombinatoricsVerified solution
  315. 1993 · Problem 15C · CombinatoricsVerified solution
  316. 1993 · Problem 16G · GeometryVerified solution
  317. 1993 · Problem 17G · GeometryVerified solution
  318. 1993 · Problem 18G · GeometryVerified solution
  319. 1993 · Problem 19G · GeometryVerified solution
  320. 1993 · Problem 20G · GeometryVerified solution
  321. 1992 · Problem 1N · Number TheoryVerified solution
  322. 1992 · Problem 2N · Number TheoryVerified solution
  323. 1992 · Problem 3N · Number TheoryVerified solution
  324. 1992 · Problem 4N · Number TheoryVerified solution
  325. 1992 · Problem 5N · Number TheoryVerified solution
  326. 1992 · Problem 6A · AlgebraVerified solution
  327. 1992 · Problem 7A · AlgebraVerified solution
  328. 1992 · Problem 8A · AlgebraVerified solution
  329. 1992 · Problem 9A · AlgebraVerified solution
  330. 1992 · Problem 10A · AlgebraVerified solution
  331. 1992 · Problem 11C · CombinatoricsVerified solution
  332. 1992 · Problem 12C · CombinatoricsVerified solution
  333. 1992 · Problem 13C · CombinatoricsVerified solution
  334. 1992 · Problem 14C · CombinatoricsVerified solution
  335. 1992 · Problem 15C · CombinatoricsVerified solution
  336. 1992 · Problem 16G · GeometryVerified solution
  337. 1992 · Problem 17G · GeometryVerified solution
  338. 1992 · Problem 18G · GeometryVerified solution
  339. 1992 · Problem 19G · GeometryVerified solution
  340. 1992 · Problem 20G · GeometryVerified solution
  341. 1991 · Problem 1N · Number TheoryVerified solution
  342. 1991 · Problem 2N · Number TheoryVerified solution
  343. 1991 · Problem 3C · CombinatoricsVerified solution
  344. 1991 · Problem 4A · AlgebraVerified solution
  345. 1991 · Problem 5A · AlgebraVerified solution
  346. 1991 · Problem 6A · AlgebraVerified solution
  347. 1991 · Problem 7G · GeometryVerified solution
  348. 1991 · Problem 8A · AlgebraVerified solution
  349. 1991 · Problem 9A · AlgebraVerified solution
  350. 1991 · Problem 10A · AlgebraVerified solution
  351. 1991 · Problem 11N · Number TheoryVerified solution
  352. 1991 · Problem 12C · CombinatoricsVerified solution
  353. 1991 · Problem 13C · CombinatoricsVerified solution
  354. 1991 · Problem 14C · CombinatoricsVerified solution
  355. 1991 · Problem 15C · CombinatoricsVerified solution
  356. 1991 · Problem 16G · GeometryVerified solution
  357. 1991 · Problem 17G · GeometryVerified solution
  358. 1991 · Problem 18G · GeometryVerified solution
  359. 1991 · Problem 19G · GeometryVerified solution
  360. 1991 · Problem 20G · GeometryVerified solution
  361. 1990 · Problem 1C · CombinatoricsVerified solution
  362. 1990 · Problem 2A · AlgebraVerified solution
  363. 1990 · Problem 3A · AlgebraVerified solution
  364. 1990 · Problem 4A · AlgebraVerified solution
  365. 1990 · Problem 5A · AlgebraVerified solution
  366. 1990 · Problem 6G · GeometryVerified solution
  367. 1990 · Problem 7G · GeometryVerified solution
  368. 1990 · Problem 8G · GeometryVerified solution
  369. 1990 · Problem 9G · GeometryVerified solution
  370. 1990 · Problem 10G · GeometryVerified solution
  371. 1990 · Problem 11A · AlgebraVerified solution
  372. 1990 · Problem 12N · Number TheoryVerified solution
  373. 1990 · Problem 13N · Number TheoryVerified solution
  374. 1990 · Problem 14N · Number TheoryVerified solution
  375. 1990 · Problem 15N · Number TheoryVerified solution
  376. 1990 · Problem 16C · CombinatoricsVerified solution
  377. 1990 · Problem 17C · CombinatoricsVerified solution
  378. 1990 · Problem 18C · CombinatoricsVerified solution
  379. 1990 · Problem 19C · CombinatoricsVerified solution

Shortlist

Readable shortlist-only problems kept separate from the contest archive.

50 problems