| #2401 | Pizza Party!NAQ 2021 | |
| #2402 | Stacking UpNAQ 2021 | |
| #2403 | Stamp CombinationsNAQ 2021 | |
| #2404 | Sword CountingNAQ 2021 | |
| #2405 | Tic-Tac StateNAQ 2021 | |
| #2406 | Venn IntervalsNAQ 2021 | |
| #2409 | 猜词WC 2022Interactive | |
| #2410 | Average RankNWERC 2019 | |
| #2411 | Balanced CutNWERC 2019 | |
| #2412 | Canvas LineNWERC 2019 | |
| #2413 | Disposable SwitchesNWERC 2019 | |
| #2414 | Expeditious CubingNWERC 2019 | |
| #2415 | Firetrucks Are RedNWERC 2019 | |
| #2416 | Gnoll HypothesisNWERC 2019 | |
| #2417 | Height ProfileNWERC 2019 | |
| #2418 | Inverted DeckNWERC 2019 | |
| #2419 | Jackdaws And CrowsNWERC 2019 | |
| #2420 | KitesurfingNWERC 2019 | |
| #2421 | A Difficult(y) ChoiceBaltic OI 2021Interactive | |
| #2422 | Inside informationBaltic OI 2021 | |
| #2423 | From Hacks to SnitchesBaltic OI 2021 | |
| #2424 | The short shank; RedemptionBaltic OI 2021 | |
| #2425 | The Collection GameBaltic OI 2021Interactive | |
| #2426 | The Xana coupBaltic OI 2021 | |
| #2427 | Catch the PlaneWorld Finals 2018 | |
| #2428 | Comma SprinklerWorld Finals 2018 | |
| #2429 | Conquer The WorldWorld Finals 2018 | |
| #2430 | Gem IslandWorld Finals 2018 | |
| #2431 | Getting a Jump on CrimeWorld Finals 2018 | |
| #2432 | Go with the FlowWorld Finals 2018 | |
| #2433 | Panda PreserveWorld Finals 2018 | |
| #2434 | Single Cut of FailureWorld Finals 2018 | |
| #2435 | TrianglesWorld Finals 2018 | |
| #2436 | Uncrossed Knight's TourWorld Finals 2018 | |
| #2437 | Wireless is the New FiberWorld Finals 2018 | |
| #2438 | Minimum Spanning TreesPetrozavodsk Summer 2019 Day 3 | |
| #2439 | Line GraphsPetrozavodsk Summer 2019 Day 3 | |
| #2440 | Valentine's DayPetrozavodsk Summer 2019 Day 3 | |
| #2441 | Play Games with RounddogPetrozavodsk Summer 2019 Day 3 | |
| #2442 | Welcome PartyPetrozavodsk Summer 2019 Day 3 | |
| #2443 | Dense SubgraphPetrozavodsk Summer 2019 Day 3 | |
| #2444 | Closest Pair of SegmentsPetrozavodsk Summer 2019 Day 3 | |
| #2445 | CoinsPetrozavodsk Summer 2019 Day 3 | |
| #2446 | Block BreakerPetrozavodsk Summer 2019 Day 3 | |
| #2447 | Domino CoveringPetrozavodsk Summer 2019 Day 3 | |
| #2448 | Make Rounddog HappyPetrozavodsk Summer 2019 Day 3 | |
| #2455 | Retribution!East Central NA Regional 2019 | |
| #2456 | Bio TripEast Central NA Regional 2019 | |
| #2457 | Cheese, If You PleaseEast Central NA Regional 2019 | |
| #2458 | Follow the Bouncing BallEast Central NA Regional 2019 | |
| #2459 | Just Passing ThroughEast Central NA Regional 2019 | |
| #2460 | Musical ChairsEast Central NA Regional 2019 | |
| #2461 | Out of SortsEast Central NA Regional 2019 | |
| #2462 | Remainder ReminderEast Central NA Regional 2019 | |
| #2463 | Square RoomsEast Central NA Regional 2019 | |
| #2464 | Taxed EditorEast Central NA Regional 2019 | |
| #2465 | Where Have You Bin?East Central NA Regional 2019 | |
| #2466 | AutićiCOCI 2021/2022 Contest #4 | |
| #2467 | AutobusCOCI 2021/2022 Contest #4 | |
| #2468 | IzboriCOCI 2021/2022 Contest #4 | |
| #2469 | ParkoviCOCI 2021/2022 Contest #4 | |
| #2470 | ŠarenlistCOCI 2021/2022 Contest #4 | |
| #2471 | Minimizing HaybalesUSACO 2022 January Platinum | |
| #2472 | Counting HaybalesUSACO 2022 January Platinum | |
| #2473 | Multiple Choice TestUSACO 2022 January Platinum | |
| #2474 | Art TransactionCERC 2020 | |
| #2475 | Bank RobberyCERC 2020Interactive | |
| #2476 | Pizzo CollectorsCERC 2020 | |
| #2477 | ExcavationCERC 2020 | |
| #2478 | Tobacco GrowingCERC 2020 | |
| #2479 | Rescue MissionCERC 2020 | |
| #2480 | OfficesCERC 2020 | |
| #2481 | PickpocketsCERC 2020 | |
| #2482 | Storage ProblemsCERC 2020 | |
| #2483 | Roof EscapeCERC 2020 | |
| #2484 | ScreamersCERC 2020 | |
| #2485 | AstrologyGP of Urals | |
| #2486 | Build the StringGP of Urals | |
| #2487 | Check the StringGP of Urals | |
| #2488 | Diophantine EquationGP of Urals | |
| #2489 | Emperor's PalaceGP of Urals | |
| #2490 | Five-pointed QueriesGP of Urals | |
| #2491 | Gas and MineralsGP of Urals | |
| #2492 | Hash FunctionGP of Urals | |
| #2493 | InfectionGP of Urals | |
| #2494 | Jumping PathGP of Urals | |
| #2495 | Knight's MoveGP of Urals | |
| #2496 | Laser BeamGP of Urals | |
| #2497 | Mirror BracketsGP of Urals | |
| #2498 | Just Long NecktiesJOI 2019/2020 | |
| #2499 | JJOOII 2JOI 2019/2020 | |
| #2500 | Collecting Stamps 3JOI 2019/2020 | |