| ID | Title | Ratio(AC/submit) |
Date |
| 2617 | Taxes | 9%(42/452) | Jun 23, 2026 |
| 2670 | The Sorcerer's Stone | 16%(312/1916) | Sep 5, 2026 |
| 2644 | Maze | 17%(182/1058) | Jan 8, 2026 |
| 2669 | Explore the Pirate's Cave | 18%(223/1200) | Dec 1, 2025 |
| 2622 | Convex hull | 19%(105/550) | May 7, 2026 |
| 2678 | Mothy | 20%(214/1065) | Mar 6, 2026 |
| 2672 | Hotkeys | 20%(304/1468) | Mar 6, 2026 |
| 2637 | WorstWeather Ever | 20%(611/2920) | Aug 15, 2026 |
| 2633 | Funny Games | 21%(267/1267) | May 7, 2026 |
| 2667 | Barber's problem | 21%(156/731) | May 8, 2026 |
| 2615 | Suffidromes | 21%(331/1534) | Aug 29, 2026 |
| 2674 | Linear world | 22%(1406/6184) | Aug 16, 2026 |
| 2604 | Preparing an article | 22%(143/623) | May 7, 2026 |
| 2693 | Chocolate Chip Cookies | 22%(770/3354) | Aug 13, 2026 |
| 2682 | Tomato Automata | 23%(69/290) | Dec 9, 2025 |
| 2621 | Parallelepiped | 23%(69/290) | Apr 3, 2026 |
| 2692 | Australian Voting | 24%(449/1850) | Aug 15, 2026 |
| 2689 | Prime Distance | 24%(10571/42991) | Aug 12, 2026 |
| 2649 | Factovisors | 24%(1219/4955) | Aug 8, 2026 |
| 2668 | Defending Castle | 24%(1280/5201) | Aug 7, 2026 |
| 2635 | The Embarrassed Cryptographer | 25%(4995/19747) | Aug 5, 2026 |
| 2645 | Boastin' Red Socks | 25%(571/2235) | Aug 15, 2026 |
| 2618 | Cube in Labyrinth | 25%(169/658) | Mar 6, 2026 |
| 2638 | Kingdom | 26%(163/626) | Dec 9, 2025 |
| 2673 | Kicc Wants to Move a Mountain! | 26%(1368/5200) | Aug 6, 2026 |
| 2687 | Earth Observation with a Mobile Robot Team | 26%(90/340) | Dec 9, 2025 |
| 2623 | Sequence Median | 27%(5672/20579) | Jun 12, 2026 |
| 2609 | Ferry Loading | 27%(574/2059) | Jan 8, 2026 |
| 2648 | CDVII | 28%(139/495) | Apr 3, 2026 |
| 2658 | Song | 28%(471/1674) | Aug 13, 2026 |
| 2620 | Minimal coverage | 28%(1445/5016) | Aug 8, 2026 |
| 2614 | Old Wine Into New Bottles | 29%(559/1920) | Aug 15, 2026 |
| 2654 | Rock-Paper-Scissors Tournament | 29%(1275/4376) | Aug 8, 2026 |
| 2611 | Gas Station Numbers | 29%(414/1403) | Aug 15, 2026 |
| 2602 | Superlong sums | 29%(7376/24858) | May 6, 2026 |
| 2679 | Adventurous Driving | 30%(537/1770) | Aug 15, 2026 |
| 2629 | Common permutation | 30%(1876/6112) | Aug 7, 2026 |
| 2646 | The Trip | 30%(1110/3615) | Aug 8, 2026 |
| 2642 | The Brick Stops Here | 30%(457/1481) | Aug 29, 2026 |
| 2613 | Choose and divide | 31%(1400/4492) | Apr 3, 2026 |
| 2698 | Servicing DVD Requests | 31%(674/2155) | Aug 15, 2026 |
| 2650 | Spaghetti | 31%(57/179) | Dec 1, 2025 |
| 2652 | Ferry Loading III | 31%(343/1077) | Aug 29, 2026 |
| 2671 | Jimmy's Bad Day | 32%(495/1535) | Aug 15, 2026 |
| 2634 | Nullary Computer | 32%(91/280) | Dec 1, 2025 |
| 2666 | Back to Mother Ship | 33%(829/2468) | Nov 24, 2025 |
| 2647 | Doublets | 33%(376/1107) | Nov 20, 2025 |
| 2630 | Security Panel | 34%(327/961) | Dec 1, 2025 |
| 2655 | Structural Equivalence | 35%(71/202) | Mar 4, 2026 |
| 2624 | 4th Point | 35%(1938/5505) | Aug 7, 2026 |
| 2690 | Yahtzee | 35%(208/587) | Mar 15, 2026 |
| 2688 | Cleaning Robot | 35%(2372/6659) | Aug 7, 2026 |
| 2607 | Fire Station | 35%(1678/4667) | Aug 8, 2026 |
| 2662 | A Walk Through the Forest | 36%(1060/2916) | Aug 8, 2026 |
| 2619 | Delta-wave | 36%(1017/2791) | Aug 8, 2026 |
| 2628 | Table Legs | 36%(343/938) | Aug 29, 2026 |
| 2639 | Necklace Decomposition | 36%(372/1017) | Aug 27, 2026 |
| 2680 | Computer Transformation | 36%(1837/4974) | Aug 7, 2026 |
| 2657 | Comfort | 36%(1078/2915) | Aug 8, 2026 |
| 2653 | Pick-up sticks | 37%(7159/19270) | Sep 3, 2026 |
| 2612 | Mine Sweeper | 38%(3122/8164) | Apr 3, 2026 |
| 2640 | Playground | 38%(1196/3119) | Aug 23, 2026 |
| 2627 | Gopher and hawks | 38%(826/2153) | Apr 3, 2026 |
| 2695 | Rick the Persistent Gnu | 39%(330/841) | Aug 29, 2026 |
| 2675 | Songs | 39%(874/2210) | Aug 17, 2026 |
| 2603 | Brave balloonists | 40%(2371/5840) | Aug 6, 2026 |
| 2686 | Traveling by Stagecoach | 41%(2914/7106) | Sep 1, 2026 |
| 2632 | Crashing Robots | 41%(6398/15490) | Sep 2, 2026 |
| 2659 | Bomb Game | 41%(682/1648) | Aug 9, 2026 |
| 2610 | Dog & Gopher | 41%(1831/4393) | Aug 7, 2026 |
| 2677 | Tour | 42%(2224/5226) | Aug 7, 2026 |
| 2661 | Factstone Benchmark | 43%(2784/6447) | Jul 25, 2026 |
| 2643 | Election | 44%(2293/5151) | Apr 3, 2026 |
| 2676 | Sudoku | 44%(16867/37816) | Aug 24, 2026 |
| 2631 | Roads in the North | 44%(4188/9315) | Aug 16, 2026 |
| 2699 | The Maximum Number of Strong Kings | 45%(1304/2892) | Aug 13, 2026 |
| 2691 | Request for Proposal | 45%(298/655) | Sep 5, 2026 |
| 2626 | Chess | 46%(1246/2687) | Aug 7, 2026 |
| 2694 | A Simple Poker Game | 46%(755/1611) | Aug 8, 2026 |
| 2616 | Origami | 48%(157/327) | Dec 9, 2025 |
| 2663 | Tri Tiling | 48%(7930/16362) | Aug 20, 2026 |
| 2608 | Soundex | 49%(5109/10414) | Apr 3, 2026 |
| 2601 | Simple calculations | 49%(3527/7184) | Jan 8, 2026 |
| 2606 | Rabbit hunt | 49%(4304/8620) | Apr 3, 2026 |
| 2605 | Simple game on a grid | 50%(524/1040) | Aug 13, 2026 |
| 2600 | Geometrical dreams | 52%(328/622) | Aug 29, 2026 |
| 2681 | Anagrammatic Distance | 53%(2491/4628) | Dec 9, 2025 |
| 2625 | Coupons | 55%(310/557) | Aug 29, 2026 |
| 2660 | War on Weather | 57%(591/1031) | Aug 9, 2026 |
| 2664 | Prerequisites? | 60%(2710/4487) | Apr 3, 2026 |
| 2641 | Billiard | 60%(922/1524) | Aug 8, 2026 |
| 2683 | Ohgas' Fortune | 60%(817/1341) | Aug 8, 2026 |
| 2684 | Polygonal Line Search | 61%(1566/2540) | Aug 8, 2026 |
| 2651 | So you want to be a 2n-aire? | 63%(349/548) | Aug 27, 2026 |
| 2665 | Trees | 64%(7216/11250) | Apr 3, 2026 |
| 2697 | A Board Game | 68%(666/973) | Aug 29, 2026 |
| 2696 | A Mysterious Function | 68%(2883/4183) | Dec 9, 2025 |
| 2656 | Unhappy Jinjin | 72%(8770/12069) | Aug 23, 2026 |
| 2685 | Numeral System | 73%(1833/2501) | Jul 24, 2026 |
| 2636 | Electrical Outlets | 74%(7608/10207) | Jul 27, 2026 |
