| 6871 | 4.3.4 Letter Game 字母游戏 | 未定级 | | | | | | | |
| 6873 | 4.4.1Shuttle Puzzle 棋盘游戏 | 未定级 | | | | | | | |
| 6874 | 4.4.2Pollutant Control 追查坏牛奶 | 未定级 | | | | | | | |
| 6875 | 4.4.3Frame Up 重叠的图像 | 未定级 | | | | | | | |
| 6876 | 5.1.1Fencing the Cows 圈奶牛 | 未定级 | | | | | | | |
| 6877 | 5.1.2Starry Night 夜空繁星 | 未定级 | | | | | | | |
| 6878 | 5.1.3Musical Themes 乐曲主题 | 未定级 | | | | | | | |
| 6879 | 5.2.1Snail Trails 蜗牛的旅行 | 未定级 | | | | | | | |
| 6880 | 5.2.2Electric Fences 电网 | 未定级 | | | | | | | |
| 6881 | 5.2.3Wisconsin Squares 威斯康星州的牧场 | 未定级 | | | | | | | |
| 6882 | 5.3.1Milk Measuring 量取牛奶 | 未定级 | | | | | | | |
| 6883 | 5.3.2Window Area 窗体面积 | 未定级 | | | | | | | |
| 6884 | 5.3.3Network of Schools 校园网 | 未定级 | | | | | | | |
| 6885 | 5.3.4Big Barn 巨大的牛棚 | 未定级 | | | | | | | |
| 6886 | 5.4.1All Latin Squares 拉丁正方形 一种正方形的数字编排 | 未定级 | | | | | | | |
| 6887 | 5.4.2Canada Tour 周游加拿大 | 未定级 | | | | | | | |
| 6888 | 5.4.3Character Recognition 字符识别 | 未定级 | | | | | | | |
| 6889 | 5.4.4Betsy's Tour 漫游小镇 | 未定级 | | | | | | | |
| 6890 | 5.4.5Telecowmunication 奶牛的电信 | 未定级 | | | | | | | |
| 6891 | 5.5.1 Picture 矩形周长 | 未定级 | | | | | | | |
| 6892 | 5.5.2 Hidden Password 隐藏口令 | 未定级 | | | | | | | |
| 6893 | 5.5.3 Two Five 二五语言 | 未定级 | | | | | | | |
| 6894 | 6.1.1 Postal Vans 邮政货车 | 未定级 | | | | | | | |
| 6895 | 6.1.2 A Rectangular Barn 矩形牛棚 | 未定级 | | | | | | | |
| 6896 | 6.1.3 Cow XOR 奶牛异或 | 未定级 | | | 前缀和字典树位运算 | | | | |
| 9201 | 骑马修栅栏 | 5级 | | | 图 | | | | |
| 9410 | 翻转棋 | 6级 | | | 状态压缩位运算 | | | | |