| Problem Name | Online Judge | Year | Contest | Difficulty Level | |
|---|---|---|---|---|---|
| 1 | Passwords | UVA | 1 | ||
| 2 | Tree Summing | UVA | 1 | ||
| 3 | Don't Get Rooked | UVA | 1 | ||
| 4 | Expert Enough? | UVA | 1 | ||
| 5 | Dreamoon and WiFi | Codeforces | Codeforces Round #272 (Div. 2) | 1 | |
| 6 | 23 out of 5 | UVA | 1 | ||
| 7 | Making Jumps | SPOJ | 1 | ||
| 8 | The Hamming Distance Problem | UVA | 1 | ||
| 9 | 8 Queens Chess Problem | UVA | 1 | ||
| 10 | Prime Ring Problem | UVA | 1 | ||
| 11 | The House Of Santa Claus | UVA | 1 | ||
| 12 | Sum It Up | UVA | 1 | ||
| 13 | ABC Path | SPOJ | 1 | ||
| 14 | ALL IZZ WELL | SPOJ | 1 | ||
| 15 | Back to the 8-Queens | UVA | 1 | ||
| 16 | Lotto | UVA | 1 | ||
| 17 | The Sultan's Successors | UVA | 1 | ||
| 18 | At most twice | Live Archive | 2015 | Latin America | 1 |
| 19 | CD | UVA | 1 | ||
| 20 | Hanoi Tower Troubles Again! | UVA | 1 | ||
| 21 | Division | UVA | 1 | ||
| 22 | Vonny and her dominos | SPOJ | 2 | ||
| 23 | Another n-Queen Problem | UVA | 2 | ||
| 24 | Knights in FEN | UVA | 2 | ||
| 25 | A-Sequence | UVA | 2 | ||
| 26 | Dividing coins | Live Archive | 1996 | Europe - Northwestern | 3 |
| 27 | Digger Octaves | SPOJ | 3 | ||
| 28 | Winterim Backpacking Trip | UVA | 3 | ||
| 29 | Sum It Up | Live Archive | 1997 | North America - Mid-Central USA | 3 |
| 30 | Playing Boggle | UVA | 3 | ||
| 31 | Run, Run, Runaround Numbers | ZOJ | 3 | ||
| 32 | The Boggle Game | UVA | 3 | ||
| 33 | Garden of Eden | UVA | 3 | ||
| 34 | Monkeys in a Regular Forest | UVA | 3 | ||
| 35 | Word Index | Live Archive | 1995 | North America - East Central NA | 4 |
| 36 | The Sultan's Successors | Live Archive | 1991 | South Pacific | 4 |
| 37 | Prim | UVA | 5 | ||
| 38 | Hexagonal Puzzle | UVA | 6 | ||
| 39 | Graph Coloring | Codeforces | CROC 2016 - Final Round [Private, For Onsite Finalists Only] | 6 | |
| 40 | The Boggle Game | Live Archive | 1997 | North America - Pacific Northwest | 7 |
| 41 | This Means War! | UVA | 8 | ||
| 42 | Knight Moves | Live Archive | 2002 | North America - Southeast USA | 10 |