Problems from Northeast North America Regional 2013
| Submissions | Users | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Name | Total | Acc. | Ratio | Fastest | Total | Acc. | Ratio | Difficulty | ||
| DVDs | 3604 | 1622 | 45% | 0.04 | 1220 | 1014 | 83% | 3.2 | ||
| Palindromes in crosswords | 198 | 39 | 20% | 0.56 | 49 | 29 | 59% | 8.1 | ||
| Pegs | 18 | 7 | 39% | 0.16 | 10 | 6 | 60% | 7.2 | ||
| Pipes | 170 | 17 | 10% | 0.00 | 40 | 14 | 35% | 9.1 | ||
| Robot in a Maze | 401 | 159 | 40% | 0.27 | 133 | 111 | 83% | 5.8 | ||
| WordSpin | 354 | 113 | 32% | 0.06 | 110 | 83 | 75% | 5.4 | ||