| Borders | State | % Correct |
|---|---|---|
| Kansas, Nebraska | Colorado | 100%
|
| Arkansas, Oklahoma | Texas | 100%
|
| Tennessee | Alabama | 93%
|
| Oklahoma | New Mexico | 93%
|
| Tennessee | North Carolina | 93%
|
| Kentucky | Ohio | 93%
|
| Tennessee | Georgia | 86%
|
| Kentucky, Illinois | Indiana | 86%
|
| Arkansas | Louisiana | 86%
|
| Iowa, Nebraska | South Dakota | 86%
|
| Kentucky, Tennessee | Virginia | 86%
|
| Kentucky | West Virginia | 86%
|
| Nebraska | Wyoming | 86%
|
| Iowa | Minnesota | 79%
|
| Arkansas, Tennessee | Mississippi | 79%
|
| Illinois, Iowa | Wisconsin | 79%
|