Good games stay within, but at the outer edge, of the player's regime of competence. That is, they feel doable but challenging. This makes them pleasantly frustrating - a flow state for human beings.
| Game | Time | WPM | Accuracy |
|---|---|---|---|
| 700 | 2012-06-13 08:40:35 | 78.17 | 94% |
| 544 | 2012-06-07 01:58:16 | 80.05 | 93% |