The winning Connecticut Play4 numbers for August 21, 2005 were: night 0-1-5-1.
Sum is the digits added together (5+5+0 = 10). Root sum keeps adding until one digit is left (10 → 1+0 = 1) — many regular players track it in their notebooks. Odd/Even marks each digit O or E (5-5-0 = OOE). High/Low marks 0–4 as L and 5–9 as H (5-5-0 = HHL).
| Date | Draw | Numbers | Sum | Root |
|---|---|---|---|---|
| Aug 21, 2005 | Night | 0-1-5-1 | 7 | 7 |
| Aug 20, 2005 | Night | 3-2-4-9 | 18 | 9 |
| Aug 19, 2005 | Night | 6-8-6-5 | 25 | 7 |
| Aug 19, 2005 | Day | 0-8-5-8 | 21 | 3 |
| Aug 18, 2005 | Night | 4-6-0-6 | 16 | 7 |
| Aug 18, 2005 | Day | 1-9-3-1 | 14 | 5 |
| Aug 17, 2005 | Night | 2-0-7-3 | 12 | 3 |
| Aug 17, 2005 | Day | 3-5-9-8 | 25 | 7 |
| Aug 16, 2005 | Night | 9-1-1-0 | 11 | 2 |
| Aug 16, 2005 | Day | 1-9-2-5 | 17 | 8 |
| Aug 15, 2005 | Night | 1-4-3-9 | 17 | 8 |
| Aug 15, 2005 | Day | 5-0-4-9 | 18 | 9 |