| Phase | Challenge | Points | Limit | Start | Close | State |
|---|---|---|---|---|---|---|
| 1 | 50 levels | 2 | yes | 5 weeks ago | in 48 weeks | open |
| 2 | 20 levels | 10 | yes | 4 weeks ago | in 49 weeks | open |
| 3 | 10 levels (+ 25 efficiency bonus) | 25 | no | 3 weeks ago | in 50 weeks | open |
| 4 | 4 levels (+ 100 efficiency bonus) | 100 | no | 2 weeks ago | in 51 weeks | open |
| 5 | 1 level (+ 200 efficiency bonus) | 200 | no | a week ago | in 51 weeks | open |
Play the levels in a browser: level player — play through the currently available challenges by hand.
Download Challenge files: phase 1 · phase 2 · phase 3 · phase 4 · phase 5
Submit solutions: phase 1 · phase 2 · phase 3 · phase 4 · phase 5
View Results: overall standings · phase 1 · phase 2 · phase 3 · phase 4 · phase 5
Solutions may only be handed in while a phase is open. Points (base, plus a live efficiency-bonus preview for phases 3–5) are visible to everyone at any time; move sequences stay private until a phase closes. API usage: /docs.
Programmatic access without a browser: send
Authorization: Bearer <token> with each API request
(see GET /api/status, GET /api/team,
POST /api/solution).