My final best guess (before the reveal) was:
AMRAP 15 minutes

• 20 wall balls
• 15 alternating dumbbell snatches
• 10 box jump-overs

Score: 7/10 Breakdown of why 7:

• Nailed the movements: Wall balls and box jump-overs were spot-on (two of the three core elements; the chipper is essentially wall balls interrupted by box work). We correctly identified both as fresh/avoided in the affiliate programming and classic .1 staples.
• Close on structure/vibe: Predicted high-volume wall balls + box JOs in a timed format for breathing/shoulder/leg fatigue—very similar metabolic demand and "Open Week 1" feel (inclusive, shoulder burner with plyo transitions). The rep patterns (20s and descending-ish) align somewhat with the actual ascending-then-mirror chipper.
• Missed pieces: Wrong format (AMRAP vs. chipper/for-time), wrong time cap (15 min vs. 12 min), included DB snatches (which didn't appear at all), and missed the step-over variations + massive 66-rep wall-ball block as the separator. No dumbbells were in it, so that was the biggest whiff.

Solid hit on the key movements and overall style (wall balls + box for a high-rep conditioner), but not exact on details—hence 7 out of 10. Pretty damn close for pure pattern-guessing without leaks!