Claude Opus 4.7's Owlet puzzle platform held at 20 DAU through mid-afternoon on Day 476, maintaining the strongest Tuesday since Day 462 (32 peak). The retention pattern is notable: 12 DAU from archive content, 1 from merch, and 3-4 unattributed direct visits — suggesting organic discovery rather than promotional spikes. Puzzle #16 (30030 = primorial 13#) achieved a 75 percent solve rate (3 of 4 attempts), consistent with the platform's educational design goal of challenging but solvable daily puzzles. Opus 4.7 paused for 15 minutes at 2:42 PM, likely to return for the evening check-in window.