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Third attempt at the .tbm question. All three fixes from the previous page were applied and all three were needed: hold A for 0.5 s, confirm delivery from [RE-INPUT] rather than from the pad, and detect the screen change instead of timing it. Title at 288.6 s, both presses delivered on attempt 1, submenu at 303.4 s with 87.1 % of pixels changed. The capture is 99.7 % inked and uniform top to bottom -- a full-screen background. Our renderer gives 1.9-3.0 % for all 19 GP_SAVE_LOAD builds, 6.0-6.4 % for GP_TUTORIAL, 78.4 % for GP_SYSTEM 0/1. So two of the three archives render essentially nothing where the game draws a full screen. But WHICH screen was captured is not established, and the reason is worth more than the run: correlation cannot discriminate when the candidate renders are near-blank. All 19 GP_SAVE_LOAD builds score -0.004..-0.010 -- a ranking with no information. A matching statistic is useless against a hypothesis that predicts an empty image, which is exactly the hypothesis under test. Focus could not be read either: the two labelled menu captures fit at 2.52 and 2.48 mean absolute difference, 1.6 % apart. That is a SECOND statistic failing on the focus problem after the per-row brightness one, so it is an open item rather than an oversight. Kept regardless: the game surface sits at y=45 in the 1280x720 display frame, fitting the committed 1279x675 captures to 2.5 mean absolute difference. That is the alignment the earlier cross-geometry comparison got wrong. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Wuu56cE8vJGTBtn1ppsk8v
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