Request access to the MARB answer key

This dataset is the answer key (the reference assembled STEP and the placement spec) for MARB task 1, M3-CRETE. It is gated to prevent inadvertent training-data contamination, not for secrecy or security: the data is openly licensed and access is granted for any legitimate use (grading runs, research). Access is logged. The public benchmark input (kits, brief, scoring spec) is in the open dataset and does not require this gate.

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Gated dataset
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