Methodology

Real packs and earlier picks.

Pack One builds eight-pick runs from 17Lands public archives. Each decision uses a different source draft and its original pool. Your answers do not rewrite another historical state.

All seven-win Premier finishes count.

7-0, 7-1 and 7-2 are trophies. Drafters also meet the established experience and quality standard: at least 100 prior games and the per-set high-quality cohort. Older archives without win-rate fields retain their documented rank qualification.

Model evidence supports partial credit.

The model learns from a broader qualified cohort, not only trophies, and excludes a puzzle’s source draft from its own grading evidence. Card preferences, pick position and earlier pool context inform support. Probability and score calibration are separate. The exact trophy pick always earns 100; alternatives receive at most 95.

Published corpus, fixed Daily.

Only Live eligible sets enter new games. Ingestion validates sources, trajectories, metadata, images, model evidence and accounting; an admin explicitly publishes a ready set. Older sets remain in the corpus. A generated Daily keeps its decisions and versions after later serving-status changes.

Cube’s missing opening packs.

The public Cube archive lacks complete first-pick packs. Its eight decisions therefore use Picks 2–9 with the actual first card visible. Missing packs are never invented.

Qualified Traditional trophies add variety.

Some 3-0 Traditional trophy drafts are also used when their picks meet Pack One’s publication requirements. Each published decision must pass trajectory, metadata, image and puzzle-quality checks. The scoring model remains trained on Premier draft data; Traditional drafts supply eligible puzzle decisions, not model-training evidence.

Provenance and limits.

Public 17Lands datasets are licensed under CC BY 4.0. Pack One adapts them into puzzles, statistics and model evidence. Metadata and images come from Scryfall. Archives are recorded samples, not every draft played, and model support is not proof of the best pick. See the Terms for full attribution and source-license information.