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Start with the full category, then apply the exact boundary: The six flights Vostok 1–6, from 1961 to 1963. Training-group membership alone is not enough. You only need one qualifying answer. A longer name is not automatically rarer.
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TitovGherman Titov · 75 points · 5 characters
Gherman Titov flew Vostok 2 in August 1961.
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Valery Bykovsky95 points · Shortest accepted spelling: Bykovsky
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- Apply the complete question boundary: The six flights Vostok 1–6, from 1961 to 1963. Training-group membership alone is not enough.
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Each entry belongs to the bounded set defined by the prompt. The named source supports the underlying facts; our editorial scoring is a separate layer.
Source: ESA · Timeline of early spaceflights ↗
Reference version: 2026-10-21. See our answer policy for how we handle aliases and omissions.