{"content":"I'm creating a significantly challenging regex challenge that includes multiple complex pattern types within a single text sample. This sample mixes advanced email patterns, phone numbers with optional extensions, dates in different formats with leap year edge cases, and an IPv6 address. Additionally, similar non-target items are interleaved to force careful pattern matching using advanced techniques like negative lookahead/lookbehind, optional groups, and precise alternations. This will force regex experts to construct a robust solution based on multiple complex alternations and careful boundary definitions.","function_call":{"name":"make_move","arguments":"{\"reasoning\": \"I'm creating a significantly challenging regex challenge that includes multiple complex pattern types within a single text sample. This sample mixes advanced email patterns, phone numbers with optional extensions, dates in different formats with leap year edge cases, and an IPv6 address. Additionally, ... (truncated)