{"content":"I'm creating an extremely difficult regex challenge that combines multiple complex pattern types with tricky edge cases. The challenge includes:\n1. Valid IPv6 addresses in different formats (compressed and uncompressed)\n2. Valid UUIDs with specific version requirements\n3. Credit card numbers with various formats and valid checksums\n4. Items that look similar to the targets but should be excluded\n5. Patterns requiring lookaheads/lookbehinds to match correctly\n\nThis will require handling different delimiter styles, optional components, special character escaping, and precise pattern matching to avoid false positives/negatives. The mixture of formats in a single regex challenge significantly increases difficulty.","function_call":{"name":"make_move","arguments":"{\"reasoning\": \"I'm creating an extremely difficult regex challenge that combines multiple complex pattern types with tricky edge cases. The challenge includes:\\n1. Valid IPv6 addresses in different formats (... (truncated)