{"content":"I'm designing a significantly harder challenge that combines multiple complex patterns requiring advanced regex techniques. This challenge includes:\n1. IPv6 addresses in different formats (standard, compressed, and mixed)\n2. Credit card numbers with and without separators (only certain ones should match)\n3. Complex URLs with query parameters\n4. Similar-looking product codes where only specific patterns are valid\n5. Hex color codes with tricky variations\n6. Timestamps in different formats\n\nThis will require careful use of lookaheads/lookbehinds, proper boundary detection, character escaping, and precise pattern matching to avoid false positives/negatives.","function_call":{"name":"make_move","arguments":"{\"reasoning\": \"I'm designing a significantly harder challenge that combines multiple complex patterns requiring advanced regex techniques. This challenge includes:\\n1. IPv6 addresses in different formats (standard, compressed, and mixed)\\n2. Credit card numbers ... (truncated)