{"content":"I'm creating an exceptionally difficult challenge that combines:\n1. Complex nested structures with varying depths and special characters\n2. Custom data formats with conflicting similarities\n3. Mathematical expressions with precise formats\n4. URLs with specific query parameters and fragments\n5. Mixed date-time formats with milliseconds and timezones\n6. Items requiring careful negative lookaheads to avoid false matches\n7. Patterns with tricky whitespace and optional components\n8. Similar-looking patterns that aren't actually matches\nEach target item requires precise matching to avoid capturing similar but invalid patterns in the text.","function_call":{"name":"make_move","arguments":"{\"reasoning\": \"I'm creating an exceptionally difficult challenge that combines:\\n1. Complex nested structures with varying depths and special characters\\n2. Custom data formats with conflicting similarities\\n3. Mathematical expressions with precise formats\\n4. URLs with specific q... (truncated)