{"content":"This extra-challenging text combines multiple complex patterns (varied email formats, phone numbers in different styles, multiple date formats, hex colors, tricky IP addresses, special codes, unbalanced braces, etc.). It includes fake or nearly valid items to test advanced lookahead/lookbehind usage and negative checks. The user must come up with a single regex that captures all valid target items among many decoys, which should significantly challenge regex expertise.","function_call":{"name":"make_move","arguments":"{\n  \"reasoning\": \"This extra-challenging text combines multiple complex patterns (varied email formats, phone numbers in different styles, multiple date formats, hex colors, tricky IP addresses, special codes, unbalanced braces, etc.). It includes fake or nearly valid items to test advanced lookahead/lookbehind usage and negative checks. The user must come up with a single regex that captures all valid target items among many decoys, which should significa... (truncated)