{"content":"I'm creating an extremely difficult challenge requiring advanced regex knowledge with mixed patterns, nested lookbehinds/lookaheads, and edge cases that will challenge even regex experts.","function_call":{"name":"make_move","arguments":"{\"reasoning\":\"I'm creating an extremely difficult challenge requiring advanced regex knowledge with mixed patterns, nested lookbehinds/lookaheads, and edge cases that will challenge even regex experts.\",\"move\":{\"text\":\"Here are some tricky patterns to match: Emails: 'special+email@sub.example.co', 'test.email+alex@domain.co.in'; Dates: '2023/02/29', '29-Feb-2020', '31/06/2019'; IPv6 Addresses: '2001:0db8:85a3:0000:0000:8a2e:0370:7334', 'FE80::0202:B3FF:FE1E:8329'; Colors: 'rgb(255,0,255)', 'rgba(128, 0, 128, 0.5)', 'hsl(120, 100%, 50%)'; Nested expressions: '(a(b(c)))', '[({[hello]}])', '{{{{nested}}}}'; Odd patterns: '#notAColor', 'hello@world', 'a.b@c.'\",\"targetItems\":[\"special+email@sub.example.co\",\"test.email+alex@domain.... (truncated)