PuzzleWorld: A Benchmark for Multimodal, Open-Ended Reasoning in Puzzlehunts. - Hengzhi Li; Brendon Jiang; Alexander Naehu; Regan Song; Justin Zhang 010; Megan Tjandrasuwita; Chanakya Ekbote; Steven-Shine Chen; Adithya Balachandran; Wei Dai; Rebecca Chang; Paul Pu Liang (CoRR, 2025)