@article{goldilocksrltuningtaskdifficultytoescape,
  title = {Goldilocks RL: Tuning Task Difficulty to Escape Sparse Rewards for Reasoning},
  author = {Ilia Mahrooghi and Aryo Lotfi and Emmanuel Abbe},
  year = {2026},
  eprint = {2602.14868},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2602.14868},
}