Projected separation of the main literature quasar pairs and Nāpōwawā‘enakaulua (this work) sorted by increasing mean redshift of the sample: E. Benítez et al. (2022), A. De Rosa et al. (2018), A. D. Goulding et al. (2019), J. D. Silverman et al. (2020), E. P. Farina et al. (2011), V. Junkkarinen et al. (2001), G. A. Shields et al. (2012), P. L. Schechter et al. (2017), I. Kayo & M. Oguri (2012), S. Tang et al. (2021), F. Mannucci et al. (2023), S. Eftekharzadeh et al. (2017), M. Scialpi et al. (2026, 2024), A. Ciurlo et al. (2023), J. F. Hennawi et al. (2006), E. Glikman et al. (2023), Y. Shen et al. (2023), Y.-C. Chen et al. (2023), A. More et al. (2016), Q. Wang et al. (2026), F. Mannucci et al. (2022), M. Perna et al. (2023, 2025), J. F. Hennawi et al. (2010), H. Suh et al. (2026), S. Zamora et al. (2025), M. Yue et al. (2023), S. G. Djorgovski et al. (2003), I. D. McGreer et al. (2016), M. Yue et al. (2021), Y. Matsuoka et al. (2024). The dashed, dashed–dotted, and dotted lines indicate constant angular separations of 1″, 3″, and 10″, respectively.