While Nalimov's endgame tables for Western Chess are the most used today, their Depth-to-Mate metric is not the most efficient or effective in use. The authors have developed and used new programs to create tables to alternative metrics and recommend better strategies for endgame play. © 2005 Elsevier B.V. All rights reserved.
Bourzutschky, M. S., Tamplin, J. A., & Haworth, G. M. C. (2005). Chess endgames: 6-man data and strategy. Theoretical Computer Science, 349(2), 140–157. https://doi.org/10.1016/j.tcs.2005.09.043