These chess endgame columns by Noam Elkies (the holder of the copyright and posted by his permission) originally appeared in both Chess Horizons and on the American Chess Journal website. The html version has been edited by Chris Chabris, with some minor changes by David Joyner. The original columns, in pdf and ps, are the “officially approved” versions and have not been edited.

1. Introduction
2. Perpetual Attack
3. Domination
4. Zugzwang (Part 1)
5. Zugzwang (Part 2)
6. Underpromotion, Part 1 (pdf)
7. Underpromotion, Part 2 (pdf)
8. White Minimals
9. Grigoriev (pdf)
10. Troitzky (pdf)
11. Castling (pdf)

This material was originally posted to http://www.permutationpuzzles.org/chess/Elkies/.