Understanding soundness and motivations in chess puzzles, problems, and studies

What makes chess puzzles, problems, and endgame studies sound – or unsound? Why do some puzzles seem to contain “sub-optimal” moves by the opposing side? Is a problem or a study faulty if its thematic variation isn’t apparently “forced”? These sorts of questions are often raised, and it’s certainly important

Solutions to some two-mover chess problems by W T Pierce and J Pierce – The Grey Literature

Secrets of Spectacular Chess - Jonathan Levitt PDF, PDF, Chess

Expanded Understandings of the Connective Approach in Helping Students Construct Scientific Explanations - Deborah Goh, 2016

Part II - Good Thinking

Oxford Joel David Hamkins

Consecutive double-check records in problems

Logical Fallacies - FasterCapital

PDF) Modal logic and game theory: Two alternative approaches

My Experience at the Schein-Friedman/U.S. Chess School Camp

chess studies – Daily Chess Musings

PDF) EXPLAIN YOUR MOVE: UNDERSTANDING AGENT ACTIONS USING FOCUSED FEATURE SALIENCY