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An interesting position

1 • Opabinia2401 •
  1. Chapter 1
  1. Opabinia2401

The "must knows" of antichess endgame

1 • Opabinia2401 •
  1. Rook vs. King
  2. Bishop vs. Knight
  3. Knight vs. Knight
  1. Opabinia2401

Traxler (against Fried liver)

1 • Opabinia2401 •
  1. How to get into the traxler
  2. Kxf2
  1. Opabinia2401

Underpromotion-based chess puzzle (stockfish can't solve this)

1 • Opabinia2401 •
  1. The puzzle
  2. The solution
  1. Opabinia2401

A Zugzwang puzzle I created

1 • Opabinia2401 •
  1. The puzzle
  1. Opabinia2401

Ninja's Atomic Opening

1 • Opabinia2401 •
  1. e4 Nc6: How to checkmate
  2. What to play against e4
  1. AcademicNinja99
  2. Opabinia2401