Lichess puzzles, by ECO · Scott's blog

chess-spark-miner/openingPerfSpeedBigSet at master · bjedrzejewski/chess-spark-miner · GitHub

Alekhine's Defense: Mokele Mbembe Variation

Alekhine Defense: Krejcik Variation

icsbot/misc/eco.txt at master · seberg/icsbot · GitHub

Over The Horizons: Back To The Ice Age: Myers' Defense, PDF, Chess Openings

Opening Disasters in the Slav Defense! - D15 Slav Defense: Alekhine Variation

What is your opinion on the Modern Defence in chess? - Quora

What is the best defence against e4 in chess? - Quora

The Modernized Alekhine Defense - Thinkers Publishing

alekhine defense mokele mbembe variation white resign #chessrush #scandinavian #sicilian