How can white justify the pawn sacrifice? : r/chess

The Evolution of Modern Chess Rules: Pawn Promotion

How to Sacrifice in Chess. Chess is a versatile game, with too…, by Preshit soni, Getting Into Chess

How Not to Play Chess by Eugene A. Znosko-Borovsky, eBook

The Complete Guide to Chess Strategies

Can someone explain this Grunfeld pawn sacrifice to me? I don't understand why it is the best move in the position nor how it would be found : r/chess

When is it ok to sacrifice the exchange in chess? - Quora

Books Archives - British Chess News

Like a Jewel

How to save a lost game