[Event "Pseudo sacrifice d'un Pion"]
[Site "https://lichess.org/study/xOVSnWLR/plZErZKI"]
[Date "????.??.??"]
[Result "*"]
[Variant "From Position"]
[ECO "?"]
[Opening "?"]
[Annotator "https://lichess.org/@/michel_PR"]
[FEN "rnbr2k1/pp5p/3p2pn/2pPppN1/4P3/2NB3P/PPP2PP1/R3K2R w KQ - 0 1"]
[SetUp "1"]
[Source "https://lichess.org/study/xOVSnWLR/plZErZKI"]
[Orientation "white"]
1. f4! exf4 2. O-O Na6 3. Rxf4 { Les Blancs récupèrent le Pion avec gain de
temps } *