Chess: The "Oh My God Trap"

Mikhail Tal vs. Josif Israel Zilber
Latvia Riga, 1954; 1-0

Chess Lesson:

If you are familiar with the "Oh my God chess trap" usually employed in a Giuoco Piano Opening, you will find it very amusing why Zilber tried this trick on Tal. One strategic principle in chess is "to never move the same piece twice during the opening".

In this game, we see Black moving the Knight twice (3.__Nd4) in a Ruy Lopez Opening as if thinking that Tal will capture the pawn on d5. After Tal captured the Knight, Black's d4 pawn immediately became a liability.

Tal vs. Zilber (after 28.a4; Black's Bishop is trapped)