411 REFERENCE · Wikibooks
Chess Opening Theory/1. e4/1...g6/2. d4/2...Nf6/3. e5/3...Nh5
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Modern Defence: Norwegian Defence B06 Modern Defence
3...Nh5
Black moves their f6 knight to safety from the e5 pawn. The most popular move is /4. Be2/, threatening to win a pawn with the sequence 5. Bxh5 gxh5 6. Qxh5.