411 REFERENCE · Wikibooks
Chess Opening Theory/1. e4/1...e5/2. Nf3/2...d6/3. d4/3...Nd7/4. Bc4/4...exd4/5. Nxd4/5...Be7/6. Bxf7
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Philidor Defence rd bd qd kd nd rd pd pd pd nd bd bl pd pd pd nl pl pl pl pl pl pl pl rl nl bl ql kl rl
6.Bxf7+!!
This move is a crushing sacrifice. Black loses his queen whether he accepts it or declines it.
Theory table
6 7 8Kxf7
Ne6Kxe6
Qd5+ Kf6
Qf5#1-0Kf8
Ne6+Kxf7
Nxd8+ +-