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. Bxf7/6...Kf8
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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...Kf8
This move declines the sacrifice, but actually makes white's winning combination easier. The simple Ne6+ forks the king and queen.
Theory table
78Ne6+
Kxf7Nxd8+ +-