Morphy-NN, Paris, 1858
White to move
Clue #1
Think #1 - Is my King safe?
1. Bc5+ - The only way to attack the white King. But Nxc5 is not a problem.
Think #2 - How to attack the black King ?
1. Rxh6+ - gxh6 is forced (then the Pawn in h6 is unprotected).
2. Qd2 (or Qe3) - Mate threat (Rxh6+ gxh6 Qxh6#) so Black team must defend on the King side (Bf8 or Kh7)
3. Qh5 - Same threat and forced moves for Black team.
...
Clue #2
Think #3 - Which black pieces are under fire?
1. Bd7 - Attacked once, defended once
2. c7 - Attacked once, defended once
3. g7 - Attacked once, defended twice
3. h6 - Attacked once, defended once
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