Black and White

angelini chess puzzle

By Éric Angelini. A regular chess game reached this position after Black’s fifth move. Four pieces have moved. Which ones?

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All solutions require moves by White’s king knight, Black’s king rook, and both king rook pawns. One runs: 1. h3 h5 2. Nf3 h4 3. Nxh4 Rh7 4. Nf3 Rxh3 5. Ng1 Rh8 (Thanks, Éric.)