fork

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Across
  1. 4. one piece attacks two or more at the same time
  2. 5. Fork that doesn’t involve the enemy king
  3. 6. one move attacking two  targets
  4. 8. Fork involving both king and queen
Down
  1. 1. Fork that includes the enemy king
  2. 2. Piece famous for making forks by jumping
  3. 3. When a king, queen, and rooks are all forked
  4. 4. Knight fork attacking king, queen, and other pieces.
  5. 7. Fork that forces a move as the king is threatened