p.boxed
  | Attacked pieces change color after each turn.
  | Goal is to change king's color.

p.
  More precisely, only pieces attacked by the moving unit are flipped.
  They change side, until the opponent in turn can attack them.
  There are no captures: only color changes.

p Castling is possible, and flips pieces attacked by the moving unit(s).

figure.diagram-container
  .diagram
    | fen:r1bqkbnr/ppPpPppp/2n5/3N4/8/8/PPPPPPPP/R1BQKBNR:
  figcaption After 1.Nc3 Nc6 2.Nd5: pawns on c7 and e7 change color.

h3 End of the game

p.
  The game ends when a king changes color,
  or when a side cannot make a move (stalemate, draw).

p.
  In the diagram position, 2...g6?? for example would allow 3.Nf6 which
  attacks the king and therefore ends the game.
  However black can defend with 2...Nb4 or 2...Nf6 which flips the d5 knight,
  or even 2...f6.

h3 Source

p
  a(href="https://www.chessvariants.com/difftaking.dir/benedict.html")
    | Benedict chess
  |  on chessvariants.com.

p Inventor: W. Dan Troyka (2002)