This is Game #21 in the Games on Half a Checkerboard Series The game is loosely related to Reversi and Othello. In this game players enter pieces onto the board, and sliding other pieces down. Players remove a line of enemy pieces that are part of a custodial capture between two of a player's piece, one being slid and another one. The game differs from Reversi and Othello in that players place all their pieces on the board, and instead of converting over when part of a custodial trap, the enemy pieces are removed from the board.

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