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(Well, you asked)

A somewhat odd try at might be 'Nordic-QQ Chess'. Pieces are placed on
the borders of spaces within a rank (RNBQKQBNR; PPPP_PPPP) and are
presumed to be virtual domino chessmen occupying two spaces on the rank.
Two friendly chessmen may share a space, but not from the same border;
opposing pieces may not share a space.

The units move by choosing either the left or right space and moving as in
standard chess -- they may move through a space 'occupied' by a single
friendly unit, but not through a space 'occupied' by two friendly units
or an opposing unit. To come to rest on a space, units must resume either
the right position (if they moved via the left) or the right position (if
they moved via the left).

Units occuping a side edge are hanging over the board and have only one
path available. Moving to a border occupied by an opposing unit or onto a
space (before reoccupying the border) shared by one or more opposing units
produces one or more captures.