6...Bxd6
7.Qxd6, Nc6-b6
Event #87 Occupying multiple squares
Queens, rooks and bishops can stop between squares. They can move ½ square more/less with their normal movement. No capture can be made when stopping between squares and all adjacent squares must be unoccupied. Rooks can not be put between squares when castling.
A piece standing between 2 squares will occupy both those squares.
A piece standing between 4 squares will occupy all 4 squares.
A piece occupying several squares will be treated as if they were standing on all those squares. This means that the piece is blocking other pieces on those squares, can be captured on any of those squares and can move as if it was standing on any of those squares.
Note: A piece occupying multiple squares must be moved as if were standing on any of those squares. It cannot move "along the grid".
Notation: When moving between files, ".5" will be used. When moving between ranks, the letters for both ranks will be used. Example: Qab1.5 is the queen moving between files 1 and 2 and between the ranks a and b.
Example 1:
Whites rook is occupying both a1 and a2. Whites rook can move from any of those squares. The rook can NOT move to b1.5, since the rook can't reach there from either a1 or a2. A legal move, however is Ra7.5#
Whites rook is able to move from either a7 or a8. Black is checkmated.
Example 2:
White plays Bef3.5#
Whites bishop is able to move from either e3, e4, f3 or f4. Black is checkmated.
Example 3:
Whites bishop can be captured on any square it is occupying. Black plays Nxf4
Example 4:
Whites queen is occupying f3, f4, g3 and g4. Whites pawns on f2 and g2 are blocked and cannot move. Whites knight can not move to f3. Whites dark squared bishop can not move to f4, g5 or h6.
Special example:
In the position above, white plays Rd7.5. White can choose to bounce as if the white rook is standing on either d7 or d8 and as if blacks bishop is standing on either c8 or c7. White can not choose to bounce blacks bishop from b7 or b8, since those squares are not adjacent to whites rook.
So, after Rd7.5, the possible bounces are Bc8-b8, Bc7-b7 and Bc7-b6.
White plays Rd7.5, Bc8-b8#
never mind i see it
how do pieces get in between squares? also, does this mean that the bishops can change color?
Bishops can change color, yes. They can even stand on both colors at the same time.
Queens, rooks and bishops can move to locations between squares with their normal movement. They just need to move ½ square more/less in the direction their moving. No capturing when moving to locations between squares.
is it possible for a rook to stand on 4 squares at once? I don't see how
and is it possible for a bishop to stand on only 2 (not 4)?
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