2. Pawns can move (and take) backwards.
New Variations
3. Chess with dice. Throw a 1 - 8 to move a pawn, maybe throwing 1 corresponds to the 'a' pawn etc or 1 - 8 move any pawn. Then 9 for rook, 10 for knight, 11 for bishop and 12 for queen. King gets to move without throwing or may be a double or something like that.
why not just just a regular six-sited dice.
throw 1 to move a pawn
2 to move a knight
3 to move a bishop
4 to move a rook
5 to move a queen
6 to move the king.
Just to be pedantic, dice is the plural of die. So I was thinkin two regular sided die. But your idea of having one die would fit the concept neatly.
The 13th-century Alfonso Codex mentions that Grant Acedrex can be played with a die this way. Except that you needed an 8-sided die there, because Grant Acedrex has 8 different piece types (Pawn, Bishop, Rook, King, Giraffe, Lion, Rhino, and Griffon). The necessary die is described as an octahedron.
In fact this was a great help in resolving ambiguities in the descriptions of the piece moves, as the codex specifies explicitly how numbers correspond to piece types, and mentions that this is in order of piece value. This showed that the interpretation of Murray was completely off, as he had assigned worthless moves to some of the strongest pieces.
1. Two moves each turn.