Relating to board games and dice

A game kit comprising:

• a game board that provides a rectangular field with first and second pairs of opposite sides, the game board further comprising a plurality of prismatic ridges that rise above the field and extend between the sides of the first pair of opposite sides in a series of adjacent prismatic ridges with the series extending between the sides of the second pair of opposite sides, each ridge has a first face that faces a first side of the second pair of opposite sides for facing a first player at the first side and second face that faces a second side of the second pair of opposite sides for facing a second player at the second side, the first and second faces of each ridge converging upwardly from the field and away from each other to an apex of the ridge that extends between the sides of the second pair of opposite sides whereby the first side is visible to the first player and less readily visible to the second player and the second side is visible to the second player and less readily visible to the first player and whereby, for each pair of adjacent ridges, the first face of one ridge of the pair meets with the second face of the other ridge of the pair along a trough or gutter between the ridges of the pair,
• wherein the ridges are visually divided into cells, the cells being arranged side by side, lengthwise along respective ridges to form rows of cells, and the cells of respective ridges being aligned to form columns of cells, a number of cells per column being equal to a number of cells per row, the columns and rows of cells forming a cell grid,
• wherein each cell extends over first and second faces of its respective ridge, such that each cell comprises a first cell face on the first face of the ridge and a second cell face on the second face of the ridge,
• wherein each of the cell faces comprises a two-digit grid co-ordinate in a numeral base, each two-digit grid co-ordinate forming a numeral with an integer value, the numerals being arranged in a sequence,
• wherein adding the numeral on a first cell face of a cell to the numeral on the corresponding second cell face of the cell results in a value equal to the number of cells per row or column squared minus one;
• and
• multiple playing pieces, each playing piece comprising a base which corresponds to the faces of the ridges,
• wherein the base of each playing piece comprises first and second downwardly facing faces which slope, on average, down and away from each other to cover the two opposite faces of a ridge of a cell on the board, and the playing pieces further comprising two upright outer walls rising from the two downwardly facing faces configured to avoid encroachment when two playing pieces are occupying two adjacent cells in two adjacent ridges.