160 trigs - 40 pieces per side
160 in hexadecimal is A0
160 = 25 x 5, while 64 = 24 x 4
an ancient measure of area was a (square) pole = 30.25 sq.yds
and 160 x 30.25 = 4840 sq.yds = 1 Acre.
21 files a to u, only central 2 ranks (6 and 7) have all files
12 ranks 1 to 12, only central 7 files (h to n) have all ranks.
|King||Moves a single step to an adjacent trig that is free from enemy attack. The possible trigs for a King in the red cell are coloured light-blue in the diagram to the left.
Kings may also castle - a move in which the King swaps places with a Spire.
|Queen||See diagrams for Tower and for Ninja.||May move as either the Tower or as a Ninja.||red: k11
|Archbishop||See diagrams for Spire and for Bishop.||May move as either a Spire or a Bishop.||red: k10
|Tower||Moves in a series of steps through the edges or sides of a trig. May not leap over any blocking piece or pieces.||red: g11 o11
white: g2 o2
|Duke||Moves either as a Marquess (dark-blue trigs) or as a Guard (light-blue trigs).||red: f10 p10
white: f3 p3
|Spire||Moves in a series of steps away from the starting trig, alternating between joining edges and connecting points or vertices. May not leap over any blocking piece or pieces.||red: h12 n12
white: h1 n1
|Bishop||Moves in a series of steps in a straight line away from the starting trig using only connecting points or vertices. May not leap over any blocking piece or pieces. The Bishop is colour-bound.||red: h10 h11 n10 n11
white: h3 h2 n3 n2
|Marquess||May move as either a Viscount or as an Earl.||red: g10 o10
white: g3 03
|Champion||May make a single step across a joining edge; shown by a black dot. May leap 2 trigs along a Spire's path; shown by a white dot. May leap 2 trigs along a Bishop's path; shown by a red dot.||red: j11 l11
white: j2 l2
|Guard||Moves a single step to an adjacent trig (coloured light-blue in the diagram). This is the same as the King's move but without the "not-moving-into-check" restriction.||red: j12 l12
white: j1 l1
|Ninja||Makes a series of 2 trig leaps along a Spire's path. This piece is colour-bound and restricted in its reach to 26 trigs.||red: i11 m11 i12 m12
white: i1 m1 i2 m2
|Earl||Leaps 2 trigs: the first via a joining edge; the second via a connecting point or vertex.||red: l10 j10
white: l3 j3
|Viscount||Leaps 2 trigs: the first via a connecting point or vertex; the second via a joining edge.||red: i10 m10
white: i3 m3
|Pawn||A pawn on its starting rank (the left-most pawn in the diagram) may move without capturing one or two steps directly forward (shown by the black dots); or may capture forward one step via a point (shown by the white dots).Capture en passant is allowed.
Otherwise (see the right-most pawn in the diagram) a pawn may move one step forwards or sideways without capturing (shown by black crosses); or may capture forward one step via a point (shown by the white crosses).
Pawns promote on reaching the furthermost rank (12 for white; 1 for red).
|red: rank 9
white: rank 4
there are steppers - Guard, Pawn, King
there are crooked leapers (Knight-like) - Viscount, Earl, Marquess, Duke (compound Marquess + Guard)
there are straight leapers - Ninja (is also a rider), Champion (has also a stepper component)
there are also riders - Tower, Spire, Bishop, Ninja (is also a leaper)
and compounds - Duke, Archbishop, Queen.