2 | Pieces only move forward,
3 | until they reach the last rank where they promote.
6 Knights and bishops must move strictly forward, as in Draughts game.
7 Rooks, queen and king can also move laterally, on the same rank.
8 Pawns move as usual and are promoted into bidirectional pawns,
9 able to move and capture both ways.
11 figure.diagram-container
13 | fen:1qnrkrbb/pppppp1p/1n4p1/8/3B1P2/8/PPPPP1PP/RBKQNR1N c5,b6,e5,f6,g7,h8:
15 | fen:1qnrkrbC/pppppp1p/1n4p1/8/5P2/8/PPPPP1PP/RBKQNR1N:
16 figcaption Before and after 1.Bxh8
18 p Promoted pieces appear in yellow (for white) and red (for black).
23 a(href="https://www.chessvariants.com/diffmove.dir/checkers.html")
25 | on chessvariants.com.
27 p Inventor: Hans Multhopp (1974)