Meanings
- uncountablevariantboard gamesThe conventional game and rules of chess.
In consequence, Italian domination of Progressive Chess was for many years comparable to that of Soviet domination of orthochess in times past.
2007, D. B. Pritchard, “Games using an ordinary board and men”, in The Classified Encyclopedia of Chess Variants, second edition, John Beasley, →ISBN, page 302 more examples
Problems of this sort have been exhaustively dealt with for orthochess (see A Guide to Fairy Chess, p. 39, for tables of results); Haas here presents 59 positions showing his best results for all possible moves, type A.
1974, Phillip Cohen, “Chessworld: Magazine Review”, in The Gamesletter, volume 13, number 1/2, Don Miller, page 10Avalanche chess is the same as orthochess, except that every move consists of two parts: (1) a normal legal chess move; and (2) pushing an opponent's pawn one square straight toward you. That's all there is to it really.
1992 June 29, Les Roselle, “What is a Nost?”, in Chess Life, volume 47, number 6, US Chess Federation, →ISBN
Origin
From ortho- + chess, probably as a clipping of orthodox chess.
Full word history & related roots →Cite this entry
orthochess. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/orthochess
“orthochess.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/orthochess. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “orthochess,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/orthochess.
Source: orthochess on Wiktionary, CC BY-SA 4.0.