Update

chess.md

@@ -29,7 +29,7 @@ Chess as a game is not and cannot be [copyrighted](copyright.md), but **can ches
 
 ## Chess In General
 
-Chess evolved from ancient board games in India in about 6th century. Nowadays the game is internationally governed by **FIDE** which has taken the on role of an authority that defines the official rules: FIDE rules are considered to be the standard chess rules. FIDE also organizes tournaments, promotes the game and keeps a list of registered players whose performance it rates with so called Elo system --⁠ based on the performance it also grants titles such as **Grandmaster** (GM, strongest), **Internation Master** (IM, second strongest) or **Candidate Master** (CM). A game of chess is so interesting in itself that chess is usually not played for money like many other games ([poker](poker.md), [backgammon](backgammon.md), ...).
+Chess evolved from ancient board games in India (most notably Chaturanga) in about 6th century -- some sources say that in chess predecessor games dice was used to determine which man a player was allowed to move but that once dice were banned because of hazard games, we got the variant without any element of chance. Nowadays the game is internationally governed by **FIDE** which has taken the on role of an authority that defines the official rules: FIDE rules are considered to be the standard chess rules. FIDE also organizes tournaments, promotes the game and keeps a list of registered players whose performance it rates with so called Elo system --⁠ based on the performance it also grants titles such as **Grandmaster** (GM, strongest), **Internation Master** (IM, second strongest) or **Candidate Master** (CM). A game of chess is so interesting in itself that chess is usually not played for money like many other games ([poker](poker.md), [backgammon](backgammon.md), ...).
 
 The mastery of chess is often divided into two main areas (it is also common to divide strong players into these two categories depending on where their main strength lies):
 
@@ -219,8 +219,8 @@ Besides similar games such as [shogi](shogi.md) there are many variants of chess
 - **old chess**: The rules of chess itself have been changing over time (e.g. adding the 50 move rule etc.). The older rule sets can be seen as variants as well.
 - **puzzle**: For single player, chess positions are presented and the player has to find the best move or sequence of moves.
 - **racing kings**: The starting position has both players on the same side, the goal is to get one's king to the other side first.
-- **[non-Euclidean](non_euclidean.md)**: different geometries of the board, e.g. [hyperbolic](hyperbolic.md) or [spherical](spherical.md).
-- **3D chess**: [3D](3d.md) generalization of chess.
+- **different board geometries/topologies:** e.g. [non-Euclidean](non_euclidean.md) ([hyperbolic](hyperbolic.md), [spherical](spherical.md), [torus](torus.md), ...), hexagonal chess (had some considerable following) etc.
+- **3D chess**: [3D](3d.md) generalization of chess, possible are also other dimensions (4D, 5D, ... maybe even 1D?).
 - **randomly chosen variant**: Here a chess variant to be played is chosen at random before the game, e.g. by dice roll. { This is an idea I got, not sure if this exists or has a different name. ~drummyfish }
 
 ## Playing Tips
@@ -295,6 +295,7 @@ Chess is only mildly [bloated](bloat.md) but what if we try to unbloat it comple
 - [checkers](checkers.md)
 - [advance wars](advance_wars.md)
 - [backgammon](backgammon.md)
+- [Catan](catan.md)
 - [Deep Blue](deep_blue.md)
 - [stockfish](stockfish.md)
 - [anal bead](anal_bead.md)