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# Chess in a Toroidal Board

This variant begins with the Cylindrical 8 x 14 Variant . Then, the a and h columns are glued together.

```	       Black
a   b   c   d   e   f   g   h
+---+---+---+---+---+---+---+---+
14| P | P | P | P | P | P | P | P | 0
+---+---+---+---+---+---+---+---+
13|   |   |   |   |   |   |   |   |-1        The 15th line is identical
+---+---+---+---+---+---+---+---+          to the 1st, in other words,
12|   |   |   |   |   |   |   |   |-2        the 9th line is the -5th.
+---+---+---+---+---+---+---+---+
11|   |   |   |   |   |   |   |   |-3        White's pawns in the 2nd line
+---+---+---+---+---+---+---+---+          or Black's pawns in the 9th
10|   |   |   |   |   |   |   |   |-4        (or -5th) move forward.
+---+---+---+---+---+---+---+---+
9| p | p | p | p | p | p | p | p |-5        White's pawns in the 0th
+---+---+---+---+---+---+---+---+          (14th) or Black's pawns in
8| r | n | b | q | k | b | n | r | 8        the 7th line move backwards.
+---+---+---+---+---+---+---+---+
7| p | p | p | p | p | p | p | p | 7        The a and h columns are
6|   |   |   |   |   |   |   |   | 6
+---+---+---+---+---+---+---+---+
5|   |   |   |   |   |   |   |   | 5
+---+---+---+---+---+---+---+---+
4|   |   |   |   |   |   |   |   | 4
+---+---+---+---+---+---+---+---+
3|   |   |   |   |   |   |   |   | 3
+---+---+---+---+---+---+---+---+
2| P | P | P | P | P | P | P | P | 2
+---+---+---+---+---+---+---+---+
1| R | N | B | Q | K | B | N | R | 1
+---+---+---+---+---+---+---+---+
a   b   c   d   e   f   g   h
White

```
All other rules (castling, en-passant, promotion, etc) apply - but notice that the board has no center, so castling doesn't give any extra protection to the King.

A sample game could be:

```1-   e4     e11
2-   c4     [attacking f7 with the Bishop and the Queen!]
```
Notice that a Bishop, in an empty board, controls half of the squares! Example: a Bishop initially at f1, moving along the f1-a6 diagonal, would keep going along h7-a14 (=a0), then along h1-a8, and so on.

This variant can lead to subvariants, or similar games:

• Cylindrical Chess, the base subvariant, where the a and h columns are separated.
• Klein Chess, if the glueing between the 11th/12th lines (or -3rd/-2nd) was done after a switching, so that a11 would glue to h12, etc.