Commit | Line | Data |
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87f40859 BA |
1 | p.boxed |
2 | | Pieces turn around the board, they cannot go in the middle. | |
3 | ||
4 | p. | |
5 | Each side has only a king, two rooks, one bishop and two pawns. | |
6 | Pieces can never enter the central area. | |
7 | Pawns can only move "clockwise", acording to the image below: they move | |
8 | and capture forward straight and diagonally in the arrow direction. | |
9 | ||
10 | figure | |
11 | img.img-center(src="/variants/Rollerball/rollerball_directions.gif") | |
12 | figcaption.text-center. | |
13 | Main directions on the board. | |
14 | The squares where direction changes are enlighted with white arrows. | |
15 | ||
16 | p. | |
17 | When a pawn reaches the starting square of an enemy pawn, it promotes | |
18 | into a bishop or rook. | |
19 | ||
20 | p. | |
21 | Rooks and bishop move as usual, but are restricted to one square only when | |
22 | moving counter-clockwise. | |
23 | Moreover, they are allowed one rebound in certain circumstances: | |
24 | ul | |
25 | li a bishop rebounds on the first wall met, | |
26 | li a rook rebounds (at 90 degrees) if it reaches a corner. | |
27 | ||
28 | figure | |
29 | img.img-center(src="/variants/Rollerball/rook_example.gif") | |
30 | figcaption.text-center Some rook movements. | |
31 | ||
32 | p. | |
33 | The king moves as in orthodox chess. | |
34 | The goal is either to bring your king on the initial square of the | |
35 | opponent's king, or to checkmate him. | |
36 | ||
37 | h3 More information | |
38 | ||
39 | p | |
40 | | See the | |
41 | a(href="http://history.chess.free.fr/rollerball.htm") author's presentation | |
42 | | , and the | |
43 | a(href="https://www.chessvariants.com/40.dir/rollerball/index.html") | |
44 | | chessvariants page | |
45 | | . | |
46 | ||
47 | p Inventor: Jean-Louis Cazaux (1998) |