Commit | Line | Data |
---|---|---|
71ef1664 BA |
1 | p.boxed |
2 | | Columns 'a' and 'h' communicate. | |
3 | ||
4 | p. | |
5 | Column 'a' is now just to the right of column 'h': a pawn on h2 can | |
6 | take on a3, and a bishop on h3 can go to a4, and so on. | |
7 | ||
8 | p. | |
9 | This allows a single piece to give a double check. On the following diagram | |
10 | the bishop give check on b5 by two distinct paths: e2-d3-c4 and g2-h3-a4. | |
11 | Covering both attacking lines is impossible so the king has to move. | |
12 | ||
13 | figure.diagram-container | |
14 | .diagram.diag12 | |
15 | | fen:8/2p5/3n4/1k6/8/8/2PP4/5B1K: | |
16 | .diagram.diag22 | |
17 | | fen:4k3/2p5/8/8/7N/8/3P4/7K a2,b3,b5,a6,g2,f3,f5,g6: | |
18 | figcaption Left: double-check on b5. Right: possible knight moves from h4. | |
19 | ||
20 | h3 Source | |
21 | ||
22 | p | |
2c5d7b20 BA |
23 | a(href="https://www.chessvariants.com/boardrules.dir/cylindrical.html") |
24 | | Cylinder Chess | |
71ef1664 | 25 | | on chessvariants.com. |