Event = {Game with promoted variation.}
[start]                 -+<LONG
[1w]                    (1w) e4 (#hm=0)
[1b]                    (1b) d5 (#hm=0)
                         |
[1b-v0-start]            +---+
[1b-v0-1b]               |  (1b) c5 (#hm=0)
                         |
[1b-v1-start]            +---+
[1b-v1-1b]               |  (1b) e5 (#hm=0)
[1b-v1-2w]               |  (2w) Nf3 (#hm=1) {Used to be the main line}
                         |
[1b-v2-start]            +---+
[1b-v2-1b]               |  (1b) c6 (#hm=0)
                         |
[1b-v3-start]            +---+
[1b-v3-1b]               |  (1b) g6 (#hm=0)
                         |
[1b-v4-start]            +---+
[1b-v4-1b]               |  (1b) d6 (#hm=0)
[1b-v4-2w]               |  (2w) d4 (#hm=0) {Used to be a nested variation}
                         |
[2w]                    (2w) exd5 (#hm=0)
[2b]                    (2b) Qxd5 (#hm=0) {Used to be the variation at index 1}
+---+---+---+---+---+---+---+---+
| r | n | b |   | k | b | n | r |
+---+---+---+---+---+---+---+---+
| p | p | p |   | p | p | p | p |
+---+---+---+---+---+---+---+---+
|   |   |   |   |   |   |   |   |
+---+---+---+---+---+---+---+---+
|   |   |   | q |   |   |   |   |
+---+---+---+---+---+---+---+---+
|   |   |   |   |   |   |   |   |
+---+---+---+---+---+---+---+---+
|   |   |   |   |   |   |   |   |
+---+---+---+---+---+---+---+---+
| P | P | P | P |   | P | P | P |
+---+---+---+---+---+---+---+---+
| R | N | B | Q | K | B | N | R |
+---+---+---+---+---+---+---+---+
w KQkq -
{Line}{4 plies}