2 Win by playing a move on the middle of last rank.
3 The king has no royal status.
6 The goal for White (resp. Black) are the squares d8 and e8 (resp. d1 and
7 e1) in the middle of the opposing rank. The first player to settle a
8 piece there wins, even if it is attacked.
10 figure.diagram-container
12 | fen:2r5/p1p1b2p/1pbp4/5K2/P1PP4/1P6/4nPPP/3R1NR1 c3:
13 figcaption 1...Nc3 and 2...N(x)d1# wins for Black.
18 | This variant is mentioned
19 a(href="http://abrobecker.free.fr/chess/fairyblitz.htm#football")
21 | . It isn't specified if the winning piece needs to be safe from attacks.