let's use our imagination one more time, and convert the number of fields white pieces move thru into the minutes ... the idea came to me while meditating on Horde and Maharaja Chess ... in both these games there should be utilized some kind of "timer"  to make these games more balanced ... "time" is usually undestood as the number of moves and for Maharaja they proposed 25 moves since the computer can always win with less than 25 moves ... in my "Time-out Chess" instead of conting the moves we count the number of fields white pieces move during the game and we call them minutes ... read on for details:

1. All the rules of traditional chess apply, with some modification.

2.  Black queen is out f the game (her square is empty)

3. White have 100 minutes (understood as 100 fields their pieces move across the board) to check-mate black ... if by the 100th minute white fail to check-mate black, game is lost for white and black wins the game.

4. Of course white and black can win by check-mating  at any time before the game ends by time-out.

5. White has time limitation, black material limitation ... this is a type of variants with unequal armies, but still, black's lack of queen is equalized by white's time restrictions ...

6. Examples: after the first white move, clock starts ticking for them (only for white) ... white starts with 100 minutes and, let's say. after the first move e2-e4 clock resets to 98 ... after the next white's move, for example Bf1-b5, clock resets to 94 minutes ...

7. Short and long castle cost 4 and 5 minutes respectively ...

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this type of game is a good way to learn how to manage our resources ... for black it may be a good school to learn playing defensively, for white to "watch your steps" economy ...  game is perfectly playable head-to-head ...

keep playing and inventing variants

Andy.