I came up with a new game rule idea called tag. The objective of the game is either to win by checkmate or keep the other player "it" for 5 turns (5 of their moves). I'll provide a more detailed explanation.
Rules: The beginning of the game is normal until the first capture. After the first capture, the player who's piece got captured is "it". Once a player is "it", they must tag the other player in the next 5 moves by capturing one of their pieces. If a player fails to capture one of the other player's piece after 5 moves, they are checkmate. Also, if a player tags the other player and then manages to capture another one of their pieces again (in the next 5 moves/before they become it), the countdown (5 moves) does not reset.
Technicalities: This game would play where "in order to checkmate, you must capture the king (or of course keep the other player "it" for 5 moves)", otherwise known as capture the king or regicide. Players also are not forced to capture on the fifth move (unlike how giveaway would force), rather, the game would end immediately after if they do not do this (similar to the bare piece rule). In addition, the amount of turns before checkmate from being it could be customized if somehow it got involved in a different map (i.e. the number could be 8 instead of 5). Note: In standard chess, it should be paired with the bare piece rule.
Strategy: Generally, try to avoid the first capture in a series of trade. If recapture is balanced, then you will be "it" in the end. Also, if you manage to keep an opponent "it" for 5 turns, you can move a piece out of the way (of your opponents capture choices) so that they may be "forced" to capture with a more valuable piece or in a way that messes up their position. If you are "it" your best choice may be to spend effort trying to trap a minor piece or build a pawn chain that will result in your opponent being "it". Or you could buy time with a trade.
Extra: In 3 or 4 player (or perhaps in 2 player also with a good position) there could be a 'no tagback' option so you cannot tag whoever tagged you, perhaps along with a timer before players can tagback.
I came up with a new game rule idea called tag. The objective of the game is either to win by checkmate or keep the other player "it" for 5 turns (5 of their moves). I'll provide a more detailed explanation.
Rules: The beginning of the game is normal until the first capture. After the first capture, the player who's piece got captured is "it". Once a player is "it", they must tag the other player in the next 5 moves by capturing one of their pieces. If a player fails to capture one of the other player's piece after 5 moves, they are checkmate. Also, if a player tags the other player and then manages to capture another one of their pieces again (in the next 5 moves/before they become it), the countdown (5 moves) does not reset.
Technicalities: This game would play where "in order to checkmate, you must capture the king (or of course keep the other player "it" for 5 moves)", otherwise known as capture the king or regicide. Players also are not forced to capture on the fifth move (unlike how giveaway would force), rather, the game would end immediately after if they do not do this (similar to the bare piece rule). In addition, the amount of turns before checkmate from being it could be customized if somehow it got involved in a different map (i.e. the number could be 8 instead of 5).
Note: In standard chess, it should be paired with the bare piece rule.
Strategy: Generally, try to avoid the first capture in a series of trade. If recapture is balanced, then you will be "it" in the end. Also, if you manage to keep an opponent "it" for 5 turns, you can move a piece out of the way (of your opponents capture choices) so that they may be "forced" to capture with a more valuable piece or in a way that messes up their position. If you are "it" your best choice may be to spend effort trying to trap a minor piece or build a pawn chain that will result in your opponent being "it". Or you could buy time with a trade.
Extra: In 3 or 4 player (or perhaps in 2 player also with a good position) there could be a 'no tagback' option so you cannot tag whoever tagged you, perhaps along with a timer before players can tagback.
I have an example game here:
https://www.chess.com/game/live/141229270357