Capture the Flag

The rules are the same as normal chess except for the following:

At the beginning of the game, a "flag" spawns on the e5 square that becomes attached to any piece that lands on it. If either player manages to hold the flag for 8 moves in a row, they win. If a player gets checkmated as they get their 8th move holding the flag in a row, they lose (checkmate has priority over flag win). If a piece holding the flag gets captured, the capturing piece starts carrying the flag.

Aditional rules:

Stalemate is decisive; the player holding the flag wins (This changes a lot of simple pawn endgames)

3-fold ends the game in a draw--if it occurs on the 8th move holding a flag in a row, it takes priority (similar to checkmate)

50-move rule is changed to 65 move rule and ends the game in a win for the player with the flag. This is so some drawish endgames (like R vs. R+B) still have good chances for the side pushing (yes, I realize the stalemate rule does the exact opposite, but it is very avoidable)

Insufficient Material is removed from the game

If either stalemate or the 50 move-rule somehow occur without either player taking the flag, its a draw

Credit to Domodo1 for inspiration

My suggestion: The flag will not affect the game result but will be added as a fraction (e.g. 1/4) to the final score

New variant (Capture the flag) Lichess study I'm making on some opening theory in this opening. So far it is very promising. (I haven't found anything close to a win for either side yet)

So if a player wins without the flag they would get 1-.25 or .75-.25? Also that feels way to close to standard chess to be a good variant in my opinion.

Possible score from the perspective of the player with the flag: W 1.25-0 D 0.75-0.5 L 0.25-1
Also capturing the flag by the king would be a guaranteed fraction of the point.

Interesting...the main problem with this is that it would more or less be played exactly like normal chess except d-pawn openings would become much more prominent (I think).

You can apply this rule to the games played and see how it would change the final score

In current chess with lots of draws, even a fraction of a point would make a big difference

sounds cool

By the way, the flag could be placed on any empty square of the board

How would I go in trying to implement this opening on chess.com?

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