Let's invent some very weird pieces

The Viking.

Steps (or captures) one square in all 8 directions, or moves or captures like a knight.

1. While going orthogonally, he is not allowed to move to or capture on a square where he sees an enemy piece one orthogonal step away.

2. While going diagonally, he is not allowed to move to or capture on a square where he sees an enemy piece one diagonal step away.

3. While making a knight's move, he is not allowed to move to or capture on a square where he sees an enemy piece a knight's move away.

For example, the Viking on e4:

- cannot move to d4 because from there he would see the Knight on c4,

- cannot move to d3 or d5 because from there he would see the Knight on c4,

- cannot take the rook on f5 because from there he would see the Knight on g6,

- can take the bishop on f3 (but then would thereafter be taken by the rook),

- cannot jump to d6 because he would see two black pieces a knight's move away,

- can jump to c3, where it would be save and attack the Knight

If the King gets to be a piece, then so should the Throne.  Only the King can sit on it (share space with it) because it's a MEN'S room toilet and while he's on it he's immune to being checked by the Queen.  He can't move while on it though (except to castle cuz throne is his default position) and other pieces can't move around it except Rooks and only Bishops  can destroy it.

There should be a Wheelchair piece for the King as well, it makes him move like a Rook but he can only kill pawns and it can be destroyed by other pieces when vacant or stolen by the other King

And the King in Throne with a Rook can castle any which way, no matter how near or far, unlimited times.

I've always liked the idea of a shapeshifter piece, that turns into whatever piece (or pawn) it captured last. Some interesting tactics arise from it, such as trapping this piece with pawns, and if it takes one of the pawns, then it turns into a pawn and gets no further strong play.

Also, the twin pieces. For example, if there are two rooks on board, then each rook can also make knight's moves - but if one of the rooks is gone, then the other turns into a regular rook.

The mirror which copy's the opponents last piece move (if it's the king that moved it doesn't change)

If the opponents mirror was a knight, your mirror would change into a knight etc....

Mirror can't promote when it's a pawn....

 The counter:

It only captures diagonaly one space.

For white,the counter is transparent. They can also step on the counter if they want(see rules)

For black,it is not transparent. They can not go through the counter.

RULES

-If a piece is on the counter,the counter becomes "dead",it cannot capture unless the piece comes off.

-It can still be pinned.

-Since it is still transparent, a piece behind , in front etc can check/checkmate.

-If there is a piece on the counter and the opponents piece captures the counter and the piece on top of it, they both get captured.

-Counters are worth 2(so trading a knight for a counter is somewhat bad;depends.)

The bishops on 3rd and 6th rank are the counters

The avenger:

-moves like the king

-worth 2

-if captured,the piece that captured it gets captured automatically

-King can't capture it(it would be captured)

The

Bomber

-Moves like a rook

-If captures a piece, everything in a 3x3 square will be captured(including your own pieces)

-you can't try to capture you own piece unless your originally made contact with opponents piece.

-If the 3x3 square is with contact with the king's(including the opponents) it is illegal.

-If the opponents piece captures the Bomber it doesn't explode

-It is worth 9

-It is just like the rook except with "explosions"

-It can still check the king but it can't explode if near king

maybe bomber is too op lol

Freezer:

moves like a knight but can't jump of pieces.

All pieces that been captured with the freezer is unable to move until the your next turn

-Worth 3 like the knight

-It can't check if there is a piece in the way

ZlyphrrPlays, nice ideas. Very weird. Some ideas have been mentioned on this forum or occur in existing variants, like transparent pieces. Check out the Super Chess Joker and the Tenjiku Shogi Fire Demon as well, you'll like them.

The avenger is quite original, I guess. It could attack stronger pieces without support.

thank you

Of course you cannot independently specify how much it is worth; this follows from what it does. The Avenger should be worth significantly more than a Rook.

the bad luck pawn

-like a pawn but special rules

-if opponent can capture the bad luck pawn, they have to

-the king can also but if he is putting himself in check it is illegal.

-if it reaches end of the board,it promotes to a knight,bishop,rook or queen but it doesn't have the special ability.

-can be very tactical.

Checker pawn

-Like a pawn but special rules:

-Like a checker piece, it has to jump over the piece to capture ( only diagonnaly ) and can do it many times in 1 turn!

-If it reaches the end of the board you can promote to a queen,rook,bishop,knight with no special abilities.

It's actually closer to 4.

https://en.wikipedia.org/wiki/King_(chess)#Role_in_gameplay

Atomic Knight

-Like a knight but:

-When it jumps it makes a L like usaul but when it is it can capture what it is jumping over!

-If any king is in the way it is illegal

-It has to capture a piece when it land for the ability to work.

http://www.chessvariants.com/diffmove.dir/timetravel.html