Impulschach

Impulschach: A Chess Variant of Chain Reactions
The goal is simple, but the path to victory is anything but.

The Goal
Win instantly by either:

1. Capturing the opponent's King.
2. Forcing an opponent's pawn onto your royal square (e1 for White, e8 for Black) using the Impulse's ability.

No Check, No Mate
Forget everything you know about check and checkmate. They don't exist here. There is also no castling and no en passant. You can simply capture the king if it's left undefended.

The Special Pieces
You start with the standard setup, but your Queen and both Knights are replaced.

The Impulse (I)

Movement: Moves and captures like a standard Queen.

Ability - Resonance Shift: After the Impulse moves, it immediately shifts all of your opponent's pawns.

Each pawn is shifted one square towards its promotion rank (straight or diagonally forward) onto an empty square. If no move is possible, it stays.

Pawns are processed by file, from left-to-right or right-to-left, your choice.

If an opponent's pawn reaches your first rank (1st for White, 8th for Black), it transforms into your piece based on its file: a-file/h-file -> Rook; b-file/g-file -> Catalyst; c-file/f-file -> Bishop; d-file -> Impulse; e-file -> YOU WIN INSTANTLY.

The Catalyst (C)

Movement: Moves and captures like a standard Knight.

Ability - Synchronization: After the Catalyst moves, if it attacks any of your own pieces (except another Catalyst), those pieces are activated.

You may then make one extra move with each activated piece, in any order you choose. If a piece has no legal move, it is skipped.

This can create powerful chains. For example, activating your Impulse allows you to move it and trigger its full Resonance Shift ability.

Notes
The Impulses cannot capture each other. This ensures the game's core mechanic remains active.

With two Catalysts, board awareness is crucial. Be careful not to block their "line of sight" to your own pieces with your other units!

This is a game of improvisation, not memorization. You must react to the ever-changing board state created by chain reactions.
More detailed about Impulschach here

Waiting for my friend (@King_Red_A) to join the game.
I hope this friendly game will show all the mechanics of Impulschach in action.