Double Checkmate

Decision Chess may open up a rare and unique game over opportunity.

Given both players may attack while ignoring their own king at the same time, this allows for a double checkmate to occur.

This example shows that protecting the king is futile for either side. Both rooks are one move away from checkmating the opponent's king while also being blocked from protecting their own.

If the pawns blocking the rooks weren't there, they could rush to defend their own king.

Play the winning move and discover the double checkmate.

You may consider that both positions are in a sort of coupled pseudo anti-Zugzwang, where they are both incentivized to make the best possible move.

Where Zugzwang is a German word used to describe a situation wherein one player is put at a disadvantage because of their "compulsion to move".

For this position let's call it Dual "Zugpflicht", the latter is German for "obligation to move".

Zugpflicht indicates the moral obligation to move with freedom to do otherwise. The obligation here is to themselves and secondly the collective win-win outcome.

As a fun exercise consider what the fastest way to execute a double checkmate is if both sides try to coordinate this. If both players try to perform the standard 4-move scholar's mate simultaneously, it won't work, and there will be issues to circumvent.