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Forced Draw! Did anyone discover this before?!

No. I deliver mate.

(I mean it takes 2s to spot it, right? Qg2 is a candidate as well.)

PS: interesting question whether 3 times repetition or not, move 6, 8, 10. First position with Qf2 white had castling rights, albeit theoretically. Resigning is certainly BS though.)

"PS: interesting question whether 3 times repetition or not, move 6, 8, 10. "
It is a draw. White on the moves writes Kd2 on his scoresheet and claims the draw as then the same position has repeated 3 times. Castling rights are irrelevant: it is white's moves 7, 9 and to be played 11.

In 7, 9, 11 certainly. But what about 6, 8, 10? This is not that easy: theoretically the right vs. practically the right vs. no right

According to FIDE handbook:

"Positions are considered the same if and only if the same player has the move, pieces of the same kind and colour occupy the same squares and the possible moves of all the pieces of both players are the same. Thus positions are not the same if:

1. at the start of the sequence a pawn could have been captured en passant.
2. a king or rook had castling rights, but forfeited these after moving. The castling rights are lost only after the king or rook is moved."

So no draw for 6, 8, 10.

Not sure how it's done for lichess - I would think it's the same (I'd guess it checks if the fen is the same but for the move number).

Well done for discovering a forced draw in a winning position! An amazing achievement indeed!

FIDE Laws of Chess:
"The game is drawn upon a correct claim by the player having the move, when the same position, for at least the third time (not necessarily by a repetition of moves): a. is about to appear, if he first writes his move on his scoresheet and declares to the arbiter his intention to make this move, or b. has just appeared, and the player claiming the draw has the move."

So it is no draw per b) because of the castling rights, but it is a draw per a).

Not "forced". They could go 6.Nf3 instead of Nc3.

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