Who makes these puzzles?

It's all based off a super-computers evaluation, called Stockfish.

Problems & Studies ( Not Puzzles ) Are "Real" & Composed with "Motifs" in mind (In Books) but sure puzzles here are free & fine' ... many come from the games we all play here at Lichess @TLCarnage

I am going to sue Lichess if they steal my brilliancies.

@BurritoManInDisguise it was MY MOVE!!

@TLCarnage
Are you talking about this puzzle ? : lichess.org/training/QuE3w

1. Firstly, I want to point out that your moves shown in #1 are not correct because you play "Black" in this puzzle.
2. Secondly, please note that all puzzles start with a blunder (in this case Rxd2 (not Rxe7)) played by the computer.
3. Black`s best move now is Nb5 (not Ng4). This move threatens checkmate on c3. The attack on the pawn on d6 is not really important.
4. This is the reason why White has to play now Re3+. This move is not dumb. It is actually the only move which prevents the checkmate on c3.

This puzzle is actually pretty straight forward.

Puzzles start with a blunder by the opponent, and all blunders automatically are *mine*

@Bishop1964 said in #6:
>
My bad I did the puzzle like an hour before I posted and I let it stew and annoying me the result and position are still the same just mirrored. Furthermore you seem to missing the point which is a "puzzle"where your opponent just hangs everything doesn't really teach anything. Furthermore I would argue that these kind of puzzles are counter productive and could build bad habits. Granted the Nb5 sets up mate with Nc3# coming shortly but still..

It's the price you pay, to get unlimited puzzles, some of them are going to stink. That's AI for you. There is a downvote system for them though.

@guyza said in #9:
> It's the price you pay, to get unlimited puzzles, some of them are going to stink. That's AI for you. There is a downvote system for them though.
True that