Blunder Watch

This position is very tense, but relatively equal. Can you capitalize on a mistake to get a winning advantage?
Click the lightbulb twice to see white's first move, and then capitalize on Black's blunder

Black used two ideas to counter the Queen mate threat. Attack the opponent Queen or King. A third option is to trade-off pieces to hasten the endgame in an equal position. Rc1 pins the White Rook to the King preventing it taking the f6 Knight. Perhaps forcing a trade.

Click the lightbulb twice to see White's first move followed by the blunder. Find a brilliant move and then continue winning material for 13 moves.

Click the lightbulb twice to see White's first move followed by the blunder. Then continue to checkmate in 6 moves.

After White's first move Black doesn't have too many options but its first move to offer trade of Bishops is a weak move. Not a blunder but allows White to find a quicker mate in 7 moves. Click the lightbulb twice to see White's first move.

Based on Henrique Mecking vs Antonio Cavilhas Rocha 1-0
Mar del Plata Zonal (1969), Mar del Plata ARG, rd 17, Apr-09

Click the lightbulb twice to see White's first move followed by the blunder. Then continue to checkmate.

Based on Dommaraju Gukesh vs Ian Nepomniachtchi 1-0
WR Chess Masters (2023) (rapid), Dusseldorf GER, rd 3, Feb-25

In the game, Nepo resigned since he couldn't stop White promoting the b-pawn to a Queen. However, the puzzle continues the game for 19 moves. Continue the game and promote both b-pawns to Queens and capture all of Black's pieces and pawns. Look for forks. Black's Rook will not check the White King as it's totally futile. It only prolongs the game unnecessarily so I omitted any checking moves by the Black Rook.

Click the lightbulb twice to see White's first move followed by the blunder. 

Click the lightbulb twice to see Black's first move followed by the blunder. Solve in 6 moves.

Click the lightbulb twice to see White's's first move followed by the blunder. Solve in 4 moves.

The position is slightly in white's favor, but a slight mistep seals black's fate. Use the lightbulb (or find) white's first move. Can you prove that you know the way forward?
There IS a dual. at one point in the puzzle in that case, around move 23. I unfortunately couldn't remove it, but this was too cool of a position to not show. IN THAT CASE, THE QUEEN MOVES FIRST, THEN THE OTHER PIECE.

I love how the Black Queen seems to have the White Knight pinned to the White Queen. Amazing how this position backfires.

Click the lightbulb twice to see White's first move followed by the blunder. Find mate in 5 moves.

Click the lightbulb twice to see Black's first move followed by the blunder. Find checkmate in 10 moves.

I LIVESo, I'm Irongine. Hi Again. But unfortunately, my old email got deleted (school email), which means I can't access my old account.
So this is my new account! A brand new me, who is still bad at chess and sometimes good at checkmates. 
Click the lightbulb twice (or find) black's move, and white's blunder. Can you capitalize on the error?

Thanks for that nice puzzle. I got most of the moves. Just wasn't sure where to place the Black Bishop's second move. I thought moving further back to its original square on d6 would also work. But analysis shows that the White Queen would have blocked on h3 instead of h5 giving the White King a chance to escape.

Sometimes discovered checks are very difficult; it's a question to determine what is the best square to move a piece to. In most normal positions, it's moved to a place where it can win material on the next turn, but in checkmating attacks, you have to put your piece in the way of potential defenders (Like in this puzzle), or in a method that blocks potential escape squares of the enemy king

Good advice. Thanks again.

Click the lightbulb twice to see White's first move followed by the blunder. Find mate in 4 moves.

Click the lightbulb twice to see White's first move followed by the blunder. Find mate in 7 moves.

The position is chaotic, but there's a move for white (which I found) to turn the tides. However, after black makes a mistake, can you follow up with clarity?
Click the Lightbulb twice, or find, White's only move for advantage. Then, watch black blunder.