The hardest ever mate in 3 puzzle

H6 forces King to G5

QG8+
Forces King to H6

QG7#

https://www.chess.com/analysis/game/pgn/cbUXiVdYr?tab=analysis

you can do rxh3+ Kxh3, Qg2 Kh4, Qg3# or gxh6 kg5, Qg7, kxh6, Qg6#

Both don't work - for different reasons.

Stockfish says it's mate in 4

1. Qb8, Kxg5; 2. Qf4+, Kh4; 3. g5+, checkmate

2. Qb8, hxg5; 2. Rxh3+, Kxh3 3. Qg3+, checkmate

3. ... Kxh5 escapes (in the first variation)

Here's a Sam Loyd mate in 3 puzzle:

This is not mate in 3 folks, scam!

And now the real puzzle (Arisktotle, 2022): Where to place the black king that it will take white more moves to checkmate than on any other square?

Well, OK, use an engine

Btw, Loyd's puzzle and mine can be merged: On which squares can you place the bK such that white can checkmate it either faster or slower than on any other square?

If 1...kg4, 2. E4+ and then g3#.

queen tog8 then black pawn takes then Kg4?

Be precise in your comments. Kg4 is an impossible move. The solution to this puzzle consists of 5 moves - 3 white moves, 2 black moves. You must give all moves.

No. Just stop.

Qh1 is the key move. There are two solutions based on black's two possible responses.

1. Qh1 - hxg5

2. Qg2 - hxg2

3. Nxg2 #

1. Qh1 - Kxg5

2. Ng2 - hxg2

3. h4 #

The first puzzle is so easy that even a 500 rated player can solve it

hi

Ez