Mates that are difficult for engines

Here is a very neat Mate in 43 that engines have trouble with:

nice

king goes there, not to triangulate, but to clear way for the bishop to take a4 (going all till a6 is needed to defend b5) then the bishop takes, goes back, the king goes back to a4 (using the cleared b3 square) and a checkmate

Here's another mate, this time in 71 moves. It requires some fancy footwork by the White King and the White Bishop in order to get it down to 71 moves. Of course engines are clueless on this one:

Another "minimal" that engines are hopeless on, this time a mate in 93:

In true Blathy style you might have started with the most profitable single move in chess PgxQf8=Q+. But considering that the 16th unit cannot possibly be added to the diagram due to the b7/d7 formation, there is no hope to achieve the "one against all" aesthetic!

Or. it appears the solution works as well starting with a queen on d1. Wouldn't that add a million years to SF solving time by assessing hopeless queen breakout attempts?

well, we could sacrifice the length of the game to achieve that

which doctor longmover 7 would never do

Here we have a nice mate in 43 with some Bishop action on both sides with a pawn delivering the coup de gras, as usual engines may have a hard time with this:

Looks like this one can be easily extended with 10 moves, using only thematic maneuvers and without changing the pawn structure: (btw, for an elegant take off you can start with 1. d2-d3 Kb2-c3)

.

After looking at it carefully, it indeed does work...and I like it.

Here is a mate in 55 that engines have a hard time with:

Here's another triangulation/zugzwang, this time a mate in 87:

Here's a mate in 43 that has an interesting staircase maneuver that engines have trouble with:

Here is a mate in 77 that uses a cyclical checks/zugzwang strategy that engines have a lot of trouble with:

All from Ohio?

No, that's just where my PGN editor defaults to since "Columbus, Ohio" is where I live.

Btw I can’t do puzzles

https://www.chess.com/forum/view/site-feedback/wrong-wrong-wrong

looking for supporters

would like some

#justiceforemrald

Cool, and this position looks somewhat realistic, like it could occur in a real endgame!

Go cry somewhere else, every time I hear someone cry about how they've been "wronged", they never tell the full story...they always leave out what they did or think what they did wasn't wrong.