@MARattigan
You showed proof that you could mate on A8, To my senses you only answered one half of the OP'S question. The question - can I force a mate on the square of choice, implies 2 solutions. From your play I simply showed the second half of the question from the exact same position.
Was just trying to be helpful.
D.
True - one for each chosen corner.
I just answered your question,"against a white Bishop would you wish to hang around H1 or A8?" in the case I posted.
In the other case Black would get no chance to hang around a8.
(So was I.)
Wow
Yes, I both recognized it as an answer, and understood what you were saying.
Thank you
I don't get why the OP wants a specific corner. Assuming White has the pieces, and the Bishop is on a dark square, the first step is to force Black into a light corner. If the King is currently on f4, why would you even blink an eye and say "But, But, But I want the King on a8"? He is closest to h1. Force him to h1.
Then, depending on where your Bishop wound up to force him there determines which corner you drive him to. If it is on the b8-h2 diagonal, you drive it from h1 to a1. If it is on the a7-g1 diagonal, you drive it from h1 to h8.
I have memorized the line of driving the king from a1 to a8. The W is b3-d4-b5-d6-b7 and the Bishop maneuver is Bf5-d7 right after the Nb5 move.
If you know one, you just flip and rotate for the other 7 possibilities.
Going h1 to a1 would be a rotate scenario. W is f2-e4-d2-c3-b2, Bishop maneuver is Bd6-b4.
Going h1 to h8 is a left to right flip (or diagonal flip and 90 degree rotation), so the W is g3-e4-g5-e6-g7 and the Bishop maneuver is Bc5-e7.
So there is absolutely no reason to have a specific corner in mind. Whichever wrong corner Black runs to, or whichever wrong corner his is closest to, you drive him there and then drag him across or down the board depending on the arrangement of pieces when the K is cornered. Do not waster time rearranging pieces just to change it from a horizontal to vertical drag of the king or vice versa. Utter stupidity!
He wanted something more challenging to practice. Seems quite reasonable to me.
Yep, but as I posted in #9 it is quite easy to rotate the pieces. If he wants a challenge, then he must try it blindfolded.
@bigD521
OP's question was how to mate in a chosen corner of the same colour as the bishop, not either corner of the same colour as the bishop nor on a square adjacent to a corner.
For illustration I assumed the chosen corner to be a8 in the example OP had previously given.
With that choice, if I had mated on h1 I would have failed OP's task.
With OP's task Black's best chance to avoid being mated on a8 would be to first try to resist the advance of the White king towards h1 then drop back and hang around h1. If he's mated or stalemated in or around h1 he's foiled my plan, also if it takes me longer than 50 moves to extract him form h1 and force him to a8.
SF doesn't do that in my example because he doesn't know what the objective is. Hence the need to practice against a human who has been told the objective.
Many of the posts in the thread have, like SF, taken the task to be simply mate, so the thread's a bit confusing.