Only Chess
25 May 20
26 May 20
2 edits
@greenpawn34 saidIs it:
BigDoggProblem
D. Place Black King so mate in two with the Bishop giving mate.
Kb8, then 1 Qb6+, if the king goes to a8 Be4# and if it goes to c8 Bf5#
26 May 20
@greenpawn34 saidThen how about:
@KingMe
That works - I was thinking of a pure mate in two. first move is not a check.
Kc8, then 1. Qb6 Kd7 2. Bf5#
26 May 20
1 edit
I remember way back when Raymond Keene (aka The Penguin) did run an annual event on compositions. I sent my replies to the U.K. Times making it past the first round but, beyond that [didn't have the memory/calculation]. Nah...my head can't deal with it. I would like however to see a Fischer 960 option here along with the standard site engine.🚬
26 May 20
1 edit
HI KingMe
That is the one I saw. I never looked for one that checks first move. (good find)
Though valid and sound two move problems very rarely begin with a check.
Now place the Black King on a square if it never moved if cannot be checkmated.
(White can move as many times as they want - once place on the board Black does not move at all)
27 May 20
@greenpawn34 said
HI KingMe
That is the one I saw. I never looked for one that checks first move. (good find)
Though valid and sound two move problems very rarely begin with a check.
Now place the Black King on a square if it never moved if cannot be checkmated.
(White can move as many times as they want - once place on the board Black does not move at all)
b7 (g2)
27 May 20
@greenpawn34 saidGoing off on a tangent here but funny you should say that: I recently started working my way through Laszlo Polgar's "5334 Problems, Combinations, and Games" and am in the "mate in 2" section which is most of the book. One thing I have noticed is my mistakes very often occur when I consider a non checking move and then forget that the square the king has just vacated is not covered and it can go back there. For example I missed the problem below because I thought 1. Qb5 was mate in 2 due to 1... Kd4 2. Qc4# and 1... Kc2 2. Qb1+, which of course just allows the king to go back to c3. (Correct is 1. Rc1+). Oh well, only 100 problems into the 3000+ mate in two's so hopefully will get better 🙂. One thing I've realized that I need to remember better is if the Queen is giving mate adjacent to the King then the flight square's are a "knight's hop" from the Q, so for a Q on b1 to mate a K on c2 something else needs to cover d2 and c3.
HI KingMe
That is the one I saw. I never looked for one that checks first move. (good find)
Though valid and sound two move problems very rarely begin with a check.
Now place the Black King on a square if it never moved if cannot be checkmated.
(White can move as many times as they want - once place on the board Black does not move at all)