[Retros] First example of 'reverse mate' theme

[Mario Richter]

Hello,

Tom wrote:


> In our 1979 correspondence Jim Mauldon wrote of athe ep minimal, "I see no

> way of eliminating the promoted man...."  He also sent the following

example, in

> which the unit on e3 (denoted "x") can be any Black piece (i.e., not a

pawn):

> 2b1r1nr/5K1k/3q1n1b/4p1pP/5p1p/4x1p1/5p1p/8  Mate in 1.

>

> But it is always an interesting epistemological issue -- how can we

conclude

> that the ep minimal cannot be done without promoted force?

>

> I can't reach that conclusion, although I also couldn't see a way to do

it.

>


And I still believe it can be done without promoted pieces ...

So maybe somebody can check my next attempt in fullfilling the given task?


Mario Richter
Retros Mailing List
October 2004

    a   b   c   d   e   f   g   h
  +---+---+---+---+---+---+---+---+
8 |   | . |   | . |   | . |   |*r | 8   Mate in 1
  +---+---+---+---+---+---+---+---+
7 | . |   | . |*q |*n | K | . |*k | 7
  +---+---+---+---+---+---+---+---+
6 |   | . |*b |*r |   |*p |   |*b | 6
  +---+---+---+---+---+---+---+---+
5 | . |   |*n |   |*p |   |*p | P | 5
  +---+---+---+---+---+---+---+---+
4 |   | . |   |*p |   |*p |   |*p | 4
  +---+---+---+---+---+---+---+---+
3 | . |   | . |   |*p |   |*p |   | 3
  +---+---+---+---+---+---+---+---+
2 |   | . |   | . |   | . |   | . | 2
  +---+---+---+---+---+---+---+---+
1 | . |   | . |   | . |   | . |   | 1  (2+16)
  +---+---+---+---+---+---+---+---+
    a   b   c   d   e   f   g   h


fen = 7r/3qnK1k/2br1p1b/2n1p1pP/3p1p1p/4p1p1/8/8

greetings

  mario