Hardest mate in 1 puzzles

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Arisktotle

This one certainly works!

jetoba
APISTOTELHS wrote:

@EvinSung:

1) Ne5#

2) Nc2#

(Highlight to see)

Once you look at all of the pins you may find the White-mates-Black answer in the post #305 puzzle.

Tortillagettingbanned

lichess.com

APISTOTELHS
Arisktotle έγραψε:
APISTOTELHS wrote:

@EvinSung:

1) Ne5#

2) Nc2#

(Highlight to see)

1) is selfcheck and therefore illegal.

Oh, yes, in that case: 1.Qd6#

EvinSung

correct

 

EvinSung

white to play

aakdw

Qf2

EvinSung

correct

 

EvinSung

white to play

APISTOTELHS

Qb3

EvinSung

correct

EvinSung

1. white to play

2. black to play

jdh1

Rxd4

EvinSung

1.white to play 2.correct @jhd1

APISTOTELHS

2) One of bxc6 or fxe6 must be legal, I think that it is impossible to tell which of them though.

RewanDemontay
APISTOTELHS wrote:

2) One of bxc6 or fxe6 must be legal, I think that it is impossible to tell which of them though.

It actually is possible. One legal, and the other is illegal.

EvinSung

the answer is bxc6

APISTOTELHS
EvinSung έγραψε:

the answer is bxc6

Can you post the proof? I can't find it myself.

Arisktotle
APISTOTELHS wrote:
EvinSung έγραψε:

the answer is bxc6

Can you post the proof? I can't find it myself.

There are only 2 apparently legal last move for black: c7-c5 or e7-e5 (you want another one? please tell us). However, if Pe5 were on e7 on the last move, how did Bh6 travel from f8 to h6 during the game? Well, it can't and therefore c7-c5 is the only legal last move!