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Problem Display

PID: 223843 (8/5P2/7k/8/5R2/5K2/8/8 w - - 0 1)

Hultberg, Gustav Herbert

Deutsche Schachzeitung, 1982

8/5P2/7k/8/5R2/5K2/8/8

#3

3 + 1

6490	yacpdb	2020

SOLUTION

SOUND
Tries
- 1.Rf6+?
  - 1...Kg5
    - 2.f8Q
      - threat
        3.Qh6#
      - 2...Kh4
        3.Qh6#
      - 2...Kh5
        3.Qh6#
  - 1...Kh5
    - 2.Kf4
      - 2...Kh4
        3.Rh6#
    - 2.f8Q
      - threat
        3.Qh6#
      - 2...Kh4
        3.Qh6#
      - 2...Kg5
        3.Qh6#
  - 1...Kg7
    - 2.f8Q+
      - 2...Kh7
        3.Rh6#
  - 1...Kh7!
- 1.f8Q+?
  - 1...Kg5
    - 2.Rg4+
      - 2...Kh5
        3.Qh8#
    - 2.Rf6
      - threat
        3.Qh6#
      - 2...Kh4
        3.Qh6#
      - 2...Kh5
        3.Qh6#
    - 2.Qf6+
      - 2...Kh5
        3.Rh4#
        3.Rf5#
  - 1...Kh5
    - 2.Rf6
      - threat
        3.Qh6#
      - 2...Kh4
        3.Qh6#
      - 2...Kg5
        3.Qh6#
    - 2.Qg8
      - 2...Kh6
        3.Rh4#
  - 1...Kg6
    - 2.Rg4+
      - 2...Kh5
        3.Qh8#
      - 2...Kh7
        3.Qg7#
    - 2.Rf6+
      - 2...Kg5
        3.Qh6#
      - 2...Kh5
        3.Qh6#
      - 2...Kh7
        3.Rh6#
  - 1...Kh7!
Keys
- 1.Rg4!
  - threat
    - 2.f8Q+
      - 2...Kh5
        3.Qh8#
      - 2...Kh7
        3.Qg7#
  - 1...Kh5
    - 2.f8R
      - 2...Kh6
        3.Rh8#
  - 1...Kh7
    - 2.f8R
      - 2...Kh6
        3.Rh8#

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