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Problem Display

PID: 79444 (2B4N/6k1/3K1N2/8/8/8/7p/1R6 w - - 0 1)

Bacmeister, Kurt

Denk mit, 1974

2B4N/6k1/3K1N2/8/8/8/7p/1R6

#3

5 + 2

SOLUTION

SOUND
Sets
- 1...Kf8
  - 2.Rb7
    - threat
      - 3.Sg6#
      - 3.Rf7#
Tries
- 1.Rb3?
  - threat
    - 2.Rg3+
      - 2...Kxf6
        3.Rg6#
      - 2...Kh6
        3.Sf7#
        3.Rg6#
      - 2...Kf8
        3.Rg8#
      - 2...Kxh8
        3.Rg8#
  - 1...Kxf6
    - 2.Rg3
      - threat
        3.Rg6#
  - 1...Kh6
    - 2.Rg3
      - threat
        3.Sf7#
        3.Rg6#
  - 1...Kf8
    - 2.Rg3
      - threat
        3.Rg8#
    - 2.Rb7
      - threat
        3.Sg6#
        3.Rf7#
  - 1...Kxh8
    - 2.Rg3
      - threat
        3.Rg8#
  - 1...h1S!
Keys
- 1.Rb4!
  - threat
    - 2.Rg4+
      - 2...Kxf6
        3.Rg6#
      - 2...Kh6
        3.Sf7#
        3.Rg6#
      - 2...Kf8
        3.Rg8#
      - 2...Kxh8
        3.Rg8#
  - 1...Kxf6
    - 2.Rg4
      - threat
        3.Rg6#
  - 1...Kh6
    - 2.Rg4
      - threat
        3.Sf7#
        3.Rg6#
  - 1...Kf8
    - 2.Rg4
      - threat
        3.Rg8#
    - 2.Rb7
      - threat
        3.Sg6#
        3.Rf7#
  - 1...Kxh8
    - 2.Rg4
      - threat
        3.Rg8#

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