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Problem Display

PID: 244103 (2K4B/8/7k/4N3/6R1/8/4n3/8 w - - 0 1)

Ilyasov, Stanislav Alekseevich

Probleemblad, 1981

2K4B/8/7k/4N3/6R1/8/4n3/8

#3

4 + 2

SOLUTION

SOUND
Sets
- 1...Kh5
  - 2.Bf6
    - threat
      - 3.Rh4#
    - 2...Kh6
      - 3.Rh4#
- 1...Kh7
  - 2.Sf7
    - threat
      - 3.Rg7#
Tries
- 1.Sf7+?
  - 1...Kh7
    - 2.Rg7#
  - 1...Kh5!
- 1.Bf6?
  - threat
    - 2.Rh4#
  - 1...Kh7
    - 2.Sf7
      - threat
        3.Rg7#
    - 2.Rh4+
      - 2...Kg8
        3.Rh8#
  - 1...Sg3
    - 2.Rg8
      - threat
        3.Rh8#
      - 2...Kh5
        3.Rh8#
      - 2...Kh7
        3.Rh8#
  - 1...Sf4!
- 1.Bg7+?
  - 1...Kh5
    - 2.Bf6
      - threat
        3.Rh4#
      - 2...Kh6
        3.Rh4#
  - 1...Kh7!
- 1.Rg5?
  - threat
    - 2.Sf7+
      - 2...Kh7
        3.Rg7#
  - 1...Kh7
    - 2.Sf7
      - threat
        3.Rg7#
  - 1...Kxg5!
Keys
- 1.Sd7!
  - threat
    - 2.Sf6
      - threat
        3.Bg7#
    - 2.Bg7+
      - 2...Kh5
        3.Sf6#
      - 2...Kh7
        3.Sf6#
  - 1...Kh5
    - 2.Sf6+
      - 2...Kh6
        3.Bg7#
  - 1...Kh7
    - 2.Sf6+
      - 2...Kh6
        3.Bg7#
      - 2...Kxh8
        3.Rg8#
  - 1...Sg3
    - 2.Bg7+
      - 2...Kh5
        3.Sf6#
      - 2...Kh7
        3.Sf6#
  - 1...Sd4
    - 2.Bg7+
      - 2...Kh5
        3.Sf6#
      - 2...Kh7
        3.Sf6#
  - 1...Sf4
    - 2.Bg7+
      - 2...Kh5
        3.Sf6#
      - 2...Kh7
        3.Sf6#

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