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Problem Display

PID: 75338 (8/5R1N/8/7n/8/8/5K1P/7k w - - 0 1)

Grupen, Claus

Problem Observer, 2007

8/5R1N/8/7n/8/8/5K1P/7k

#3

4 + 2

SOLUTION

SOUND
Sets
- 1...Sf4
  - 2.Rxf4
    - 2...Kxh2
      - 3.Rh4#
- 1...Sf6
  - 2.Sxf6
    - 2...Kxh2
      - 3.Rh7#
  - 2.Rxf6
    - 2...Kxh2
      - 3.Rh6#
Tries
- 1.Sf6?
  - 1...Kxh2
    - 2.Rh7
      - threat
        3.Rxh5#
      - 2...Kh1
        3.Rxh5#
      - 2...Kh3
        3.Rxh5#
  - 1...Sxf6
    - 2.Rxf6
      - 2...Kxh2
        3.Rh6#
  - 1...Sg3
    - 2.hxg3
      - 2...Kh2
        3.Rh7#
  - 1...Sg7
    - 2.Rxg7
      - 2...Kxh2
        3.Rh7#
  - 1...Sf4!
- 1.Sf8?
  - 1...Sg3
    - 2.hxg3
      - 2...Kh2
        3.Rh7#
  - 1...Sf4
    - 2.Rxf4
      - 2...Kxh2
        3.Rh4#
  - 1...Sf6
    - 2.Rxf6
      - 2...Kxh2
        3.Rh6#
  - 1...Sg7
    - 2.Rxg7
      - 2...Kxh2
        3.Rh7#
  - 1...Kxh2!
- 1.Rf5?
  - 1...Sg3
    - 2.hxg3
      - 2...Kh2
        3.Rh5#
  - 1...Sf4
    - 2.Rxf4
      - 2...Kxh2
        3.Rh4#
  - 1...Sf6
    - 2.Sxf6
      - 2...Kxh2
        3.Rh5#
    - 2.Rxf6
      - 2...Kxh2
        3.Rh6#
  - 1...Sg7!
Keys
- 1.Sg5!
  - 1...Kxh2
    - 2.Rh7
      - 2...Kh1
        3.Rxh5#
  - 1...Sg3
    - 2.hxg3
      - 2...Kh2
        3.Rh7#
  - 1...Sf4
    - 2.Rxf4
      - 2...Kxh2
        3.Rh4#
  - 1...Sf6
    - 2.Rxf6
      - 2...Kxh2
        3.Rh6#
  - 1...Sg7
    - 2.Rxg7
      - 2...Kxh2
        3.Rh7#

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