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Problem Display

PID: 132887 (8/5K2/5N2/2p5/2R1Pk2/1Pp5/2P1PP2/8 w - - 0 1)

Grupen, Claus

Problem Observer, 2009

8/5K2/5N2/2p5/2R1Pk2/1Pp5/2P1PP2/8

#3

8 + 3

SOLUTION

SOUND
Sets
- 1...Kg5
  - 2.Rxc5+
    - 2...Kf4
      - 3.Rf5#
    - 2...Kh4
      - 3.Rh5#
    - 2...Kh6
      - 3.Rh5#
Tries
- 1.Ke7?
  - 1...Ke5
    - 2.Rxc5+
      - 2...Kd4
        3.Rd5#
      - 2...Kf4
        3.Rf5#
  - 1...Kg5!
- 1.Kg7?
  - 1...Kg5
    - 2.Rxc5+
      - 2...Kf4
        3.Rf5#
      - 2...Kh4
        3.Rh5#
  - 1...Ke5!
- 1.Rd4?
  - threat
    - 2.Rd5
      - 2...c4
        3.Rf5#
  - 1...Ke5
    - 2.Rd5+
      - 2...Kf4
        3.Rf5#
  - 1...Kg5
    - 2.Rd5+
      - 2...Kf4
        3.Rf5#
      - 2...Kh4
        3.Rh5#
      - 2...Kh6
        3.Rh5#
  - 1...c4
    - 2.Rd5
      - 2...cxb3
        3.Rf5#
  - 1...cxd4!
Keys
- 1.b4!
  - 1...Ke5
    - 2.Rxc5+
      - 2...Kd4
        3.e3#
      - 2...Kf4
        3.Rf5#
      - 2...Kd6
        3.e5#
  - 1...Kg5
    - 2.Rxc5+
      - 2...Kf4
        3.Rf5#
      - 2...Kh4
        3.Rh5#
      - 2...Kh6
        3.Rh5#
  - 1...cxb4
    - 2.Rc5
      - 2...b3
        3.Rf5#

FEATURES

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