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Problem Display

PID: 71685 (8/4R3/8/2p1B3/2PpNp2/4k1p1/3N4/3K4 w - - 0 1)

Grassano, Carlos A

Problem Observer, 2006

8/4R3/8/2p1B3/2PpNp2/4k1p1/3N4/3K4

#3

6 + 5

SOLUTION

SOUND
Sets
- 1...f3
  - 2.Rf7
    - threat
      - 3.Rxf3#
    - 2...Kd3
      - 3.Rxf3#
    - 2...f2
      - 3.Rf3#
Tries
- 1.Bxf4+?
  - 1...Kd3
    - 2.Bxg3
      - 2...Ke3
        3.Sf2#
        3.Sxc5#
    - 2.Ra7
      - 2...g2
        3.Ra3#
    - 2.Rb7
      - 2...g2
        3.Rb3#
    - 2.Rg7
      - 2...g2
        3.Rg3#
    - 2.Rh7
      - 2...g2
        3.Rh3#
  - 1...Kxf4!
- 1.Rf7?
  - threat
    - 2.Rxf4
      - threat
        3.Rf3#
      - 2...Kd3
        3.Rf3#
  - 1...Kd3
    - 2.Rxf4
      - threat
        3.Rf3#
      - 2...Ke3
        3.Rf3#
  - 1...d3
    - 2.Bxf4+
      - 2...Kd4
        3.Rd7#
    - 2.Rxf4
      - 2...g2
        3.Rf3#
  - 1...g2!
Keys
- 1.Rh7!
  - 1...Kd3
    - 2.Bxf4
      - 2...g2
        3.Rh3#
  - 1...g2
    - 2.Rh3+
      - 2...f3
        3.Rxf3#
  - 1...d3
    - 2.Rh1
      - threat
        3.Re1#
  - 1...f3
    - 2.Rf7
      - threat
        3.Rxf3#
      - 2...Kd3
        3.Rxf3#
      - 2...f2
        3.Rf3#

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