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Problem Display

PID: 183502 (Q2K1N2/3P1k2/5N2/8/8/6p1/8/8 w - - 0 1)

Grupen, Claus

Problem Observer, 2016

Q2K1N2/3P1k2/5N2/8/8/6p1/8/8

#3

5 + 2

SOLUTION

SOUND
Tries
- 1.Se8?
  - threat
    - 2.Qa1
      - threat
        3.Qg7#
      - 2...Kxf8
        3.Qg7#
      - 2...Kg8
        3.Qg7#
  - 1...Kg8
    - 2.Qa1
      - threat
        3.Qg7#
      - 2...Kf7
        3.Qg7#
      - 2...Kxf8
        3.Qg7#
  - 1...g2
    - 2.Qxg2
      - 2...Kxf8
        3.Qg7#
  - 1...Kxf8!
- 1.Qe4?
  - threat
    - 2.Qe7#
  - 1...Kg7
    - 2.Ke7
      - threat
        3.Qh7#
      - 2...Kh6
        3.Qg6#
      - 2...Kh8
        3.Qh7#
    - 2.Qg6+
      - 2...Kxf8
        3.Sh7#
        3.Qg8#
      - 2...Kh8
        3.Qh7#
        3.Qh6#
        3.Qg8#
  - 1...Kxf6!
Keys
- 1.Sh5!
  - threat
    - 2.Qa1
      - threat
        3.Qg7#
      - 2...Kxf8
        3.Qg7#
      - 2...Kg8
        3.Qg7#
  - 1...Kxf8
    - 2.Kc7+
      - 2...Ke7
        3.Qe8#
      - 2...Kf7
        3.Qe8#
  - 1...Kg8
    - 2.Qa1
      - threat
        3.Qg7#
      - 2...Kf7
        3.Qg7#
      - 2...Kxf8
        3.Qg7#
  - 1...g2
    - 2.Qxg2
      - 2...Kxf8
        3.Qg7#

FEATURES

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Developed and maintained by Brian Stephenson.
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