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Problem Display

PID: 164855 (4K3/2B2N2/5k1P/5P2/1P6/8/1P3P2/5Q2 w - - 0 1)

Tsaplin, Aleksandr Borisovich

StrateGems, 2015

4K3/2B2N2/5k1P/5P2/1P6/8/1P3P2/5Q2

#3

9 + 1

SOLUTION

SOUND
Tries
- 1.Kd7?
  - threat
    - 2.Qc4
      - 2...Kxf5
        3.Qe6#
  - 1...Kxf7
    - 2.Qg2
      - threat
        3.Qg7#
      - 2...Kf6
        3.Qg6#
      - 2...Kf8
        3.Qg7#
    - 2.Qg1
      - threat
        3.Qg7#
      - 2...Kf6
        3.Qg6#
      - 2...Kf8
        3.Qg7#
  - 1...Kxf5!
- 1.Kd8?
  - 1...Kxf7
    - 2.Qg2
      - threat
        3.Qg7#
      - 2...Kf6
        3.Qg6#
      - 2...Kf8
        3.Qg7#
    - 2.Qg1
      - threat
        3.Qg7#
      - 2...Kf6
        3.Qg6#
      - 2...Kf8
        3.Qg7#
  - 1...Kxf5!
- 1.h7?
  - threat
    - 2.Qd3
      - 2...Kg7
        3.h8Q#
    - 2.Qh3
      - 2...Kg7
        3.Be5#
        3.Qh6#
        3.h8Q#
    - 2.Qb5
      - 2...Kg7
        3.h8Q#
    - 2.Qb1
      - 2...Kg7
        3.h8Q#
  - 1...Kg7
    - 2.h8Q#
  - 1...Kxf5!
Keys
- 1.Sd6!
  - 1...Ke5
    - 2.Qg2
      - 2...Kd4
        3.Qe4#
      - 2...Kf4
        3.Qg3#
      - 2...Kf6
        3.Qg7#
  - 1...Kg5
    - 2.Qh3
      - threat
        3.Se4#
      - 2...Kf4
        3.Qg3#
      - 2...Kf6
        3.Se4#

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