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Problem Display

PID: 270614 (8/Pp1N4/3Q4/8/2pPk3/7N/P4P2/2K5 w - - 0 1)

Petrasinovic, Petrasin

Shakhmatnaya Poeziya, 2007

8/Pp1N4/3Q4/8/2pPk3/7N/P4P2/2K5

#3

8 + 3

SOLUTION

SOUND
Sets
- 1...Kf5
  - 2.f3
    - threat
      - 3.Qf6#
- 1...b5
  - 2.a8Q+
    - 2...Kd3
      - 3.Qf3#
    - 2...Kf5
      - 3.Qf3#
- 1...b6
  - 2.a8Q+
    - 2...Kd3
      - 3.Qf3#
    - 2...Kf5
      - 3.Qf3#
Tries
- 1.Sc5+?
  - 1...Kf5
    - 2.Qe6#
  - 1...Kf3!
- 1.Se5?
  - 1...b5
    - 2.Qd7
      - threat
        3.a8Q#
        3.a8B#
    - 2.a8Q+
      - 2...Kf5
        3.Qf3#
        3.Qg6#
    - 2.a8B+
      - 2...Kf5
        3.Qg6#
  - 1...b6
    - 2.Qd7
      - threat
        3.a8Q#
        3.a8B#
    - 2.a8Q+
      - 2...Kf5
        3.Qf3#
        3.Qg6#
    - 2.a8B+
      - 2...Kf5
        3.Qg6#
  - 1...c3!
- 1.Qf4+?
  - 1...Kd3
    - 2.Qe3#
  - 1...Kd5!
- 1.Qe5+?
  - 1...Kd3
    - 2.Qe3#
  - 1...Kf3!
- 1.Qe6+?
  - 1...Kxd4
    - 2.Qe5+
      - 2...Kd3
        3.Sf4#
        3.Sc5#
        3.Qe3#
  - 1...Kf3!
Keys
- 1.Kd1!
  - threat
    - 2.Sc5+
      - 2...Kf3
        3.Qg3#
      - 2...Kf5
        3.Qe6#
  - 1...Kd3
    - 2.Qf4
      - threat
        3.Qe3#
      - 2...Kc3
        3.Qd2#
      - 2...c3
        3.Se5#
  - 1...Kf3
    - 2.Qg6
      - threat
        3.Se5#
  - 1...Kf5
    - 2.f3
      - threat
        3.Qf6#
  - 1...b6
    - 2.a8Q+
      - 2...Kd3
        3.Qf3#
      - 2...Kf5
        3.Qf3#

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