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Problem Display

PID: 214824 (8/4K3/6P1/2Qp3p/B3kp1P/8/2P1N2P/8 w - - 0 1)

Petrasinovic, Petrasin

Best Problems, 2020

8/4K3/6P1/2Qp3p/B3kp1P/8/2P1N2P/8

#3

8 + 4

SOLUTION

SOUND
Sets
- 1...Ke5
  - 2.Qd6+
    - 2...Ke4
      - 3.Qxf4#
    - 2...Kf5
      - 3.Qe6#
- 1...f3
  - 2.Sg3+
    - 2...Kf4
      - 3.Qd4#
    - 2...Ke5
      - 3.Qe3#
Tries
- 1.Ke6?
  - threat
    - 2.Qf2
      - threat
        3.Sc3#
        3.Qxf4#
      - 2...f3
        3.Qd4#
    - 2.Qa3
      - threat
        3.Qd3#
    - 2.Qc3
      - threat
        3.Qd3#
  - 1...d4
    - 2.Qa3
      - threat
        3.Bc6#
        3.Qd3#
      - 2...d3
        3.Qxd3#
  - 1...Kf3!
- 1.Sc3+?
  - 1...Kf3
    - 2.Qg1
      - 2...d4
        3.Bc6#
  - 1...Kf5!
- 1.Qf2?
  - threat
    - 2.Qxf4#
  - 1...d4
    - 2.Ke6
      - threat
        3.Bc6#
        3.Qxf4#
    - 2.Kf6
      - threat
        3.Bc6#
      - 2...Kd5
        3.Qxd4#
    - 2.Qxf4+
      - 2...Kd5
        3.Qxd4#
  - 1...f3
    - 2.Sg3+
      - 2...Kf4
        3.Qd4#
      - 2...Ke5
        3.Qe3#
  - 1...Kf5!
Keys
- 1.Qg1!
  - 1...Kf3
    - 2.Sc3
      - 2...d4
        3.Bc6#
  - 1...Ke5
    - 2.Qg5+
      - 2...Ke4
        3.Qxf4#
  - 1...Kf5
    - 2.Qg5+
      - 2...Ke4
        3.Qxf4#
  - 1...d4
    - 2.Bc6+
      - 2...Ke5
        3.Qg5#
      - 2...Kf5
        3.Qg5#
  - 1...f3
    - 2.Sg3+
      - 2...Kf4
        3.Qd4#
      - 2...Ke5
        3.Qe3#

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