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Problem Display

PID: 162223 (5K2/2p3N1/2p1P2B/2P3Pp/2B1kp1P/7P/8/6Q1 w - - 0 1)

Petrasinovic, Petrasin

The Problemist, 2015

5K2/2p3N1/2p1P2B/2P3Pp/2B1kp1P/7P/8/6Q1

#3

10 + 5

SOLUTION

SOUND
Tries
- 1.Qf2?
  - threat
    - 2.g6
      - threat
        3.Qxf4#
      - 2...Ke5
        3.Qxf4#
      - 2...f3
        3.Qe3#
  - 1...Ke5
    - 2.e7
      - threat
        3.e8Q#
        3.e8R#
      - 2...Ke4
        3.e8Q#
        3.e8R#
      - 2...f3
        3.Qe3#
  - 1...f3!
- 1.g6?
  - threat
    - 2.Qf2
      - threat
        3.Qxf4#
      - 2...Ke5
        3.Qxf4#
      - 2...f3
        3.Qe3#
  - 1...Kf3
    - 2.Qh2
      - 2...Ke3
        3.Qxf4#
      - 2...Ke4
        3.Qxf4#
  - 1...Ke5!
- 1.e7?
  - threat
    - 2.e8Q+
      - 2...Kf3
        3.Be2#
        3.Qxc6#
        3.Qe2#
    - 2.e8R+
      - 2...Kf3
        3.Be2#
  - 1...f3
    - 2.e8Q+
      - 2...Kf4
        3.Qh2#
        3.Qee3#
        3.g6#
    - 2.e8R+
      - 2...Kf4
        3.Qh2#
        3.g6#
  - 1...Kf3!
Keys
- 1.Sf5!
  - threat
    - 2.Qe1+
      - 2...Kf3
        3.Qe2#
      - 2...Kxf5
        3.Bd3#
  - 1...Kf3
    - 2.Qh1+
      - 2...Kf2
        3.Qf1#
  - 1...Ke5
    - 2.Qe1+
      - 2...Kxf5
        3.Bd3#
  - 1...Kxf5
    - 2.Qb1+
      - 2...Ke5
        3.Bg7#
  - 1...f3
    - 2.Qe3+
      - 2...Kxf5
        3.Bd3#

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