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Problem Display

PID: 269201 (8/3p4/3N4/B3k3/8/7Q/5KN1/8 w - - 0 1)

Petrasinovic, Petrasin

2nd HM., Problem Paradise, 2018

8/3p4/3N4/B3k3/8/7Q/5KN1/8

#3

5 + 2

SOLUTION

SOUND
Sets
- 1...Kd4
  - 2.Qh5
    - 2...Kd3
      - 3.Qd1#
Tries
- 1.Se3?
  - 1...Kd4
    - 2.Qh5
      - 2...Kd3
        3.Qd1#
        3.Qd5#
  - 1...Kf6
    - 2.Qh6+
      - 2...Ke5
        3.Bc3#
      - 2...Ke7
        3.Sd5#
        3.Sef5#
  - 1...Kxd6!
- 1.Bb4?
  - threat
    - 2.Qf5+
      - 2...Kd4
        3.Qe4#
  - 1...Kd4
    - 2.Qc3+
      - 2...Kd5
        3.Sf4#
    - 2.Qe3+
      - 2...Kd5
        3.Qe4#
    - 2.Qh5
      - 2...Kd3
        3.Qd1#
  - 1...Kd5
    - 2.Qf5+
      - 2...Kd4
        3.Qe4#
      - 2...Kc6
        3.Qc5#
    - 2.Qe3
      - 2...Kc6
        3.Qc5#
  - 1...Kf6!
- 1.Qf5+?
  - 1...Kd4
    - 2.Qg5
      - 2...Kd3
        3.Qd2#
    - 2.Qh5
      - 2...Kd3
        3.Qd1#
  - 1...Kxd6!
- 1.Qe3+?
  - 1...Kd5
    - 2.Bb4
      - 2...Kc6
        3.Qc5#
  - 1...Kxd6
    - 2.Sf4
      - 2...Kc6
        3.Qb6#
  - 1...Kf6!
- 1.Qh6?
  - 1...Kd4
    - 2.Qg5
      - 2...Kd3
        3.Qd2#
    - 2.Qh5
      - 2...Kd3
        3.Qd1#
  - 1...Kd5!
Keys
- 1.Sf4!
  - threat
    - 2.Qc3+
      - 2...Kxf4
        3.Qg3#
      - 2...Kxd6
        3.Bb4#
  - 1...Kxd6
    - 2.Qe3
      - 2...Kc6
        3.Qb6#
  - 1...Kf6
    - 2.Qh6+
      - 2...Ke5
        3.Bc3#
      - 2...Ke7
        3.Sd5#

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