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Problem Display

PID: 180791 (8/8/6K1/8/2p1k3/3p4/1Q5R/5N2 w - - 0 1)

Voronin, Vladimir

Sachmatija, 2017

8/8/6K1/8/2p1k3/3p4/1Q5R/5N2

#3

4 + 3

SOLUTION

SOUND
Sets
- 1...Kf3
  - 2.Kf5
    - threat
      - 3.Rf2#
      - 3.Rh3#
      - 3.Qf2#
      - 3.Qg2#
      - 3.Qb7#
  - 2.Qd4
    - threat
      - 3.Rf2#
  - 2.Qe5
    - threat
      - 3.Qf5#
    - 2...Kg4
      - 3.Qg3#
      - 3.Qe4#
      - 3.Qf5#
- 1...Kf4
  - 2.Qd4+
    - 2...Kf3
      - 3.Rf2#
Tries
- 1.Sd2+?
  - 1...Kf4
    - 2.Qd4+
      - 2...Kg3
        3.Qh4#
    - 2.Qf6+
      - 2...Ke3
        3.Qe5#
        3.Qf2#
      - 2...Kg3
        3.Qh4#
      - 2...Kg4
        3.Qh4#
        3.Qg5#
        3.Qf3#
  - 1...Kd5!
- 1.Rh4+?
  - 1...Kf3
    - 2.Qd2
      - 2...c3
        3.Rf4#
    - 2.Qh2
      - threat
        3.Rf4#
  - 1...Kd5!
- 1.Qd4+?
  - 1...Kf3
    - 2.Rf2#
  - 1...Kxd4!
- 1.Qe5+?
  - 1...Kf3
    - 2.Qf5#
  - 1...Kxe5!
- 1.Qf6?
  - threat
    - 2.Sd2+
      - 2...Ke3
        3.Qe5#
        3.Qf2#
      - 2...Kd5
        3.Rh5#
    - 2.Sg3+
      - 2...Ke3
        3.Qf2#
      - 2...Kd5
        3.Rh5#
  - 1...d2
    - 2.Rxd2
      - 2...c3
        3.Rd4#
        3.Qf5#
  - 1...c3
    - 2.Qf5+
      - 2...Kd4
        3.Rh4#
  - 1...Kd5!
Keys
- 1.Qb5!
  - 1...Kd4
    - 2.Rh4+
      - 2...Kc3
        3.Rxc4#
  - 1...d2
    - 2.Rxd2
      - threat
        3.Qf5#
      - 2...Kf3
        3.Qf5#
      - 2...Kf4
        3.Qf5#
  - 1...c3
    - 2.Qf5+
      - 2...Kd4
        3.Rh4#

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