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Problem Display

PID: 270096 (8/5Qp1/4K3/8/5N2/4k2P/3N4/B7 w - - 0 1)

Petrasinovic, Petrasin

Shakhmatnaya kompozitsiya, 2013

8/5Qp1/4K3/8/5N2/4k2P/3N4/B7

#3

6 + 2

SOLUTION

SOUND
Tries
- 1.Sf1+?
  - 1...Kf3
    - 2.Qa7
      - threat
        3.Qe3#
      - 2...Ke4
        3.Qe3#
      - 2...Kxf4
        3.Qe3#
  - 1...Ke4
    - 2.Qa7
      - threat
        3.Qe3#
      - 2...Kf3
        3.Qe3#
      - 2...Kxf4
        3.Qe3#
  - 1...Kf2!
- 1.Bc3?
  - 1...Kf2
    - 2.Qg6
      - 2...Ke1
        3.Qg1#
      - 2...Ke3
        3.Qg3#
    - 2.Qxg7
      - 2...Ke1
        3.Qg1#
      - 2...Ke3
        3.Qd4#
        3.Qg3#
  - 1...g5
    - 2.Qa7+
      - 2...Kxf4
        3.Be5#
        3.Qf2#
  - 1...g6!
- 1.Qh5?
  - threat
    - 2.Qe2+
      - 2...Kxf4
        3.Qe5#
  - 1...Kf2
    - 2.Qf3+
      - 2...Ke1
        3.Qe2#
      - 2...Kg1
        3.Qg2#
  - 1...g5
    - 2.Qe2+
      - 2...Kxf4
        3.Be5#
        3.Qf3#
        3.Qf2#
        3.Qe5#
  - 1...Kxd2!
- 1.Qa7+?
  - 1...Kxf4
    - 2.Qg1
      - threat
        3.Be5#
  - 1...Kxd2!
- 1.Qxg7?
  - threat
    - 2.Qd4#
  - 1...Kf2
    - 2.Bc3
      - 2...Ke1
        3.Qg1#
      - 2...Ke3
        3.Qd4#
        3.Qg3#
  - 1...Kxd2!
Keys
- 1.Qg6!
  - 1...Kxd2
    - 2.Qd3+
      - 2...Kc1
        3.Se2#
      - 2...Ke1
        3.Qe2#
  - 1...Kf2
    - 2.Bc3
      - 2...Ke1
        3.Qg1#
      - 2...Ke3
        3.Qg3#
  - 1...Kxf4
    - 2.Qg1
      - threat
        3.Be5#

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