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Problem Display

PID: 153313 (8/4N3/4k3/1KQ1N3/8/7P/3P4/8 w - - 0 1)

Neyndorff, Luke

StrateGems, 2012

8/4N3/4k3/1KQ1N3/8/7P/3P4/8

#3

6 + 1

SOLUTION

SOUND
Tries
- 1.Qb6+?
  - 1...Kxe5
    - 2.Ka4
      - 2...Ke4
        3.Qe3#
      - 2...Kf4
        3.Qe3#
    - 2.Kb4
      - 2...Ke4
        3.Qe3#
      - 2...Kf4
        3.Qe3#
    - 2.Kc4
      - 2...Ke4
        3.Qe3#
      - 2...Kf4
        3.Qe3#
    - 2.Ka5
      - 2...Ke4
        3.Qe3#
      - 2...Kf4
        3.Qe3#
    - 2.Ka6
      - 2...Ke4
        3.Qe3#
      - 2...Kf4
        3.Qe3#
    - 2.Qh6
      - 2...Kd4
        3.Qe3#
      - 2...Ke4
        3.Qe3#
  - 1...Kxe7!
- 1.Qd5+?
  - 1...Kxe7
    - 2.Qf7+
      - 2...Kd6
        3.Sc4#
      - 2...Kd8
        3.Qd7#
  - 1...Kf6!
- 1.Qc6+?
  - 1...Kxe5
    - 2.Qb6
      - 2...Ke4
        3.Qe3#
      - 2...Kf4
        3.Qe3#
    - 2.Qh6
      - 2...Kd4
        3.Qe3#
      - 2...Ke4
        3.Qe3#
  - 1...Kxe7!
Keys
- 1.Qf2!
  - 1...Kxe5
    - 2.Qb6
      - 2...Ke4
        3.Qe3#
      - 2...Kf4
        3.Qe3#
  - 1...Kd6
    - 2.Qf6+
      - 2...Kc7
        3.Qb6#
  - 1...Kxe7
    - 2.Qf7+
      - 2...Kd6
        3.Sc4#
      - 2...Kd8
        3.Qd7#

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