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Problem Display

PID: 137699 (4N3/6p1/6pr/6pP/6kP/8/5Q2/4KB2 w - - 0 1)

Labrinakos, Petros

The Problemist Supplement, 2010

4N3/6p1/6pr/6pP/6kP/8/5Q2/4KB2

#3

6 + 5

SOLUTION

SOUND
Sets
- 1...Kxh5
  - 2.Be2+
    - 2...g4
      - 3.Sxg7#
  - 2.Qg3
    - threat
      - 3.Sxg7#
      - 3.Qxg5#
Tries
- 1.Ke2?
  - threat
    - 2.Qf3+
      - 2...Kxh4
        3.Qh3#
  - 1...Kxh5
    - 2.Qg3
      - threat
        3.Sxg7#
        3.Qxg5#
  - 1...gxh4!
- 1.Bg2?
  - threat
    - 2.Qf3+
      - 2...Kxh4
        3.Qh3#
  - 1...Kxh5
    - 2.Bf3+
      - 2...g4
        3.Sxg7#
    - 2.Qe3
      - threat
        3.Qxg5#
      - 2...Kg4
        3.Qxg5#
      - 2...Kxh4
        3.Qh3#
      - 2...gxh4
        3.Bf3#
      - 2...g4
        3.Qg5#
    - 2.Qg3
      - threat
        3.Sxg7#
        3.Qxg5#
  - 1...gxh4!
- 1.Bh3+?
  - 1...Kxh5
    - 2.Sxg7#
  - 1...Kxh3!
- 1.Qf3+?
  - 1...Kxh4
    - 2.Qh3#
  - 1...Kxf3!
Keys
- 1.Qe3!
  - threat
    - 2.Qxg5+
      - 2...Kf3
        3.Bg2#
  - 1...Kf5
    - 2.Bg2
      - threat
        3.Qe4#
      - 2...Kg4
        3.Qxg5#
      - 2...gxh4
        3.Bh3#
  - 1...Rxh5
    - 2.Bg2
      - 2...Kxh4
        3.Qh3#
      - 2...Kf5
        3.Qe4#
      - 2...Rxh4
        3.Qf3#
      - 2...gxh4
        3.Bh3#
      - 2...Rh6
        3.Qxg5#
      - 2...Rh7
        3.Qxg5#
      - 2...Rh8
        3.Qxg5#
  - 1...gxh4
    - 2.Bh3+
      - 2...Kxh5
        3.Sxg7#

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