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Problem Display

PID: 14873 (k7/P2Q4/8/1K6/1b6/8/p1p5/8 w - - 0 1)

Speckmann, Werner

Die Schwalbe, 1956

k7/P2Q4/8/1K6/1b6/8/p1p5/8

#3

3 + 4

SOLUTION

SOUND
Sets
- 1...Ba3
  - 2.Ka6
    - threat
      - 3.Qc6#
      - 3.Qc8#
      - 3.Qe8#
      - 3.Qd5#
      - 3.Qb7#
      - 3.Qd8#
- 1...Bc3
  - 2.Kc6
    - threat
      - 3.Qb7#
- 1...Ba5
  - 2.Ka6
    - threat
      - 3.Qc6#
      - 3.Qc8#
      - 3.Qd5#
      - 3.Qb7#
- 1...Bc5
  - 2.Kc6
    - threat
      - 3.Qb7#
- 1...a1S
  - 2.Ka6
    - threat
      - 3.Qc6#
      - 3.Qc8#
      - 3.Qe8#
      - 3.Qd5#
      - 3.Qb7#
      - 3.Qd8#
- 1...a1B
  - 2.Ka6
    - threat
      - 3.Qc6#
      - 3.Qc8#
      - 3.Qe8#
      - 3.Qd5#
      - 3.Qb7#
      - 3.Qd8#
- 1...c1S
  - 2.Kc6
    - threat
      - 3.Qb7#
- 1...c1B
  - 2.Kc6
    - threat
      - 3.Qb7#
Tries
- 1.Qe8+?
  - 1...Kb7
    - 2.Qb8#
  - 1...Kxa7!
- 1.Qd8+?
  - 1...Kb7
    - 2.Qb8#
    - 2.a8Q#
  - 1...Kxa7!
Keys
- 1.Kb6!
  - threat
    - 2.Qc6#
    - 2.Qc8#
    - 2.Qe8#
    - 2.Qd5#
    - 2.Qb7#
    - 2.Qd8#
  - 1...Ba5+
    - 2.Ka6
      - threat
        3.Qc6#
        3.Qc8#
        3.Qd5#
        3.Qb7#
  - 1...Bc5+
    - 2.Kc6
      - threat
        3.Qb7#

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Developed and maintained by Brian Stephenson.
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