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Problem Display

PID: 39485 (1k6/1P3Q2/8/8/8/3K4/8/8 w - - 0 1)

Speckmann, Werner

Problemas, 1964

1k6/1P3Q2/8/8/8/3K4/8/8

#3

3 + 1

SOLUTION

SOUND
Tries
- 1.Qb3?
  - threat
    - 2.Qb5
      - 2...Ka7
        3.b8Q#
      - 2...Kc7
        3.b8Q#
  - 1...Ka7
    - 2.b8Q+
      - 2...Ka6
        3.Qa2#
        3.Qa4#
        3.Qa3#
        3.Q3b5#
        3.Q3b6#
        3.Q8b6#
        3.Qa8#
    - 2.b8R
      - 2...Ka6
        3.Ra8#
        3.Qa2#
        3.Qa4#
        3.Qa3#
        3.Qb6#
  - 1...Kc7!
- 1.Qe8+?
  - 1...Ka7
    - 2.b8Q+
      - 2...Ka6
        3.Qa4#
        3.Qeb5#
    - 2.b8R
      - 2...Ka6
        3.Qa4#
  - 1...Kxb7!
- 1.Qf4+?
  - 1...Ka7
    - 2.b8Q+
      - 2...Ka6
        3.Qa4#
    - 2.b8R
      - 2...Ka6
        3.Qa4#
  - 1...Kxb7!
- 1.Qc7+?
  - 1...Ka7
    - 2.Kc4
      - 2...Ka6
        3.b8S#
    - 2.b8Q+
      - 2...Ka6
        3.Qcb6#
        3.Qca7#
        3.Qbb6#
        3.Qbb7#
    - 2.b8R+
      - 2...Ka6
        3.Qb6#
  - 1...Kxc7!
- 1.Qf8+?
  - 1...Ka7
    - 2.b8Q+
      - 2...Ka6
        3.Qa3#
    - 2.b8R
      - 2...Ka6
        3.Qa3#
  - 1...Kc7
    - 2.b8Q+
      - 2...Kc6
        3.Qfd6#
      - 2...Kd7
        3.Qbd6#
        3.Qfd6#
        3.Qbc8#
        3.Qfe8#
  - 1...Kxb7!
Keys
- 1.Kc4!
  - 1...Ka7
    - 2.Qc7
      - 2...Ka6
        3.b8S#

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