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Problem Display

PID: 31994 (8/2K5/3P4/k7/8/8/pNN1B3/8 w - - 0 1)

Derevenko, I

Shakhmaty v SSSR, 1937

8/2K5/3P4/k7/8/8/pNN1B3/8

#3

5 + 2

3296	Shakhmatny zadachi miniaturi	1987

SOLUTION

SOUND
Keys
- 1.d7!
  - threat
    - 2.Kc6
      - threat
        3.d8Q#
        3.d8B#
    - 2.Kb7
      - threat
        3.d8Q#
        3.d8B#
    - 2.d8Q
      - threat
        3.Kc6#
        3.Kd6#
        3.Kb7#
        3.Kd7#
        3.Kb8#
        3.Kc8#
        3.Qg5#
        3.Qd2#
        3.Qd5#
        3.Qa8#
    - 2.d8S
      - threat
        3.Sc6#
        3.Sb7#
    - 2.d8B
      - threat
        3.Kc6#
        3.Kd6#
        3.Kb7#
        3.Kd7#
        3.Kb8#
        3.Kc8#
    - 2.d8R
      - threat
        3.Rd5#
        3.Ra8#
  - 1...a1Q
    - 2.d8Q
      - threat
        3.Kc6#
        3.Kd6#
        3.Kb7#
        3.Kd7#
        3.Kb8#
        3.Kc8#
        3.Qg5#
        3.Qd2#
        3.Qd5#
        3.Qa8#
  - 1...a1S
    - 2.d8S
      - threat
        3.Sc6#
        3.Sb7#
  - 1...a1B
    - 2.d8Q
      - 2...Bxb2
        3.Qa8#
    - 2.d8R
      - 2...Bxb2
        3.Ra8#
  - 1...a1R
    - 2.d8Q
      - threat
        3.Kc6#
        3.Kd6#
        3.Kb7#
        3.Kd7#
        3.Kb8#
        3.Kc8#
        3.Qg5#
        3.Qd2#
        3.Qd5#
        3.Qa8#
    - 2.d8S
      - threat
        3.Sc6#
        3.Sb7#
    - 2.d8R
      - threat
        3.Rd5#
        3.Ra8#

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