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Problem Display

PID: 141586 (Q3R3/5k2/5PN1/8/1K6/8/2p5/8 w - - 0 1)

Massmann, Wilhelm Karl Heinrich

4th HM., Die Schwalbe, 1965

Q3R3/5k2/5PN1/8/1K6/8/2p5/8

#3

5 + 2

23	Die Schwalbe	1969

SOLUTION

SOUND
Tries
- 1.Re5?
  - threat
    - 2.Qf8+
      - 2...Kxg6
        3.Qg7#
    - 2.Qh8
      - threat
        3.Qg7#
      - 2...Kxg6
        3.Qg7#
  - 1...Kxg6
    - 2.Qf8
      - threat
        3.Qg7#
      - 2...Kh7
        3.Qg7#
    - 2.Qh8
      - threat
        3.Qg7#
      - 2...Kf7
        3.Qg7#
  - 1...c1Q
    - 2.Qf8+
      - 2...Kxg6
        3.Qg7#
  - 1...c1S
    - 2.Qf8+
      - 2...Kxg6
        3.Qg7#
  - 1...c1B
    - 2.Qf8+
      - 2...Kxg6
        3.Qg7#
  - 1...c1R
    - 2.Qf8+
      - 2...Kxg6
        3.Qg7#
  - 1...Kxf6!
Keys
- 1.Qg2!
  - threat
    - 2.Se5+
      - 2...Kxf6
        3.Qg6#
      - 2...Kxe8
        3.Qa8#
        3.Qg8#
  - 1...Kxf6
    - 2.Sh4
      - threat
        3.Qg6#
      - 2...Kf7
        3.Qg6#
  - 1...Kxe8
    - 2.Qd5
      - threat
        3.f7#
  - 1...c1Q
    - 2.Se5+
      - 2...Kxf6
        3.Qg6#
      - 2...Kxe8
        3.Qg8#
  - 1...c1R
    - 2.Se5+
      - 2...Kxf6
        3.Qg6#
      - 2...Kxe8
        3.Qg8#

FEATURES

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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).