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Problem Display

PID: 191660 (8/8/8/3K1N2/5k2/3Qp2P/3b2P1/8 w - - 0 1)

Petsch-Manskopf, Eduard

Schachprobleme, 1915

8/8/8/3K1N2/5k2/3Qp2P/3b2P1/8

#3

5 + 3

6490	yacpdb	2019

SOLUTION

SOUND
Sets
- 1...e2
  - 2.h4
    - threat
      - 3.Qe4#
      - 3.Qf3#
    - 2...Kg4
      - 3.Qf3#
Tries
- 1.Ke6?
  - threat
    - 2.Qe2
      - threat
        3.Qg4#
      - 2...Ke4
        3.Qc4#
      - 2...Kg5
        3.Qg4#
    - 2.Qc4+
      - 2...Kg5
        3.Qg4#
    - 2.Qd4+
      - 2...Kg5
        3.Qg4#
  - 1...e2
    - 2.Qxe2
      - threat
        3.Qg4#
      - 2...Kg5
        3.Qg4#
    - 2.Qc4+
      - 2...Kg5
        3.Qg4#
    - 2.Qxd2+
      - 2...Ke4
        3.Sg3#
        3.Sd6#
        3.Qe3#
        3.Qd4#
    - 2.Qf3+
      - 2...Kg5
        3.Qg4#
    - 2.Qg3+
      - 2...Ke4
        3.Qf3#
    - 2.Qd4+
      - 2...Kg5
        3.Qg4#
  - 1...Kg5!
- 1.g3+?
  - 1...Kf3
    - 2.Qf1#
  - 1...Kg5!
Keys
- 1.Qa6!
  - threat
    - 2.Qg6
      - threat
        3.Qg4#
    - 2.Qh6+
      - 2...Kxf5
        3.g4#
  - 1...Kxf5
    - 2.Qh6
      - threat
        3.g4#
  - 1...Kg5
    - 2.Ke4
      - threat
        3.Qh6#
      - 2...Kh5
        3.Qh6#
    - 2.Qh6+
      - 2...Kxf5
        3.g4#

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).