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Problem Display

PID: 270278 (8/6Q1/3pk3/4p1P1/P7/3NB2K/8/8 w - - 0 1)

Petrasinovic, Petrasin

Schweizerische Schachzeitung, 2022

8/6Q1/3pk3/4p1P1/P7/3NB2K/8/8

#3

6 + 3

SOLUTION

SOUND
Sets
- 1...e4
  - 2.Sf4+
    - 2...Kf5
      - 3.Qf6#
- 1...d5
  - 2.Sc5+
    - 2...Kf5
      - 3.Qf6#
      - 3.Qf7#
      - 3.Qh7#
    - 2...Kd6
      - 3.Qd7#
Tries
- 1.Kg4?
  - 1...d5
    - 2.Sc5+
      - 2...Kd6
        3.Qd7#
  - 1...Kd5!
- 1.Sf4+?
  - 1...Kf5
    - 2.Qg6#
  - 1...exf4!
- 1.Sc5+?
  - 1...Kd5
    - 2.Qb7+
      - 2...Kc4
        3.Qb3#
    - 2.Qf7+
      - 2...Kc6
        3.Qb7#
  - 1...dxc5!
- 1.Bb6?
  - 1...Kf5
    - 2.Qf7+
      - 2...Ke4
        3.Sf2#
      - 2...Kxg5
        3.Be3#
  - 1...e4
    - 2.Sf4+
      - 2...Kf5
        3.Qf6#
  - 1...d5
    - 2.Sc5+
      - 2...Kf5
        3.Qf6#
      - 2...Kd6
        3.Qf6#
        3.Qc7#
        3.Qd7#
  - 1...Kd5!
- 1.Qb7?
  - 1...d5
    - 2.Sc5+
      - 2...Kf5
        3.Qf7#
        3.Qh7#
      - 2...Kd6
        3.Qd7#
  - 1...e4
    - 2.Sf4+
      - 2...Ke5
        3.Qd5#
      - 2...Kf5
        3.Qd5#
  - 1...Kf5!
Keys
- 1.Ba7!
  - 1...Kd5
    - 2.Qf7+
      - 2...Ke4
        3.Sf2#
      - 2...Kc6
        3.Sb4#
  - 1...Kf5
    - 2.Qf7+
      - 2...Ke4
        3.Sf2#
      - 2...Kxg5
        3.Be3#
  - 1...e4
    - 2.Sf4+
      - 2...Kf5
        3.Qf6#
  - 1...d5
    - 2.Sc5+
      - 2...Kf5
        3.Qf6#
      - 2...Kd6
        3.Qd7#

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).