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Problem Display

PID: 140961 (4r3/1B1p3K/3p4/q3k3/8/4p3/6Q1/4B3 w - - 0 1)

Dore, Marcel

2nd HM., Ryan-55 JT (Maroc Echecs), 2011

4r3/1B1p3K/3p4/q3k3/8/4p3/6Q1/4B3

#3

4 + 6

SOLUTION

SOUND
Sets
- 1...Qc3
  - 2.Qg5+
    - 2...Kd4
      - 3.Qd5#
    - 2...Ke6
      - 3.Bd5#
- 1...Qb4
  - 2.Qg5+
    - 2...Kd4
      - 3.Qd5#
    - 2...Ke6
      - 3.Bd5#
- 1...Qb6
  - 2.Qg5+
    - 2...Kd4
      - 3.Qd5#
    - 2...Ke6
      - 3.Bd5#
- 1...Qc7
  - 2.Qg5+
    - 2...Kd4
      - 3.Qd5#
    - 2...Ke6
      - 3.Bd5#
- 1...Qa1
  - 2.Qg5+
    - 2...Kd4
      - 3.Qd5#
    - 2...Ke6
      - 3.Bd5#
- 1...Qa3
  - 2.Qg5+
    - 2...Kd4
      - 3.Qd5#
    - 2...Ke6
      - 3.Bd5#
- 1...Qa4
  - 2.Qg5+
    - 2...Kd4
      - 3.Qd5#
    - 2...Ke6
      - 3.Bd5#
- 1...Qa6
  - 2.Qg5+
    - 2...Kd4
      - 3.Qd5#
    - 2...Ke6
      - 3.Bd5#
- 1...Qa7
  - 2.Qg5+
    - 2...Kd4
      - 3.Qd5#
    - 2...Ke6
      - 3.Bd5#
Keys
- 1.Bc3+!
  - 1...Kf4
    - 2.Qf3+
      - 2...Kg5
        3.Bf6#
  - 1...Kf5
    - 2.Qf3+
      - 2...Kg5
        3.Bf6#
      - 2...Ke6
        3.Qf6#
  - 1...Ke6
    - 2.Qg6+
      - 2...Ke7
        3.Qf6#
  - 1...Qxc3
    - 2.Qg5+
      - 2...Kd4
        3.Qd5#
      - 2...Ke6
        3.Bd5#

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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).