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Problem Display

PID: 118435 (3qk3/3pp1K1/8/2Q1B3/8/8/8/8 w - - 0 1)

Svergunov, Vladimir Trofimovich

Amirov MT, 2000

3qk3/3pp1K1/8/2Q1B3/8/8/8/8

#3

3 + 4

6490	yacpdb	2009

SOLUTION

SOUND
Sets
- 1...Qc7
  - 2.Bxc7
    - threat
      - 3.Qh5#
    - 2...d5
      - 3.Qb5#
      - 3.Qc6#
    - 2...d6
      - 3.Qb5#
      - 3.Qc6#
    - 2...e5
      - 3.Qf8#
      - 3.Qxe5#
    - 2...e6
      - 3.Qf8#
- 1...Qc8
  - 2.Qxc8#
- 1...e6
  - 2.Qf8#
Tries
- 1.Bd6?
  - threat
    - 2.Qh5#
  - 1...exd6
    - 2.Qh5+
      - 2...Ke7
        3.Qe2#
        3.Qf7#
  - 1...Qb6
    - 2.Qh5+
      - 2...Kd8
        3.Qh8#
  - 1...Qc7
    - 2.Bxc7
      - threat
        3.Qh5#
      - 2...d5
        3.Qb5#
        3.Qc6#
      - 2...d6
        3.Qb5#
        3.Qc6#
      - 2...e5
        3.Qf8#
        3.Qxe5#
      - 2...e6
        3.Qf8#
    - 2.Qh5+
      - 2...Kd8
        3.Qh8#
  - 1...Qa8
    - 2.Qh5+
      - 2...Kd8
        3.Qh8#
  - 1...Qb8
    - 2.Qh5+
      - 2...Kd8
        3.Qh8#
  - 1...e5
    - 2.Qxe5+
      - 2...Qe7+
        3.Qxe7#
  - 1...Qa5!
Keys
- 1.Bc7!
  - threat
    - 2.Qh5#
  - 1...Qxc7
    - 2.Qh5+
      - 2...Kd8
        3.Qh8#
  - 1...d5
    - 2.Qc6+
      - 2...Qd7
        3.Qg6#
  - 1...d6
    - 2.Qb5+
      - 2...Qd7
        3.Qh5#

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).