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Problem Display

PID: 124083 (4Q1nK/8/p1Npp3/3k2p1/1R6/1ppp1b2/3p4/7n w - - 0 1)

Mach, Julius Zdenek

Nymburske Listy, 1942

4Q1nK/8/p1Npp3/3k2p1/1R6/1ppp1b2/3p4/7n

#4

4 + 12

6490	yacpdb	2009

SOLUTION

SOUND
Keys
- 1.Qa8!
  - threat
    - 2.Qxa6
      - threat
        3.Qc4#
        3.Qb5#
      - 2...Kc5
        3.Qc4#
        3.Qb5#
  - 1...Kc5
    - 2.Qxa6
      - threat
        3.Qc4#
        3.Qb5#
      - 2...d5
        3.Se5
        threat
        4.Sxd3#
        4.Qb6#
        3...Kxb4
        4.Sxd3#
        3...d4
        4.Rb5#
  - 1...e5
    - 2.Qxg8+
      - 2...Kxc6
        3.Qc8+
        3...Kd5
        4.Qc4#
  - 1...Sh6
    - 2.Qxa6
      - threat
        3.Qc4#
        3.Qb5#
      - 2...Sf7+
        3.Kg7
        threat
        4.Qc4#
        4.Qb5#
        3...Kc5
        4.Qc4#
        4.Qb5#
  - 1...Se7
    - 2.Qxa6
      - threat
        3.Qc4#
        3.Qb5#
      - 2...Sg6+
        3.Kg7
        threat
        4.Qc4#
        4.Qb5#
        3...Kc5
        4.Qc4#
        4.Qb5#
  - 1...c2
    - 2.Qxa6
      - threat
        3.Qc4#
        3.Qb5#
      - 2...c1Q
        3.Qb5+
        3...Qc5
        4.Rd4#
      - 2...c1R
        3.Qb5+
        3...Rc5
        4.Rd4#
  - 1...a5
    - 2.Sd8+
      - 2...Ke5
        3.Qxf3
        threat
        4.Sc6#
        4.Sf7#

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).