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Problem Display

PID: 185519 (7N/5Nkb/4Q3/8/7K/8/8/8 w - - 0 1)

Cumpe, Josef

Casopis ceskoslovenskych sachistu, 1909

7N/5Nkb/4Q3/8/7K/8/8/8

#3

4 + 2

6490	yacpdb	2018

SOLUTION

SOUND
Sets
- 1...Bg8
  - 2.Qh6#
Keys
- 1.Sg5!
  - threat
    - 2.Qf7+
      - 2...Kh6
        3.Qxh7#
        3.Qf8#
      - 2...Kxh8
        3.Qxh7#
  - 1...Kxh8
    - 2.Qf7
      - threat
        3.Qxh7#
      - 2...Bb1
        3.Qf8#
      - 2...Bc2
        3.Qf8#
      - 2...Bd3
        3.Qf8#
      - 2...Be4
        3.Qf8#
      - 2...Bf5
        3.Qf8#
      - 2...Bg6
        3.Qf8#
      - 2...Bg8
        3.Qf6#
  - 1...Bg6
    - 2.Qxg6+
      - 2...Kf8
        3.Qf7#
      - 2...Kxh8
        3.Sf7#
        3.Qh7#
  - 1...Bb1
    - 2.Qf7+
      - 2...Kh6
        3.Qf8#
      - 2...Kxh8
        3.Qf8#
  - 1...Bc2
    - 2.Qf7+
      - 2...Kh6
        3.Qf8#
      - 2...Kxh8
        3.Qf8#
  - 1...Bd3
    - 2.Qf7+
      - 2...Kh6
        3.Qf8#
      - 2...Kxh8
        3.Qf8#
  - 1...Be4
    - 2.Qf7+
      - 2...Kh6
        3.Qf8#
      - 2...Kxh8
        3.Qf8#
  - 1...Bf5
    - 2.Qf7+
      - 2...Kh6
        3.Qf8#
      - 2...Kxh8
        3.Qf8#
  - 1...Bg8
    - 2.Qe5+
      - 2...Kh6
        3.Qf6#
      - 2...Kf8
        3.Sg6#

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).