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Problem Display

PID: 118324 (2b4k/4NR2/2pP2p1/2p1P1Pp/1P4P1/5p2/3PRK2/3BQN2 w - - 0 1)

Pugachev, Sergey Timofeevich

Keres MT, 1977

2b4k/4NR2/2pP2p1/2p1P1Pp/1P4P1/5p2/3PRK2/3BQN2

#3

13 + 7

6490	yacpdb	2009

SOLUTION

SOUND
Sets
- 1...Ba6
  - 2.d7
    - threat
      - 3.d8Q#
      - 3.d8R#
- 1...Bb7
  - 2.d7
    - threat
      - 3.d8Q#
      - 3.d8R#
- 1...hxg4
  - 2.Sg3
    - threat
      - 3.Qh1#
Tries
- 1.d7?
  - threat
    - 2.dxc8Q#
    - 2.dxc8R#
    - 2.d8Q#
    - 2.d8R#
  - 1...fxe2
    - 2.dxc8Q#
    - 2.dxc8R#
    - 2.d8Q#
    - 2.d8R#
  - 1...cxb4
    - 2.dxc8Q#
    - 2.dxc8R#
    - 2.d8Q#
    - 2.d8R#
  - 1...hxg4
    - 2.dxc8Q#
    - 2.dxc8R#
    - 2.d8Q#
    - 2.d8R#
  - 1...c4
    - 2.dxc8Q#
    - 2.dxc8R#
    - 2.d8Q#
    - 2.d8R#
  - 1...h4
    - 2.dxc8Q#
    - 2.dxc8R#
    - 2.d8Q#
    - 2.d8R#
  - 1...Bxd7!
Keys
- 1.e6!
  - 1...Bxe6
    - 2.Rxe6
      - threat
        3.Qe5#
  - 1...fxe2
    - 2.Qxe2
      - threat
        3.Qe5#
  - 1...cxb4
    - 2.Bb3
      - threat
        3.Qa1#
  - 1...hxg4
    - 2.Sg3
      - threat
        3.Qh1#
  - 1...Ba6
    - 2.d7
      - threat
        3.d8Q#
        3.d8R#
  - 1...Bb7
    - 2.d7
      - threat
        3.d8Q#
        3.d8R#
  - 1...Bd7
    - 2.exd7
      - threat
        3.d8Q#
        3.d8R#
  - 1...c4
    - 2.d3
      - threat
        3.Qc3#
      - 2...c3
        3.Qxc3#
  - 1...h4
    - 2.Kxf3
      - threat
        3.Qxh4#
      - 2...h3
        3.Qh4#

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).