Problem Display
PID: 118910 (8/6pQ/6P1/8/6p1/1p4P1/pp1RN3/1k3K2 w - - 0 1)

Valtsinsh, Eduards Frizis

Latvian Championship, 1957

8/6pQ/6P1/8/6p1/1p4P1/pp1RN3/1k3K2

#3

6 + 6


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Sets
    • 1...Ka1
      • 2.Qxg7
        • 2...Kb1
          • 3.Qxb2#
  • Tries
    • 1.Sc3+?
      • 1...Kc1
        • 2.Ke2
          • threat
            • 3.Qh1#
        • 2.Qh2
          • threat
            • 3.Rd1#
      • 1...Ka1!
    • 1.Qh1?
      • threat
        • 2.Kf2#
        • 2.Kg2#
      • 1...a1Q
        • 2.Sc3+
          • 2...Kc1
            • 3.Ke2#
      • 1...a1S
        • 2.Sc3+
          • 2...Kc1
            • 3.Ke2#
        • 2.Qa8
          • 2...Sc2
            • 3.Rd1#
      • 1...a1B
        • 2.Sc3+
          • 2...Kc1
            • 3.Ke2#
      • 1...a1R
        • 2.Sc3+
          • 2...Kc1
            • 3.Ke2#
      • 1...Ka1!
    • 1.Qh2?
      • 1...a1Q
        • 2.Sc3+
          • 2...Kc1
            • 3.Rd1#
      • 1...a1S
        • 2.Sc3+
          • 2...Kc1
            • 3.Rd1#
      • 1...a1B
        • 2.Sc3+
          • 2...Kc1
            • 3.Rd1#
      • 1...a1R
        • 2.Sc3+
          • 2...Kc1
            • 3.Rd1#
      • 1...Ka1!
    • 1.Qxg7?
      • threat
        • 2.Qxb2#
      • 1...a1B
        • 2.Qf8
          • 2...Ka2
            • 3.Sc3#
        • 2.Qe7
          • 2...Ka2
            • 3.Sc3#
      • 1...a1Q!
  • Keys
    • 1.Qg8!
      • threat
        • 2.Qxb3
          • threat
            • 3.Rd1#
            • 3.Qd1#
            • 3.Qxb2#
          • 2...Ka1
            • 3.Qxb2#
      • 1...Ka1
        • 2.Qxg7
          • 2...Kb1
            • 3.Qxb2#
      • 1...a1Q
        • 2.Qxb3
          • threat
            • 3.Rd1#
      • 1...a1S
        • 2.Qa8
          • 2...Sc2
            • 3.Rd1#
      • 1...a1B
        • 2.Qf8
          • 2...Ka2
            • 3.Sc3#
      • 1...a1R
        • 2.Qxb3
          • threat
            • 3.Rd1#
            • 3.Rxb2#
            • 3.Qxb2#

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).