Problem Display
PID: 205361 (Q2R4/8/8/1pN2K2/2k1P3/8/8/8 w - - 0 1)

Kriuckov, Sergey Petrovic

64 Shakhmatnoe obozrenie, 1925

Q2R4/8/8/1pN2K2/2k1P3/8/8/8

#3

5 + 2


6490 yacpdb 2020
  • SOUND
  • Tries
    • 1.Rd5?
      • threat
        • 2.Qa3
          • 2...b4
            • 3.Qd3#
      • 1...Kb4
        • 2.Qa1
          • 2...Kc4
            • 3.Qd4#
        • 2.Qa2
          • 2...Kc3
            • 3.Qb3#
      • 1...b4
        • 2.Qa2+
          • 2...Kc3
            • 3.Sa4#
            • 3.Rd3#
            • 3.Qb3#
          • 2...Kb5
            • 3.Qa6#
          • 2...b3
            • 3.Qxb3#
        • 2.Qa4
          • 2...Kc3
            • 3.Qb3#
      • 1...Kc3!
    • 1.Qd5+?
      • 1...Kc3
        • 2.Qb3#
      • 1...Kb4!
    • 1.Qa2+?
      • 1...Kb4
        • 2.Rd5
          • 2...Kc3
            • 3.Qb3#
      • 1...Kxc5!
    • 1.Qa5?
      • 1...Kxc5
        • 2.Rc8+
          • 2...Kd4
            • 3.Qd2#
            • 3.Qc3#
          • 2...Kd6
            • 3.Qc7#
            • 3.Qd8#
      • 1...b4!
  • Keys
    • 1.Rd3!
      • 1...Kb4
        • 2.Qa3+
          • 2...Kc4
            • 3.Qc3#
      • 1...Kxc5
        • 2.Rc3+
          • 2...Kb4
            • 3.Qa3#
          • 2...Kd4
            • 3.Qh8#
          • 2...Kb6
            • 3.Rc6#
          • 2...Kd6
            • 3.Qd8#
      • 1...b4
        • 2.Qa6+
          • 2...Kxc5
            • 3.Rd5#


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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).