Problem Display
PID: 77842 (7K/8/8/8/4N3/3p4/B5Q1/k7 w - - 0 1)

Agapov, Igor Alexeyevich

Schach, 1988

7K/8/8/8/4N3/3p4/B5Q1/k7

#3

4 + 2


SOLUTION


  • SOUND
  • Tries
    • 1.Bb3?
      • threat
        • 2.Qa2#
      • 1...Kb1
        • 2.Qa2+
          • 2...Kc1
            • 3.Qa1#
        • 2.Qd2
          • 2...Ka1
            • 3.Qc1#
            • 3.Qa2#
      • 1...d2!
    • 1.Bc4?
      • threat
        • 2.Qa2#
      • 1...Kb1
        • 2.Qd2
          • 2...Ka1
            • 3.Qc1#
            • 3.Qa2#
      • 1...d2!
    • 1.Bd5?
      • threat
        • 2.Qa2#
      • 1...Kb1
        • 2.Qd2
          • 2...Ka1
            • 3.Qc1#
            • 3.Qa2#
      • 1...d2!
    • 1.Be6?
      • threat
        • 2.Qa2#
      • 1...Kb1
        • 2.Qd2
          • 2...Ka1
            • 3.Qc1#
            • 3.Qa2#
      • 1...d2!
    • 1.Bf7?
      • threat
        • 2.Qa2#
      • 1...Kb1
        • 2.Qd2
          • 2...Ka1
            • 3.Qc1#
            • 3.Qa2#
      • 1...d2!
    • 1.Bg8?
      • threat
        • 2.Qa2#
      • 1...Kb1
        • 2.Qd2
          • 2...Ka1
            • 3.Qc1#
            • 3.Qa2#
      • 1...d2!
    • 1.Qf1+?
      • 1...Kb2
        • 2.Qb1+
          • 2...Ka3
            • 3.Qb3#
      • 1...Kxa2!
    • 1.Qh1+?
      • 1...Kb2
        • 2.Qb1+
          • 2...Ka3
            • 3.Qb3#
      • 1...Kxa2!
    • 1.Qg1+?
      • 1...Kb2
        • 2.Qb1+
          • 2...Ka3
            • 3.Qb3#
      • 1...Kxa2!
    • 1.Qg8?
      • threat
        • 2.Qb3
          • 2...d2
            • 3.Qb1#
      • 1...Kb2
        • 2.Qb3+
          • 2...Ka1
            • 3.Qb1#
          • 2...Kc1
            • 3.Qb1#
      • 1...d2!
  • Keys
    • 1.Sd2!
      • threat
        • 2.Sb3#
      • 1...Kxa2
        • 2.Qb7
          • 2...Ka1
            • 3.Qb1#
          • 2...Ka3
            • 3.Qb3#
      • 1...Kb2
        • 2.Sc4+
          • 2...Ka1
            • 3.Qb2#
          • 2...Kc1
            • 3.Qd2#
          • 2...Kc3
            • 3.Qb2#

FEATURES


NOT CLASSIFIED


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).