Problem Display
PID: 132976 (8/8/3p4/1p1K1Q2/kp6/8/1P6/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

200 Shakhmatni Zadachi, 1983

8/8/3p4/1p1K1Q2/kp6/8/1P6/8

#3

3 + 4


SOLUTION


  • SOUND
  • Sets
    • 1...Kb3
      • 2.Qb1
        • 2...Ka4
          • 3.Qa2#
  • Tries
    • 1.Kc6?
      • threat
        • 2.Qd5
          • threat
            • 3.Qa2#
          • 2...Ka5
            • 3.Qa2#
            • 3.Qxb5#
          • 2...b3
            • 3.Qxb5#
      • 1...d5
        • 2.Qxd5
          • threat
            • 3.Qa2#
          • 2...Ka5
            • 3.Qa2#
            • 3.Qxb5#
          • 2...b3
            • 3.Qxb5#
      • 1...Kb3!
    • 1.Qd3?
      • 1...b3
        • 2.Kc6
          • threat
            • 3.Qxb5#
          • 2...Kb4
            • 3.Qxb5#
          • 2...Ka5
            • 3.Qxb5#
          • 2...b4
            • 3.Qb5#
            • 3.Qa6#
      • 1...Ka5!
    • 1.Qe4?
      • 1...Kb3
        • 2.Qb1
          • 2...Ka4
            • 3.Qa2#
      • 1...Ka5!
    • 1.Qd7?
      • 1...b3
        • 2.Qa7+
          • 2...Kb4
            • 3.Qa3#
      • 1...Kb3!
    • 1.Qf1?
      • 1...Kb3
        • 2.Qb1
          • 2...Ka4
            • 3.Qa2#
      • 1...b3
        • 2.Kc6
          • threat
            • 3.Qxb5#
          • 2...Kb4
            • 3.Qxb5#
          • 2...Ka5
            • 3.Qxb5#
          • 2...b4
            • 3.Qb5#
            • 3.Qa6#
            • 3.Qa1#
        • 2.Qa1+
          • 2...Kb4
            • 3.Qa3#
      • 1...Ka5!
    • 1.Qf2?
      • 1...b3
        • 2.Qa7+
          • 2...Kb4
            • 3.Qa3#
      • 1...Kb3!
    • 1.Qf7?
      • 1...b3
        • 2.Qa7+
          • 2...Kb4
            • 3.Qa3#
      • 1...Kb3!
  • Keys
    • 1.Qh7!
      • 1...Kb3
        • 2.Qb1
          • 2...Ka4
            • 3.Qa2#
      • 1...b3
        • 2.Qa7+
          • 2...Kb4
            • 3.Qa3#

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).