Problem Display
PID: 197071 (8/1K6/8/8/P3Q3/kN6/8/8 w - - 0 1)

Matrenin, Mikhail Vasilevich

Zadachi i Etyudi, 1996

8/1K6/8/8/P3Q3/kN6/8/8

#3

4 + 1


SOLUTION


  • SOUND
  • Tries
    • 1.Sd2?
      • 1...Ka2
        • 2.Qb1+
          • 2...Ka3
            • 3.Qb3#
        • 2.Qc2+
          • 2...Ka1
            • 3.Sb3#
            • 3.Qb1#
          • 2...Ka3
            • 3.Qb3#
        • 2.Qb4
          • 2...Ka1
            • 3.Qa3#
            • 3.Qb1#
      • 1...Kb2!
    • 1.Sa5?
      • 1...Ka2
        • 2.Qc2+
          • 2...Ka1
            • 3.Sb3#
          • 2...Ka3
            • 3.Qb3#
      • 1...Kb2!
    • 1.Sc5?
      • 1...Ka2
        • 2.Qc2+
          • 2...Ka1
            • 3.Sb3#
          • 2...Ka3
            • 3.Qb3#
      • 1...Kb2!
    • 1.Qb1?
      • 1...Kxa4
        • 2.Sd4
          • 2...Ka3
            • 3.Qb3#
          • 2...Ka5
            • 3.Qb5#
        • 2.Sc5+
          • 2...Ka3
            • 3.Qb3#
          • 2...Ka5
            • 3.Qb6#
      • 1...Kb4!
    • 1.Qc2?
      • 1...Kb4
        • 2.Sd4
          • 2...Ka3
            • 3.Qb3#
          • 2...Ka5
            • 3.Sc6#
        • 2.Sc5
          • 2...Ka3
            • 3.Qb3#
          • 2...Ka5
            • 3.Qd2#
            • 3.Qc3#
      • 1...Kxa4!
  • Keys
    • 1.Sd4!
      • 1...Ka2
        • 2.Qc2+
          • 2...Ka1
            • 3.Sb3#
          • 2...Ka3
            • 3.Qb3#
      • 1...Kb2
        • 2.Qc2+
          • 2...Ka1
            • 3.Sb3#
          • 2...Ka3
            • 3.Qb3#
      • 1...Kxa4
        • 2.Qb1
          • 2...Ka3
            • 3.Qb3#
          • 2...Ka5
            • 3.Qb5#
        • 2.Qe7
          • 2...Ka5
            • 3.Qa3#
      • 1...Kb4
        • 2.Qc2
          • 2...Ka3
            • 3.Qb3#
          • 2...Ka5
            • 3.Sc6#

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).