Problem Display
PID: 171546 (8/8/8/2K5/4N3/3P2p1/Q6p/7k w - - 0 1)

Antipov, Viacheslav Pavlovich

Za Ogneypori, 1987

8/8/8/2K5/4N3/3P2p1/Q6p/7k

#3

4 + 3


6490 yacpdb 2018
5454 Near Snap 2022

SOLUTION


  • SOUND
  • Sets
    • 1...g2
      • 2.Qa8
        • 2...g1Q+
          • 3.Sf2#
        • 2...g1B+
          • 3.Sf2#
        • 2...Kg1
          • 3.Qa1#
        • 2...g1S
          • 3.Sf2#
          • 3.Sg3#
        • 2...g1R
          • 3.Sf2#
          • 3.Sg3#
  • Tries
    • 1.Kb4?
      • 1...g2
        • 2.Sg3+
          • 2...Kg1
            • 3.Qa7#
        • 2.Qa8
          • 2...Kg1
            • 3.Qa1#
          • 2...g1Q
            • 3.Sf2#
            • 3.Sg3#
          • 2...g1S
            • 3.Sf2#
            • 3.Sg3#
          • 2...g1B
            • 3.Sd2#
            • 3.Sf2#
            • 3.Sc3#
            • 3.Sg3#
            • 3.Sc5#
            • 3.Sg5#
            • 3.Sd6#
            • 3.Sf6#
          • 2...g1R
            • 3.Sf2#
            • 3.Sg3#
      • 1...Kg1!
    • 1.Kc4?
      • 1...g2
        • 2.Sg3+
          • 2...Kg1
            • 3.Qa7#
        • 2.Qa8
          • 2...Kg1
            • 3.Qa1#
          • 2...g1Q
            • 3.Sf2#
            • 3.Sg3#
          • 2...g1S
            • 3.Sf2#
            • 3.Sg3#
          • 2...g1B
            • 3.Sd2#
            • 3.Sf2#
            • 3.Sc3#
            • 3.Sg3#
            • 3.Sc5#
            • 3.Sg5#
            • 3.Sd6#
            • 3.Sf6#
          • 2...g1R
            • 3.Sf2#
            • 3.Sg3#
      • 1...Kg1!
    • 1.Kd4?
      • 1...g2
        • 2.Qa8
          • 2...g1Q+
            • 3.Sf2#
          • 2...g1B+
            • 3.Sf2#
          • 2...Kg1
            • 3.Qa1#
          • 2...g1S
            • 3.Sf2#
            • 3.Sg3#
          • 2...g1R
            • 3.Sf2#
            • 3.Sg3#
      • 1...Kg1!
    • 1.Kb5?
      • 1...g2
        • 2.Sg3+
          • 2...Kg1
            • 3.Qa7#
        • 2.Qa8
          • 2...Kg1
            • 3.Qa1#
          • 2...g1Q
            • 3.Sf2#
            • 3.Sg3#
          • 2...g1S
            • 3.Sf2#
            • 3.Sg3#
          • 2...g1B
            • 3.Sd2#
            • 3.Sf2#
            • 3.Sc3#
            • 3.Sg3#
            • 3.Sc5#
            • 3.Sg5#
            • 3.Sd6#
            • 3.Sf6#
          • 2...g1R
            • 3.Sf2#
            • 3.Sg3#
      • 1...Kg1!
    • 1.Kd5?
      • 1...g2
        • 2.Sg3+
          • 2...Kg1
            • 3.Qa7#
      • 1...Kg1!
    • 1.Kb6?
      • 1...g2
        • 2.Qa8
          • 2...g1Q+
            • 3.Sf2#
          • 2...g1B+
            • 3.Sf2#
            • 3.Sc5#
          • 2...Kg1
            • 3.Qa1#
          • 2...g1S
            • 3.Sf2#
            • 3.Sg3#
          • 2...g1R
            • 3.Sf2#
            • 3.Sg3#
      • 1...Kg1!
    • 1.Kc6?
      • 1...g2
        • 2.Sg3+
          • 2...Kg1
            • 3.Qa7#
      • 1...Kg1!
    • 1.Kd6?
      • 1...g2
        • 2.Sg3+
          • 2...Kg1
            • 3.Qa7#
        • 2.Qa8
          • 2...Kg1
            • 3.Qa1#
          • 2...g1Q
            • 3.Sf2#
            • 3.Sg3#
          • 2...g1S
            • 3.Sf2#
            • 3.Sg3#
          • 2...g1B
            • 3.Sd2#
            • 3.Sf2#
            • 3.Sc3#
            • 3.Sg3#
            • 3.Sc5#
            • 3.Sg5#
            • 3.Sf6#
          • 2...g1R
            • 3.Sf2#
            • 3.Sg3#
      • 1...Kg1!
    • 1.Qb2?
      • 1...g2
        • 2.Sg3+
          • 2...Kg1
            • 3.Qd4#
        • 2.Qb7
          • 2...g1Q+
            • 3.Sf2#
          • 2...g1B+
            • 3.Sf2#
          • 2...Kg1
            • 3.Qb1#
          • 2...g1S
            • 3.Sf2#
            • 3.Sg3#
          • 2...g1R
            • 3.Sf2#
            • 3.Sg3#
      • 1...Kg1!
    • 1.Qd2?
      • 1...g2
        • 2.Sf2+
          • 2...Kg1
            • 3.Qe1#
        • 2.Sg3+
          • 2...Kg1
            • 3.Qe1#
            • 3.Qe3#
      • 1...Kg1!
    • 1.Qe2?
      • threat
        • 2.Qf1#
      • 1...g2
        • 2.Sf2+
          • 2...Kg1
            • 3.Qe1#
        • 2.Sg3+
          • 2...Kg1
            • 3.Qe1#
            • 3.Qe3#
        • 2.Qf3
          • 2...Kg1
            • 3.Qd1#
      • 1...Kg1!
    • 1.Qf2?
      • threat
        • 2.Sxg3#
        • 2.Qf1#
      • 1...g2
        • 2.Sg3#
      • 1...gxf2!
    • 1.d4?
      • 1...g2
        • 2.Qa8
          • 2...Kg1
            • 3.Qa1#
          • 2...g1Q
            • 3.Sf2#
            • 3.Sg3#
          • 2...g1S
            • 3.Sf2#
            • 3.Sg3#
          • 2...g1B
            • 3.Sd2#
            • 3.Sf2#
            • 3.Sc3#
            • 3.Sg3#
            • 3.Sg5#
            • 3.Sd6#
            • 3.Sf6#
          • 2...g1R
            • 3.Sf2#
            • 3.Sg3#
      • 1...Kg1!
  • Keys
    • 1.Qg8!
      • 1...Kg1
        • 2.Qxg3+
          • 2...Kf1
            • 3.Qf2#
          • 2...Kh1
            • 3.Sf2#
      • 1...Kg2
        • 2.Qxg3+
          • 2...Kf1
            • 3.Qf2#
          • 2...Kh1
            • 3.Sf2#
      • 1...g2
        • 2.Qa8
          • 2...g1Q+
            • 3.Sf2#
          • 2...g1B+
            • 3.Sf2#
          • 2...Kg1
            • 3.Qa1#
          • 2...g1S
            • 3.Sf2#
            • 3.Sg3#
          • 2...g1R
            • 3.Sf2#
            • 3.Sg3#

Anticipated by 28170(1902), 142703(1954), 93474(1980)

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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).