Problem Display
PID: 253771 (8/7Q/8/4N3/8/p1p1K3/8/2kN4 w - - 0 1)

Gnatina, Miron

2nd Prize, East German Chess Federation, 1987

8/7Q/8/4N3/8/p1p1K3/8/2kN4

#3

4 + 3


6490 yacpdb 2021

SOLUTION


  • SOUND
  • Sets
    • 1...Kxd1
      • 2.Qb1#
  • Tries
    • 1.Sxc3?
      • threat
        • 2.Qb1#
      • 1...a2
        • 2.Qh2
          • threat
            • 3.Sd3#
            • 3.Qd2#
      • 1...Kb2!
    • 1.Qd3?
      • 1...a2
        • 2.Qxc3+
          • 2...Kb1
            • 3.Qb2#
          • 2...Kxd1
            • 3.Qd2#
      • 1...c2!
    • 1.Qh2?
      • threat
        • 2.Sxc3
          • 2...a2
            • 3.Sd3#
            • 3.Qd2#
        • 2.Qa2
          • 2...Kxd1
            • 3.Qb1#
          • 2...c2
            • 3.Qa1#
      • 1...Kb1
        • 2.Sxc3+
          • 2...Ka1
            • 3.Qa2#
          • 2...Kc1
            • 3.Sd3#
            • 3.Qd2#
      • 1...Kxd1
        • 2.Kd3
          • threat
            • 3.Qg1#
            • 3.Qh1#
          • 2...Kc1
            • 3.Qc2#
          • 2...Ke1
            • 3.Qg1#
            • 3.Qe2#
        • 2.Sd3
          • threat
            • 3.Qe2#
      • 1...a2
        • 2.Sxc3
          • threat
            • 3.Sd3#
            • 3.Qd2#
        • 2.Qxa2
          • 2...Kxd1
            • 3.Qb1#
          • 2...c2
            • 3.Qa1#
      • 1...c2!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Sxa3
          • threat
            • 3.Qb1#
            • 3.Qc2#
          • 2...Kxd1
            • 3.Qb1#
            • 3.Qh1#
          • 2...c2
            • 3.Qxc2#
      • 1...c2
        • 2.Sc3
          • 2...a2
            • 3.Qh1#
      • 1...a2
        • 2.Sa3
          • threat
            • 3.Qc2#
          • 2...Kxd1
            • 3.Qh1#
          • 2...a1S
            • 3.Qb1#
          • 2...c2
            • 3.Qxc2#

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).