Problem Display
PID: 23546 (8/8/4Q3/8/8/6N1/6k1/4K2R w K - 0 1)

Kashcheev, Niktopolion Pavlovich

Problemista, 1964

8/8/4Q3/8/8/6N1/6k1/4K2R

#2

4 + 1


3296 Shakhmatny zadachi miniaturi 1987
3813 300 Sachmatu Uzdaviniu 1991
5454 Near Snap 2018

SOLUTION


  • SOUND
  • Tries
    • 1.Sh5?
      • threat
        • 2.Qh3#
        • 2.Qd5#
        • 2.Qe4#
        • 2.Qc6#
      • 1...Kf3
        • 2.Qe2#
        • 2.0-0#
      • 1...Kxh1!
    • 1.Rh3?
      • 1...Kf3
        • 2.Qe4#
      • 1...Kg1!
  • Keys
    • 1.Se2!
      • threat
        • 2.Qh3#
        • 2.Qd5#
        • 2.Qe4#
        • 2.Qc6#
      • 1...Kxh1
        • 2.Qh3#
      • 1...Kf3
        • 2.0-0#

This anticipates 89100(1991)

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(4)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • R(B);
      • Vars
        • K(a);S_FLIGHT::QAB1(D)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(C);
    • Threat
      • DUALS(4)
    • Vars
      • K(a);S_FLIGHT,XR(B)::QAR2(D)
      • K(a);S_FLIGHT::0-0


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).