MESON Chess Problem Database

Problem Display
PID: 12357 (3n4/8/N7/2R1R3/3k4/n7/4K3/8 w - - 0 1)

Sazhin, Vyacheslav Vasilevych

4th HM., Il Duale, 1978-1981

3n4/8/N7/2R1R3/3k4/n7/4K3/8

#2

4 + 3

3296 Shakhmatny zadachi miniaturi 1987

SOLUTION

  • SOUND
  • Tries
    • 1.Kf3?
      • threat
        • 2.Red5#
      • 1...Kd3
        • 2.Red5#
      • 1...Sc4!
    • 1.Sb4?
      • 1...Sb1
        • 2.Sc2#
      • 1...Sc2
        • 2.Sxc2#
      • 1...Sb5
        • 2.Sc2#
      • 1...Sc6
        • 2.Sxc6#
      • 1...Se6
        • 2.Sc6#
      • 1...Sb7
        • 2.Sc6#
      • 1...Sf7
        • 2.Sc6#
      • 1...Sc4!
  • Keys
    • 1.Sc7!
      • 1...Sc4
        • 2.Sb5#
      • 1...Sb1
        • 2.Sb5#
      • 1...Sc2
        • 2.Sb5#
      • 1...Sb5
        • 2.Sxb5#
      • 1...Sc6
        • 2.Se6#
      • 1...Se6
        • 2.Sxe6#
      • 1...Sb7
        • 2.Se6#
      • 1...Sf7
        • 2.Se6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • R1(C)
      • Vars
        • K(b);P-FLIGHT::R(C)
      • Refutation
        • S(a);
    • Try
      • S(D);
      • Vars
        • S(a);N_GUARD::S(D)
        • S(a);N_GUARD::S(D),XS(a)
        • S(c);N_GUARD::S(D),XS(c)
        • S(c);N_GUARD::S(D)
      • Refutation
        • S(a);
  • Actual
    • S(D);
    • Vars
      • S(a);N_GUARD::S(D)
      • S(a);N_GUARD::S(D),XS(a)
      • S(c);N_GUARD::S(D)
      • S(c);N_GUARD::S(D),XS(c)
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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).