MESON Chess Problem Database

Problem Display
PID: 141350 (5Q2/3N4/8/3RpN1P/4k3/1b4K1/8/4n3 w - - 0 1)

Makovsky, Karel

Source?, 1888

5Q2/3N4/8/3RpN1P/4k3/1b4K1/8/4n3

#2

6 + 4

14868 Pirnie Collection 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd5
      • 2.Sc5#
  • Tries
    • 1.Sd6+?
      • 1...Ke3
        • 2.Qf2#
      • 1...Kxd5!
    • 1.Qc5?
      • threat
        • 2.Sd6#
      • 1...Kxf5
        • 2.Rxe5#
      • 1...Bxd5!
  • Keys
    • 1.Qc8!
      • threat
        • 2.Sf6#
      • 1...Kxd5
        • 2.Sf6#
      • 1...Kxf5
        • 2.Rxe5#
      • 1...Bxd5
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(b);SBLOCK,XR(B)::S(E)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(c);P-FLIGHT::QAB1(F)
      • Refutation
        • K(c);S_FLIGHT,XR(B)
    • Try
      • Q(F);
      • Threat
        • S(C)
      • Vars
        • K(c);P_SPINP(d),S_FLIGHT,XS(C)::R1(B),XP(d)
      • Refutation
        • B(b);XR(B)
  • Actual
    • Q(F);
    • Threat
      • S(E)
    • Vars
      • K(c);S_FLIGHT,XR(B)::S(E)
      • K(c);P_SPINP(d),S_FLIGHT,XS(C)::R1(B),XP(d)
      • B(b);SBLOCK,XR(B)::S(E)
HTML5 logo

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).