MESON Chess Problem Database

Problem Display
PID: 70766 (4nRN1/8/8/3PNPp1/1P2k3/2K3Qb/B4p2/8 w - - 0 1)

Kisis, Imants J

4th Prize, Sachsische Zeitung, 1977

4nRN1/8/8/3PNPp1/1P2k3/2K3Qb/B4p2/8

#2

9 + 5

SOLUTION

  • SOUND
  • Tries
    • 1.Sd3?
      • threat
        • 2.Sxf2#
        • 2.Sc5#
      • 1...f1Q
        • 2.Sc5#
      • 1...f1S
        • 2.Sf2#
        • 2.Sc5#
      • 1...f1B
        • 2.Sf2#
        • 2.Sc5#
      • 1...f1R
        • 2.Sc5#
      • 1...Sf6!
    • 1.Sf3?
      • threat
        • 2.Sd2#
        • 2.Sxg5#
      • 1...Ke3
        • 2.Rxe8#
      • 1...f1S
        • 2.Sxg5#
      • 1...g4
        • 2.Sd2#
        • 2.Sg5#
      • 1...Sf6!
    • 1.Sc4?
      • threat
        • 2.Sd2#
      • 1...Kxd5
        • 2.Qf3#
      • 1...Sf6
        • 2.Sd6#
      • 1...f1S!
    • 1.Sf6+?
      • 1...Kxf5
        • 2.Bb1#
      • 1...Sxf6!
  • Keys
    • 1.Sf7!
      • threat
        • 2.Sxg5#
      • 1...Kxf5
        • 2.Bb1#
      • 1...Sf6
        • 2.Sd6#
      • 1...g4
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • P(a);::S(F)
      • Refutation
        • S(e);
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);P-FLIGHT::R(H),XS(e)
        • P(a);::S(F),XP(d)
      • Refutation
        • S(e);
    • Try
      • S(F);
      • Threat
        • S(F)
      • Vars
        • K(c);S_FLIGHT,XP(E)::QAB(C)
        • S(e);N_GUARD::S(F)
      • Refutation
        • P(a);
    • Try
      • S(I);CHECK
      • Vars
        • K(c);S_FLIGHT,XP(G)::B(A)
      • Refutation
        • S(e);XS(I)
  • Actual
    • S(F);
    • Threat
      • S(F),XP(d)
    • Vars
      • K(c);S_FLIGHT,XP(G)::B(A)
      • S(e);N_GUARD::S(F)
      • P(d);::S(F)
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).