MESON Chess Problem Database

Problem Display
PID: 96993 (KB1R4/4p1P1/1QNN2p1/R1Pk1pP1/1p2b3/n1pp1p1q/n7/8 w - - 0 1)

Szoghy, Jozsef

Problemas, 1979

KB1R4/4p1P1/1QNN2p1/R1Pk1pP1/1p2b3/n1pp1p1q/n7/8

#2

10 + 12

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.g8Q#
      • 2.g8B#
    • 1...exd6
      • 2.g8Q#
      • 2.g8B#
    • 1...e5
      • 2.g8Q#
      • 2.g8B#
  • Tries
    • 1.Sxe7+?
      • 1...Kd4+
        • 2.c6#
      • 1...Ke5+
        • 2.Sb7#
      • 1...Ke6+!
    • 1.Sc4+?
      • 1...Ke6
        • 2.g8Q#
        • 2.g8B#
      • 1...Kxc4!
    • 1.Sb5+?
      • 1...Ke6
        • 2.g8Q#
        • 2.g8B#
      • 1...Kc4!
    • 1.Sb7+?
      • 1...Ke6
        • 2.g8Q#
        • 2.g8B#
      • 1...Kc4!
    • 1.Sc8+?
      • 1...Ke6
        • 2.g8Q#
        • 2.g8B#
      • 1...Kc4!
    • 1.Se8+?
      • 1...Ke6
        • 2.g8Q#
        • 2.g8B#
      • 1...Kc4!
  • Keys
    • 1.Se5!
      • threat
        • 2.Sdc4#
        • 2.Sb5#
        • 2.Sxf5#
        • 2.Sb7#
        • 2.Sdf7#
        • 2.Sc8#
        • 2.Se8#
      • 1...Kd4+
        • 2.c6#
      • 1...Kxe5+
        • 2.Sb7#
      • 1...Ke6+
        • 2.Sxe4#
      • 1...exd6
        • 2.Qxd6#
      • 1...Qh8
        • 2.Se8#
      • 1...Sc4
        • 2.Sdxc4#
      • 1...Sb5
        • 2.Sxb5#
      • 1...f4
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • K(i);P_PINS(E),S_FLIGHT::P=Q
    • P(l);N_GUARD,P_SPINP(l),XS(F)::P=Q
    • P(l);N_GUARD::P=Q
  • Tries
    • Try
      • S(E);CHECK,XP(l)
      • Vars
        • K(i);CHECK,P-FLIGHT::QAB(D)+P(B)
        • K(i);CHECK,P-FLIGHT::B(I)+S(F)
      • Refutation
        • K(i);CHECK,S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(i);P_PINS(E),S_FLIGHT::P=Q
      • Refutation
        • K(i);P_PINS(E),S_FLIGHT,XS(F)
    • Try
      • S(F);CHECK
      • Vars
        • K(i);P_PINS(E),S_FLIGHT::P=Q
      • Refutation
        • K(i);P_PINS(E),S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(i);S_FLIGHT::P=Q
      • Refutation
        • K(i);S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(i);P_PINS(E),S_FLIGHT::P=Q
      • Refutation
        • K(i);P_PINS(E),S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(i);P_PINS(E),S_FLIGHT::P=Q
      • Refutation
        • K(i);P_PINS(E),S_FLIGHT
  • Actual
    • S(E);
    • Threat
      • DUALS(7)
    • Vars
      • K(i);CHECK,P-FLIGHT::QAB(D)+P(B)
      • K(i);CHECK,P-FLIGHT,XS(E)::B(I)+S(F)
      • K(i);CHECK,S_FLIGHT::QAR(D)+S(F),XB(h)
      • P(l);OGATE,P_SPINP(l),XS(F)::QAR1(D),XP(l)
      • Q(f);::R(J)+S(F)
      • S(b);::R(J)+S(F),XS(b)
      • P(j);::R(J)+S(F)
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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).