MESON Chess Problem Database

Problem Display
PID: 242096 (B6n/4B3/2N3nK/4Pk2/1R5p/6p1/Q3Nr2/4R1r1 w - - 0 1)

Szoghy, Jozsef

Magyar Sakkvilag, 1933

B6n/4B3/2N3nK/4Pk2/1R5p/6p1/Q3Nr2/4R1r1

#2

9 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sf7+
      • 2.Qxf7#
  • Tries
    • 1.Scd4+?
      • 1...Kxe5
        • 2.Rb5#
        • 2.Qd5#
        • 2.Qe6#
        • 2.Qa5#
      • 1...Kg4!
    • 1.Qd5?
      • threat
        • 2.Qd7#
      • 1...Sf7+
        • 2.Qxf7#
      • 1...Sxe5
        • 2.Qxe5#
      • 1...Sf8
        • 2.e6#
      • 1...Sf4!
  • Keys
    • 1.Qg8!
      • threat
        • 2.Qc8#
      • 1...Sf7+
        • 2.Qxf7#
      • 1...Sxe5
        • 2.Scd4#
      • 1...Sxe7
        • 2.Qg4#
      • 1...Sf4
        • 2.Sed4#
      • 1...Sf8
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(g);CHECK,N_GUARD::QAR2(B),XS(g)
  • Tries
    • Try
      • S(F);CHECK
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAB(B)
      • Vars
        • S(g);CHECK,N_GUARD::QAR2(B),XS(g)
        • S(f);OGATE,P_SPINS(f),XP(E)::QAR1(B),XS(f)
        • S(f);N_GUARD::QAR(B)+P(E)
      • Refutation
        • S(f);
  • Actual
    • Q(B);
    • Threat
      • QAB(B)
    • Vars
      • S(g);CHECK,N_GUARD::QAR2(B),XS(g)
      • S(f);SBLOCK,XP(E)::S(F)
      • S(f);OGATE,XB(H)::QAB1(B)
      • S(f);SBLOCK::S(C)
      • S(f);OGATE::QAB1(B)
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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).