MESON Chess Problem Database

Problem Display
PID: 41239 (3K1b1B/1Q4rr/1p1p2pp/4k3/R1nN1NnR/p1P1p1Pb/qp5p/8 w - - 0 1)

Szoghy, Jozsef

Moszkvai sakkverseny, 1936

3K1b1B/1Q4rr/1p1p2pp/4k3/R1nN1NnR/p1P1p1Pb/qp5p/8

#2

9 + 16

SOLUTION

  • SOUND
  • Sets
    • 1...Be7+
      • 2.Qxe7#
    • 1...Sf6
      • 2.Sd3#
  • Tries
    • 1.Bxg7+?
      • 1...Bxg7
        • 2.Qe7#
      • 1...Sf6
        • 2.Sd3#
        • 2.Sxg6#
        • 2.Qd5#
      • 1...Rxg7!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Qe6#
      • 1...Be7+
        • 2.Qxe7#
      • 1...Ke4
        • 2.Qd5#
      • 1...Sd2
        • 2.Sc6#
      • 1...Sa5
        • 2.Sf3#
      • 1...Sf2
        • 2.Sxg6#
      • 1...Sf6
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(p);CHECK,N_GUARD::QAR2(G),XB(p)
    • S(h);N_SPINR(n),SBLOCK::S(E)
  • Tries
    • Try
      • B(I);CHECK,XR(n)
      • Vars
        • B(p);XB(I)::QAR2(G)
      • Refutation
        • R(o);XB(I)
  • Actual
    • Q(G);
    • Threat
      • QAR1(G)
    • Vars
      • B(p);CHECK,N_GUARD::QAR2(G),XB(p)
      • K(i);N_SPINR(n),P-FLIGHT::QAB1(G)
      • S(g);::S(D)
      • S(h);::S(E),XP(l)
      • S(h);N_SPINR(n)::S(E)
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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).