MESON Chess Problem Database

Problem Display
PID: 45475 (3B1QR1/3K1pq1/1R1n1Nkb/6N1/4rrPP/8/2B1n3/8 w - - 0 1)

Paros, Gyorgy

3rd HM., BCF 051. Ty., 1945-1946

3B1QR1/3K1pq1/1R1n1Nkb/6N1/4rrPP/8/2B1n3/8

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bxg5
      • 2.Qxg7#
    • 1...Sc4
      • 2.Qxf7#
    • 1...Sb5
      • 2.Qxf7#
    • 1...Sf5
      • 2.Qxf7#
    • 1...Sb7
      • 2.Qxf7#
    • 1...Sc8
      • 2.Qxf7#
    • 1...Se8
      • 2.Qxf7#
  • Keys
    • 1.Sd5!
      • threat
        • 2.h5#
      • 1...f5+
        • 2.Qf7#
      • 1...f6+
        • 2.Se7#
      • 1...Rxg4
        • 2.Qxf7#
      • 1...Bxg5
        • 2.Qxg7#
      • 1...Rf6
        • 2.Se7#
      • 1...Sg3
        • 2.Sxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 6
  • Sets
    • B(f);N_GUARD,XS(D)::QAR1(I),XQ(h)
    • S(d);N_GUARD::QAB1(I),XP(g)
    • S(d);N_GUARD,N_SPINR(b)::QAB1(I),XP(g)
  • Actual
    • S(F);P_PINS(d)
    • Threat
      • P(C)
    • Vars
      • P(g);CHECK,N_SPINR(b),S_CUTR(c)::QAB1(I)
      • P(g);CHECK,N_SPINS(d)::S(F)
      • R(c);N_GUARD,XP(B)::QAB1(I),XP(g)
      • B(f);N_GUARD,XS(D)::QAR1(I),XQ(h)
      • R(c);N_SPINS(d),SBLOCK::S(F)
      • S(a);N_GUARD::S(F),XR(c)
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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).