MESON Chess Problem Database

Problem Display
PID: 240122 (4R3/2p2P1p/2P1nb1N/2pK1P2/3p1kNQ/2rP1p1R/3Pn1pP/3Bq1r1 w - - 0 1)

Zilahi, Zoltan

Nepszava, 1939

4R3/2p2P1p/2P1nb1N/2pK1P2/3p1kNQ/2rP1p1R/3Pn1pP/3Bq1r1

#2

13 + 13

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd1
      • 2.Sxf6#
    • 1...Qf1
      • 2.Sxf6#
    • 1...Be5
      • 2.Sf2#
    • 1...Bg7
      • 2.Sf2#
    • 1...Bh8
      • 2.Sf2#
    • 1...Sc1
      • 2.Rxf3#
    • 1...Sg3
      • 2.Sxf6#
    • 1...Sg5
      • 2.Sf2#
    • 1...Sg7
      • 2.Re4#
    • 1...Sd8
      • 2.Re4#
    • 1...Sf8
      • 2.Re4#
    • 1...f2
      • 2.Sxf6#
  • Keys
    • 1.f8S!
      • threat
        • 2.Sxe6#
      • 1...Sxf8
        • 2.Re4#
      • 1...Sc1
        • 2.Rxf3#
      • 1...Sg3
        • 2.Sxf6#
      • 1...Sg5
        • 2.Sf2#
      • 1...Sg7
        • 2.Re4#
      • 1...Sd8
        • 2.Re4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • Q(a);N_GUARD,XB(A)::QAR(G)+S(F),XB(k)
    • Q(a);N_GUARD::QAR(G)+S(F),XB(k)
    • B(k);N_GUARD::QAR(G)+S(F)
    • S(c);::R1(E),XP(f)
    • S(c);S_CUTQ(a)::QAR(G)+S(F),XB(k)
    • S(j);S_CUTB(k)::QAR(G)+S(F)
    • S(j);OGATE::R1(M)
    • P(f);S_CUTQ(a)::QAR(G)+S(F),XB(k)
  • Actual
    • P(L);
    • Threat
      • S(L),XS(j)
    • Vars
      • S(j);OGATE,XS(L)::R1(M)
      • S(c);::R1(E),XP(f)
      • S(c);S_CUTQ(a)::QAR(G)+S(F),XB(k)
      • S(j);S_CUTB(k)::QAR(G)+S(F)
      • S(j);OGATE::R1(M)
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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).