MESON Chess Problem Database

Problem Display
PID: 243889 (3qRbN1/2pPpP2/2P1k1P1/Rp1n1n2/NQ1PPP1B/8/2b5/KB6 w - - 0 1)

Fleck, Ferenc

Nepszava, 1938

3qRbN1/2pPpP2/2P1k1P1/Rp1n1n2/NQ1PPP1B/8/2b5/KB6

#2

15 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qc8
      • 2.dxc8Q#
      • 2.dxc8B#
    • 1...Bd1
      • 2.exf5#
    • 1...Bb3
      • 2.exf5#
    • 1...Bxa4
      • 2.exf5#
    • 1...Sd6
      • 2.Sc5#
    • 1...bxa4
      • 2.exd5#
  • Keys
    • 1.Bxe7!
      • threat
        • 2.Sc5#
      • 1...Qxe7
        • 2.d8S#
      • 1...Bxa4
        • 2.exf5#
      • 1...Bxe7
        • 2.f8S#
      • 1...Sdxe7
        • 2.d5#
      • 1...Sfxe7
        • 2.f5#
      • 1...bxa4
        • 2.exd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • Q(h);OGATE::PXQ(h)=Q
    • B(a);N_GUARD::P(F),XS(d)
    • B(a);N_GUARD,XS(C)::P(F),XS(d)
    • S(d);SBLOCK::S(C)
    • P(b);XS(C)::P(F),XS(c)
  • Actual
    • B(H);XP(g)
    • Threat
      • S(C)
    • Vars
      • Q(h);OGATE,P_SPINQ(h),XB(H)::P=S
      • B(a);N_GUARD,XS(C)::P(F),XS(d)
      • B(i);OGATE,P_SPINB(i),XB(H)::P=S
      • S(c);OGATE,P_SPINS(c),XB(H)::P(E)
      • S(d);OGATE,P_SPINS(d),XB(H)::P(G)
      • P(b);XS(C)::P(F),XS(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).