MESON Chess Problem Database

Problem Display
PID: 243935 (2BB2R1/3N4/3Qq1p1/2nR3p/6kN/6p1/4n1P1/2b4K w - - 0 1)

Fleck, Ferenc

Sinfonie Scacchistiche, 1977

2BB2R1/3N4/3Qq1p1/2nR3p/6kN/6p1/4n1P1/2b4K

#2

9 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sf4
      • 2.Se5#
  • Tries
    • 1.Qxe6+?
      • 1...Kf4
        • 2.Sxg6#
        • 2.Bg5#
        • 2.Bc7#
        • 2.Rf8#
      • 1...Sxe6!
  • Keys
    • 1.Sxg6!
      • threat
        • 2.Sf6#
      • 1...Qxd5
        • 2.Sde5#
      • 1...Qxd7
        • 2.Sf4#
      • 1...Qxg6
        • 2.Sxc5#
      • 1...Sxd7
        • 2.Qxe6#
      • 1...Qe5
        • 2.Sdxe5#
      • 1...Qf5
        • 2.Sde5#
      • 1...Qf6
        • 2.Sxf6#
      • 1...Bb2
        • 2.Rg5#
      • 1...Bg5
        • 2.Rxg5#
      • 1...Se4
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 1
  • Sets
    • S(b);SBLOCK::S(F)
  • Tries
    • Try
      • Q(E);CHECK,XQ(g)
      • Refutation
        • S(e);XQ(E)
  • Actual
    • S(C);XP(h)
    • Threat
      • S(F)
    • Vars
      • Q(g);P_PINP(B),XR(D)::B(G)+S(F),DCHECK
      • Q(g);N_GUARD,P_SPINQ(g),XS(F)::R(I)+S(C)
      • Q(g);P_SPINQ(g),XS(C)::B(G)+S(F),XS(e)
      • S(e);N_GUARD,XS(F)::QAB(E),XQ(g)
      • Q(g);::B(G)+S(F),DCHECK,XQ(g)
      • Q(g);::S(F)
      • B(a);N_GUARD::R1(D)
      • B(a);N_GUARD::R1(D),XB(a)
      • S(e);N_GUARD::QAB(E),XQ(g)
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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).