MESON Chess Problem Database

Problem Display
PID: 264949 (1b6/3P1PK1/4pR2/2p1k3/2rR3B/1QNr1n2/2B2nN1/8 w - - 0 1)

Fleck, Ferenc

Probleemblad, 1949

1b6/3P1PK1/4pR2/2p1k3/2rR3B/1QNr1n2/2B2nN1/8

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd4
      • 2.Qxe6#
    • 1...Sxd4
      • 2.Qxb8#
    • 1...cxd4
      • 2.Bg3#
  • Tries
    • 1.Qxc4?
      • threat
        • 2.Bg3#
        • 2.Qxc5#
      • 1...Rxc3
        • 2.Bg3#
        • 2.Rxe6#
      • 1...Rxd4
        • 2.Rxe6#
        • 2.Qxe6#
      • 1...Sxd4
        • 2.Qxc5#
      • 1...Sxh4
        • 2.Qxc5#
      • 1...cxd4
        • 2.Bg3#
        • 2.Qxe6#
        • 2.Qc5#
      • 1...Bd6
        • 2.Bg3#
      • 1...Ba7
        • 2.Bg3#
      • 1...Sh1
        • 2.Qxc5#
      • 1...Sh3
        • 2.Qxc5#
      • 1...Se1
        • 2.Qxc5#
      • 1...Sg1
        • 2.Qxc5#
      • 1...Sd2
        • 2.Qxc5#
      • 1...Sh2
        • 2.Qxc5#
      • 1...Sg5
        • 2.Qxc5#
      • 1...Se4!
  • Keys
    • 1.d8S!
      • threat
        • 2.Sc6#
      • 1...Kxd4
        • 2.Sc6#
      • 1...Rdxd4
        • 2.Rxe6#
      • 1...Rcxd4
        • 2.Qxe6#
      • 1...Sxd4
        • 2.Qxb8#
      • 1...cxd4
        • 2.Bg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(d);OGATE,SBLOCK,XR(E)::QAR1(C),XP(g)
    • S(c);SBLOCK,XR(E)::QAB(C),XB(h)
    • P(e);SBLOCK,XR(E)::B(F)
  • Tries
    • Try
      • Q(C);XR(d)
      • Threat
        • DUALS(2)
      • Vars
        • S(c);XR(E)::QAR2(C),XP(e)
        • S(c);XB(F)::QAR2(C),XP(e)
        • B(h);::B(F)
        • S(a);::QAR2(C),XP(e)
        • S(c);::QAR2(C),XP(e)
      • Refutation
        • S(a);
  • Actual
    • P(H);
    • Threat
      • S(H)
    • Vars
      • K(f);S_FLIGHT,XR(E)::S(H)
      • R(b);SBLOCK,XR(E)::R1(G),XP(g)
      • R(d);OGATE,SBLOCK,XR(E)::QAR1(C),XP(g)
      • S(c);SBLOCK,XR(E)::QAB(C),XB(h)
      • P(e);SBLOCK,XR(E)::B(F)
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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).