MESON Chess Problem Database

Problem Display
PID: 6628 (8/4p3/b5K1/rn1R2p1/Q1B1k1N1/rn3R2/q4B2/b5N1 w - - 0 1)

Fleck, Ferenc

5th HM., Il Problema, 1932

8/4p3/b5K1/rn1R2p1/Q1B1k1N1/rn3R2/q4B2/b5N1

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf2
      • 2.Sxf2#
    • 1...Be5
      • 2.Rxe5#
    • 1...S3d4
      • 2.Re5#
    • 1...e5
      • 2.Sf6#
  • Tries
    • 1.Rc5?
      • threat
        • 2.Bd3#
        • 2.Bd5#
      • 1...S3d4
        • 2.Re5#
      • 1...S5d4
        • 2.Bd5#
      • 1...Sxc5!
    • 1.Rxg5?
      • threat
        • 2.Bd3#
        • 2.Bd5#
      • 1...Be5
        • 2.Rxe5#
      • 1...S3d4
        • 2.Re5#
      • 1...e5
        • 2.Sf6#
      • 1...S5d4!
  • Keys
    • 1.Rdf5!
      • threat
        • 2.Bd3#
        • 2.Bd5#
      • 1...Be5
        • 2.Rxe5#
      • 1...S3d4
        • 2.Re5#
      • 1...S5d4
        • 2.Re3#
      • 1...e5
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • Q(b);XB(B)::S(F),XQ(b)
    • B(a);N_GUARD::R1(G),XB(a)
    • S(d);S_CUTB(a)::R1(G)
    • P(j);N_GUARD,S_CUTB(a)::S(F)
  • Tries
    • Try
      • R(G);
      • Threat
        • DUALS(2)
      • Vars
        • S(d);S_CUTB(a)::R1(G)
        • S(g);::B(E)
      • Refutation
        • S(d);XR(G)
    • Try
      • R(G);XP(h)
      • Threat
        • DUALS(2)
      • Vars
        • B(a);N_GUARD::R1(G),XB(a)
        • S(d);S_CUTB(a)::R1(G)
        • P(j);N_GUARD,S_CUTB(a)::S(F)
      • Refutation
        • S(g);
  • Actual
    • R(G);
    • Threat
      • DUALS(2)
    • Vars
      • B(a);N_GUARD::R1(G),XB(a)
      • S(d);S_CUTB(a)::R1(G)
      • S(g);SBLOCK::R1(C)
      • P(j);N_GUARD,S_CUTB(a)::S(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).