MESON Chess Problem Database

Problem Display
PID: 190 (b3K3/b1p1pN2/2n1r3/5kPB/r2Q2RP/3P1nq1/1B2P1N1/8 w - - 0 1)

Fleck, Ferenc

4th Prize, L'Italia Scacchistica, 1950

b3K3/b1p1pN2/2n1r3/5kPB/r2Q2RP/3P1nq1/1B2P1N1/8

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qe1
      • 2.Rf4#
    • 1...Qf2
      • 2.Rf4#
    • 1...Qf4
      • 2.Rxf4#
    • 1...Qxg2
      • 2.Rf4#
    • 1...Qh3
      • 2.Rf4#
    • 1...Sfe5
      • 2.e4#
    • 1...Sce5
      • 2.Se3#
  • Keys
    • 1.Qd7!
      • threat
        • 2.Sh6#
      • 1...Rd4
        • 2.Se3#
      • 1...Bd4
        • 2.e4#
      • 1...Sfd4
        • 2.e4#
      • 1...Scd4
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • Q(b);N_GUARD::R1(F)
    • Q(b);N_GUARD::R1(F),XQ(b)
    • Q(b);N_GUARD,XS(C)::R1(F)
    • S(a);S_CUTR(f)::P(B)
    • S(e);S_CUTR(f)::S(C)
  • Actual
    • Q(E);P_PINR(f)
    • Threat
      • S(J)
    • Vars
      • R(c);S_CUTB(g)::S(C)
      • B(g);S_CUTR(c)::P(B)
      • S(a);S_CUTR(c)::P(B)
      • S(e);S_CUTB(g)::S(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).