MESON Chess Problem Database

Problem Display
PID: 43622 (5B2/3RNnp1/7b/P1kP4/1R2pq2/KP6/1PB1P3/2Q5 w - - 0 1)

Fleck, Ferenc

De Problemist, 1930

5B2/3RNnp1/7b/P1kP4/1R2pq2/KP6/1PB1P3/2Q5

#2

12 + 6

35 L'Italia Scacchistica 1930

SOLUTION

  • SOUND
  • Sets
    • 1...Se5
      • 2.Sf5#
    • 1...Sd6
      • 2.Rc7#
    • 1...e3
      • 2.Be4#
  • Tries
    • 1.Rb5+?
      • 1...Kd4
        • 2.Sc6#
      • 1...Kxb5!
    • 1.Qxf4?
      • threat
        • 2.Rc7#
        • 2.Qc7#
      • 1...Se5
        • 2.Sf5#
        • 2.Sc6#
        • 2.Sg6#
        • 2.Sc8#
        • 2.Sg8#
      • 1...Sd6
        • 2.Rc7#
        • 2.Qxd6#
      • 1...Sd8
        • 2.Sf5#
        • 2.Sc6#
        • 2.Sg6#
        • 2.Sc8#
        • 2.Sg8#
        • 2.Qd6#
      • 1...Bxf4!
  • Keys
    • 1.Ka4!
      • threat
        • 2.Rc4#
      • 1...Se5
        • 2.Sf5#
      • 1...Sd6
        • 2.Rc7#
      • 1...e3
        • 2.Be4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(e);N_GUARD,S_CUTQ(b)::B(L)+S(K)
    • S(e);SBLOCK,S_CUTQ(b)::R(J)
    • P(a);S_CUTQ(b)::QAR(A)+B(C)
  • Tries
    • Try
      • R(G);CHECK
      • Vars
        • K(c);S_FLIGHT::S(K)
      • Refutation
        • K(c);P-FLIGHT,XR(G)
    • Try
      • Q(A);XQ(b)
      • Threat
        • DUALS(2)
      • Refutation
        • B(d);XQ(A)
  • Actual
    • K(E);P-FLIGHT
    • Threat
      • R1(G)
    • Vars
      • S(e);N_GUARD,S_CUTQ(b)::B(L)+S(K)
      • S(e);SBLOCK,S_CUTQ(b)::R(J)
      • P(a);P_PINR(G),S_CUTQ(b)::QAR(A)+B(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).