MESON Chess Problem Database

Problem Display
PID: 243882 (3R4/8/b5B1/4p1n1/1P1pPq1b/P2kN1p1/R1N3Qp/4Bn1K w - - 0 1)

Fleck, Ferenc

Magyar Sakkvilag, 1934

3R4/8/b5B1/4p1n1/1P1pPq1b/P2kN1p1/R1N3Qp/4Bn1K

#2

11 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sd2
      • 2.Qxd2#
    • 1...Sf3
      • 2.Qxf1#
  • Keys
    • 1.Sxd4!
      • threat
        • 2.Sdc2#
        • 2.Sdf5#
        • 2.Qe2#
      • 1...Kxe3
        • 2.Sc2#
      • 1...Qxe3
        • 2.Qc2#
      • 1...Qxe4
        • 2.Sdc2#
      • 1...Sxe3
        • 2.Qe2#
      • 1...Sxe4
        • 2.Qe2#
      • 1...exd4
        • 2.Qe2#
      • 1...Sd2
        • 2.Qxd2#
      • 1...Qf2
        • 2.Sdf5#
      • 1...Qf3
        • 2.Sdc2#
      • 1...Qg4
        • 2.Sdf5#
      • 1...Qf5
        • 2.Sdxf5#
      • 1...Qf6
        • 2.Qe2#
      • 1...Qf7
        • 2.Qe2#
      • 1...Qf8
        • 2.Qe2#
      • 1...Bc4
        • 2.Qe2#
      • 1...Bb5
        • 2.Qe2#
      • 1...Bb7
        • 2.Qe2#
      • 1...Bc8
        • 2.Qe2#
      • 1...Sf3
        • 2.Qe2#
      • 1...Sh3
        • 2.Qe2#
      • 1...Se6
        • 2.Qe2#
      • 1...Sf7
        • 2.Qe2#
      • 1...Sh7
        • 2.Qe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 21
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::QAR1(E),XS(a)
    • S(i);S_CUTQ(f)::QAB(E),XS(a)
  • Actual
    • S(D);XP(e)
    • Threat
      • DUALS(3)
    • Vars
      • K(c);P-FLIGHT,XS(G)::S(D)
      • Q(f);SBLOCK,XS(G)::QAB1(E)
      • Q(f);P_PINQ(E),P_SPINQ(f),XP(I)::R(K)+S(D)
      • S(a);XS(G)::QAB1(E)
      • S(i);P_SPINS(i),XP(I)::QAB1(E)
      • P(h);P_SPINP(h),XS(D)::QAB1(E)
      • S(a);N_GUARD::QAR1(E),XS(a)
      • Q(f);::R(K)+S(D)
      • Q(f);P_PINQ(E)::R(K)+S(D)
      • Q(f);::R(K)+S(D),XQ(f)
      • Q(f);::QAB1(E)
      • B(j);::QAB1(E)
      • S(i);::QAB1(E)
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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).