MESON Chess Problem Database

Problem Display
PID: 143266 (4Q3/Rq3N2/r4k2/3n1p2/r4p2/4pN2/Bb4R1/2B4K w - - 0 1)

Dulcsan, Geza

Fleck, Ferenc

Magyar Sakkvilag, 1930

4Q3/Rq3N2/r4k2/3n1p2/r4p2/4pN2/Bb4R1/2B4K

#2

8 + 9

35 L'Italia Scacchistica 1930

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf7
      • 2.Rxf7#
      • 2.Qxf7#
    • 1...Sc3
      • 2.Qe5#
    • 1...Sb4
      • 2.Bxb2#
    • 1...Sb6
      • 2.Qe6#
    • 1...Sc7
      • 2.Qd8#
    • 1...Se7
      • 2.Qh8#
  • Tries
    • 1.Bxb2+?
      • 1...Rd4
        • 2.Bxd4#
      • 1...Sc3
        • 2.Qe5#
      • 1...Qxb2!
  • Keys
    • 1.Sh4!
      • threat
        • 2.Rg6#
      • 1...Qxf7
        • 2.Rxf7#
      • 1...Sc3
        • 2.Qe5#
      • 1...Sb4
        • 2.Bxb2#
      • 1...Sb6
        • 2.Qe6#
      • 1...Sc7
        • 2.Qd8#
      • 1...Se7
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(e);S_CUTB(a)::QAB1(H)
    • S(e);N_GUARD,S_CUTQ(i),S_CUTR(c)::B(A),XB(a)
    • S(e);S_CUTR(g)::QAR1(H)
    • S(e);N_GUARD,S_CUTQ(i)::QAB(H)
    • S(e);SBLOCK::QAB(H)
  • Tries
    • Try
      • B(A);CHECK,XB(a)
      • Vars
        • R(c);N_GUARD,P_SPINR(c)::B(A),XR(c)
        • S(e);P_SPINS(e)::QAB1(H)
      • Refutation
        • Q(i);XB(A)
  • Actual
    • S(E);
    • Threat
      • R1(D)
    • Vars
      • Q(i);OGATE,XS(G)::R1(F),XQ(i)
      • S(e);P_PINR(D),S_CUTB(a)::QAB1(H)
      • S(e);N_GUARD,P_PINR(D),S_CUTQ(i),S_CUTR(c)::B(A),XB(a)
      • S(e);P_PINR(D),S_CUTR(g)::QAR1(H)
      • S(e);N_GUARD,P_PINR(D),S_CUTQ(i)::QAB(H)
      • S(e);P_PINR(D),SBLOCK::QAB(H)
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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).