MESON Chess Problem Database

Problem Display
PID: 6664 (2N1n1B1/1KP2q2/R7/R1bk1p2/2Nnr2r/1P5p/2p1pB2/3Q4 w - - 0 1)

Fleck, Ferenc

3rd Prize, Nederlandse Bond van Probleemvrienden, 1932

2N1n1B1/1KP2q2/R7/R1bk1p2/2Nnr2r/1P5p/2p1pB2/3Q4

#2

10 + 11

1577 Jaarboek 1932

SOLUTION

  • SOUND
  • Sets
    • 1...Qe6
      • 2.S8b6#
      • 2.Se7#
    • 1...Sd6+
      • 2.Rxd6#
    • 1...Sf6
      • 2.Rd6#
    • 1...Sxc7
      • 2.Rd6#
    • 1...Sg7
      • 2.Rd6#
  • Keys
    • 1.Qh1!
      • threat
        • 2.Se7#
      • 1...Sd6+
        • 2.Rxd6#
      • 1...Sxb3
        • 2.Bxf7#
      • 1...Sc6
        • 2.Bxf7#
      • 1...Sf3
        • 2.Rxc5#
      • 1...Sb5
        • 2.Bxf7#
      • 1...Se6
        • 2.S8b6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • S(k);CHECK,N_GUARD::R1(F),XS(k)
    • S(k);N_GUARD::R1(F)
    • S(k);N_GUARD,XP(H)::R1(F)
  • Actual
    • Q(A);N_PINS(d),P_PINR(e)
    • Threat
      • S(I)
    • Vars
      • S(k);CHECK,N_GUARD::R1(F),XS(k)
      • S(d);N_GUARD,XP(C)::B(J),XQ(j)
      • S(d);N_GUARD::B(J),XQ(j)
      • S(d);N_SPINR(e)::R1(E),XB(g)
      • S(d);N_GUARD,N_SPINB(g)::B(J),XQ(j)
      • S(d);N_SPINQ(j),SBLOCK::S(I)
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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).