MESON Chess Problem Database

Problem Display
PID: 229307 (1QNr4/8/K1B1P3/3P2P1/1P1k1p1b/2npn3/3N4/8 w - - 0 1)

Yudilevich, Yuri Markovich

Tidskrift for Schack, 1911

1QNr4/8/K1B1P3/3P2P1/1P1k1p1b/2npn3/3N4/8

#2

9 + 7

SOLUTION

  • SOUND
  • Keys
    • 1.Sd6!
      • threat
        • 2.Sf3#
      • 1...Ke5
        • 2.Sf3#
      • 1...Rxd6
        • 2.Qh8#
      • 1...Scxd5
        • 2.Sb5#
      • 1...Sexd5
        • 2.Sf5#
      • 1...Sb1
        • 2.Sb5#
      • 1...Scd1
        • 2.Sb5#
      • 1...Sa2
        • 2.Sb5#
      • 1...Se2
        • 2.Sb5#
      • 1...Sa4
        • 2.Sb5#
      • 1...Se4
        • 2.Sb5#
      • 1...Sb5
        • 2.Sxb5#
      • 1...Sed1
        • 2.Sf5#
      • 1...Sf1
        • 2.Sf5#
      • 1...Sc2
        • 2.Sf5#
      • 1...Sg2
        • 2.Sf5#
      • 1...Sc4
        • 2.Sf5#
      • 1...Sg4
        • 2.Sf5#
      • 1...Sf5
        • 2.Sxf5#
      • 1...f3
        • 2.Sxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 19
    • REMOVED MATES = 0
  • Sets
  • Actual
    • S(I);
    • Threat
      • S(A)
    • Vars
      • K(d);S_FLIGHT::S(A)
      • R(g);OGATE,P_PINB(F),XS(I)::QAB(H)
      • S(a);N_GUARD,XP(C)::S(I)
      • S(c);N_GUARD,XP(C)::S(I)
      • S(a);N_GUARD::S(I)
      • S(a);N_GUARD::S(I),XS(a)
      • S(c);N_GUARD::S(I)
      • S(c);N_GUARD::S(I),XS(c)
      • P(e);::S(A),XP(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).