MESON Chess Problem Database

Problem Display
PID: 180232 (8/5B2/5b1p/3NpPn1/1N2k1PR/2P3P1/6Pp/K4n1Q w - - 0 1)

Lider, Valentin Viktorovich

The Problemist, 1977

8/5B2/5b1p/3NpPn1/1N2k1PR/2P3P1/6Pp/K4n1Q

#2

11 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sd2
      • 2.Qe1#
    • 1...Se3
      • 2.Sxf6#
    • 1...Sxg3
      • 2.Qb1#
    • 1...Sf3
      • 2.gxf3#
    • 1...Sh3
      • 2.gxh3#
  • Keys
    • 1.Bg6!
      • 1...Sxg3
        • 2.Qb1#
      • 1...Be7
        • 2.f6#
      • 1...Bg7
        • 2.f6#
      • 1...Bd8
        • 2.f6#
      • 1...Bh8
        • 2.f6#
      • 1...Sd2
        • 2.Qe1#
      • 1...Se3
        • 2.Sxf6#
      • 1...Sf3
        • 2.gxf3#
      • 1...Sh3
        • 2.gxh3#
      • 1...Se6
        • 2.fxe6#
      • 1...Sf7
        • 2.g5#
      • 1...Sh7
        • 2.g5#
      • 1...h5
        • 2.gxh5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • S(a);OGATE::QAR(B)
    • S(a);SBLOCK::S(I),XB(f)
    • S(a);OGATE,XP(E)::QAB(B)
    • S(e);OGATE::P(C),XS(e)
    • S(e);OGATE::QAB(B)+P(C),XS(e)
  • Actual
    • B(K);
    • Vars
      • S(a);OGATE,XP(E)::QAB(B)
      • B(f);OGATE::B(K)+P(J)
      • S(a);OGATE::QAR(B)
      • S(a);SBLOCK::S(I),XB(f)
      • S(e);OGATE::P(C),XS(e)
      • S(e);OGATE::QAB(B)+P(C),XS(e)
      • S(e);OGATE::B(K)+P(J),XS(e)
      • S(e);OGATE::R(H)+P(G)
      • P(g);OGATE::R(H)+P(G),XP(g)
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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).