MESON Chess Problem Database

Problem Display
PID: 117364 (8/B7/1n6/8/2p1P1P1/2PP3P/2RPkNQ1/R6K w - - 0 1)

Lider, Valentin Viktorovich

015. Moscow Championship, 1992

8/B7/1n6/8/2p1P1P1/2PP3P/2RPkNQ1/R6K

#2

12 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sd1+?
      • 1...Ke1
        • 2.Sb2#
        • 2.Se3#
        • 2.Qf2#
      • 1...Kxd3!
    • 1.dxc4?
      • 1...Sa4
        • 2.d3#
      • 1...Sd5
        • 2.d3#
      • 1...Sd7
        • 2.d3#
      • 1...Sa8
        • 2.d3#
      • 1...Sc8
        • 2.d3#
      • 1...Sxc4!
    • 1.e5?
      • 1...cxd3
        • 2.Se4#
      • 1...Sa4
        • 2.Qe4#
      • 1...Sd7
        • 2.Qe4#
      • 1...Sa8
        • 2.Qe4#
      • 1...Sc8
        • 2.Qe4#
      • 1...Sd5!
  • Keys
    • 1.g5!
      • 1...cxd3
        • 2.Sg4#
      • 1...Sa4
        • 2.Qg4#
      • 1...Sd5
        • 2.Qg4#
      • 1...Sd7
        • 2.Qg4#
      • 1...Sa8
        • 2.Qg4#
      • 1...Sc8
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);CHECK
      • Refutation
        • K(a);S_FLIGHT,XP(H)
    • Try
      • P(H);XP(b)
      • Vars
        • S(c);::R(C)+P(D)
      • Refutation
        • S(c);XP(H)
    • Try
      • P(J);
      • Vars
        • P(b);SBLOCK,XP(H)::QAR(F)+S(E)
        • S(c);::QAR2(F)
      • Refutation
        • S(c);
  • Actual
    • P(K);
    • Vars
      • P(b);SBLOCK,XP(H)::QAR(F)+S(E)
      • S(c);::QAB(F)
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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).