MESON Chess Problem Database

Problem Display
PID: 192886 (7B/3Kp3/4P3/3k1pN1/3p4/1P3P2/b2N2r1/2R4B w - - 0 1)

Borovik, Boris V

Schweizerische Schachzeitung, 1984

7B/3Kp3/4P3/3k1pN1/3p4/1P3P2/b2N2r1/2R4B

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rg4
      • 2.fxg4#
  • Tries
    • 1.Sde4?
      • threat
        • 2.Rc5#
      • 1...fxe4
        • 2.fxe4#
      • 1...Rc2!
    • 1.Sh3?
      • threat
        • 2.Sf4#
      • 1...Rg4
        • 2.fxg4#
      • 1...f4
        • 2.Sxf4#
      • 1...Rg7!
  • Keys
    • 1.Sge4!
      • threat
        • 2.Rc5#
      • 1...fxe4
        • 2.fxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(b);OGATE::B(B)+P(E),XR(b)
  • Tries
    • Try
      • S(C);
      • Threat
        • R1(A)
      • Vars
        • P(e);OGATE,XS(C)::P(E),XP(e)
      • Refutation
        • R(b);
    • Try
      • S(F);
      • Threat
        • S(F)
      • Vars
        • R(b);OGATE::B(B)+P(E),XR(b)
        • P(e);::S(F),XP(e)
      • Refutation
        • R(b);
  • Actual
    • S(F);
    • Threat
      • R1(A)
    • Vars
      • P(e);OGATE,XS(F)::P(E),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).