MESON Chess Problem Database

Problem Display
PID: 164237 (8/8/5p2/2n2rp1/4k1P1/2P1NR2/8/3Q2K1 w - - 0 1)

Vladimirov, Evgeny

Novi Temi, 1976

8/8/5p2/2n2rp1/4k1P1/2P1NR2/8/3Q2K1

#2

6 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qd5#
    • 1...Rxf3
      • 2.Qd4#
    • 1...Rf4
      • 2.Qd5#
    • 1...Rd5
      • 2.Qxd5#
  • Tries
    • 1.gxf5?
      • threat
        • 2.Qd5#
      • 1...Ke5
        • 2.Qd4#
        • 2.Qd5#
      • 1...Sd3!
  • Keys
    • 1.Sc4!
      • 1...Rxf3
        • 2.Qd4#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Re5
        • 2.Sd6#
      • 1...Rf4
        • 2.Re3#
      • 1...Rd5
        • 2.Qe2#
      • 1...Sb3
        • 2.Qd3#
      • 1...Sa4
        • 2.Qd3#
      • 1...Sa6
        • 2.Qd3#
      • 1...Se6
        • 2.Qd3#
      • 1...Sb7
        • 2.Qd3#
      • 1...Sd7
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 8
    • REMOVED MATES = 1
  • Sets
    • K(a);P-FLIGHT::QAR1(A)
    • R(c);SBLOCK,XR(E)::QAR1(A)
    • R(c);N_GUARD::QAB1(A)
    • R(c);N_GUARD::QAB1(A),XR(c)
  • Tries
    • Try
      • P(F);XR(c)
      • Threat
        • QAB1(A)
      • Refutation
        • S(b);
  • Actual
    • S(D);
    • Vars
      • R(c);SBLOCK,XR(E)::QAR1(A)
      • S(b);N_GUARD::QAB1(A),XS(b)
      • R(c);SBLOCK::S(D)
      • R(c);SBLOCK::R1(E)
      • R(c);SBLOCK::QAR2(A)
      • S(b);N_GUARD::QAB1(A)
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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).