MESON Chess Problem Database

Problem Display
PID: 154480 (B2N1r2/6Q1/8/2n2k2/5P2/6Pn/K3P3/8 w - - 0 1)

Gorbatenko, Yuri Grigorevich

Zadachi i Etyudi, 1995

B2N1r2/6Q1/8/2n2k2/5P2/6Pn/K3P3/8

#2

7 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Sg1
      • 2.Qg5#
    • 1...Sf2
      • 2.Qg5#
    • 1...Sxf4
      • 2.g4#
    • 1...Sg5
      • 2.Qxg5#
    • 1...Sb3
      • 2.e4#
    • 1...Sd3
      • 2.e4#
    • 1...Sa4
      • 2.e4#
    • 1...Sa6
      • 2.e4#
    • 1...Se6
      • 2.e4#
    • 1...Sd7
      • 2.e4#
  • Tries
    • 1.Be4+?
      • 1...Kxe4
        • 2.Qe5#
      • 1...Sxe4!
  • Keys
    • 1.Bf3!
      • 1...Rxd8
        • 2.Qf7#
      • 1...Sxf4
        • 2.g4#
      • 1...Rf6
        • 2.Qg4#
      • 1...Rf7
        • 2.Qxf7#
      • 1...Re8
        • 2.Qf7#
      • 1...Rg8
        • 2.Qf7#
      • 1...Rh8
        • 2.Qf7#
      • 1...Sg1
        • 2.Qg5#
      • 1...Sf2
        • 2.Qg5#
      • 1...Sg5
        • 2.Qxg5#
      • 1...Sb3
        • 2.e4#
      • 1...Sd3
        • 2.e4#
      • 1...Sa4
        • 2.e4#
      • 1...Se4
        • 2.Bg4#
      • 1...Sa6
        • 2.e4#
      • 1...Se6
        • 2.e4#
      • 1...Sb7
        • 2.e4#
      • 1...Sd7
        • 2.e4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::QAR1(E)
    • S(a);SBLOCK,XP(D)::P(C)
    • S(a);N_GUARD::QAR1(E),XS(a)
    • S(b);N_GUARD::P(B)
  • Tries
    • Try
      • B(F);CHECK
      • Vars
        • K(c);S_FLIGHT,XB(F)::QAR1(E)
      • Refutation
        • S(b);XB(F)
  • Actual
    • B(F);
    • Vars
      • R(d);N_GUARD,XS(G)::QAR2(E)
      • S(a);SBLOCK,XP(D)::P(C)
      • R(d);SBLOCK::QAB1(E)
      • R(d);N_GUARD::QAR2(E),XR(d)
      • R(d);N_GUARD::QAR2(E)
      • S(a);N_GUARD::QAR1(E)
      • S(a);N_GUARD::QAR1(E),XS(a)
      • S(b);N_GUARD::P(B)
      • S(b);SBLOCK::B(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).