MESON Chess Problem Database

Problem Display
PID: 236064 (6BK/qb2R1pp/p4Nr1/Q5N1/3k3n/8/2npPP1b/3r4 w - - 0 1)

Bourd, Evgeny

Variantim, 2017

6BK/qb2R1pp/p4Nr1/Q5N1/3k3n/8/2npPP1b/3r4

#2

8 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Qe5#
    • 1...Be5
      • 2.Qxe5#
    • 1...Be4
      • 2.Rxe4#
    • 1...Bc8
      • 2.Re4#
    • 1...Sa1
      • 2.Qb4#
    • 1...Se1
      • 2.Qb4#
    • 1...Se3
      • 2.fxe3#
    • 1...Sb4
      • 2.Qxb4#
  • Tries
    • 1.Sfe4?
      • threat
        • 2.Qc3#
      • 1...Bxe4
        • 2.Rxe4#
      • 1...Qc5
        • 2.Qxc5#
      • 1...Rc6
        • 2.Qd5#
      • 1...Sb4
        • 2.Qxb4#
      • 1...Re6!
  • Keys
    • 1.Sge4!
      • threat
        • 2.Qc3#
      • 1...Bxe4
        • 2.Rxe4#
      • 1...Qc5
        • 2.Qxc5#
      • 1...Rg3
        • 2.Qe5#
      • 1...Sb4
        • 2.Qxb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • B(d);N_GUARD::QAB1(C)
    • B(d);N_GUARD::QAB1(C),XB(d)
    • B(j);N_GUARD::R1(F),XB(j)
    • B(j);N_GUARD::R1(F)
    • S(b);N_GUARD::QAR2(C)
    • S(b);OGATE::P(B),XS(b)
    • S(b);N_GUARD::QAR2(C),XS(b)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAB1(C)
      • Vars
        • B(j);OGATE,XS(E)::R1(F),XB(j)
        • Q(i);N_GUARD::QAB1(C),XQ(i)
        • R(h);S_CUTB(j)::QAR1(C)
        • S(b);N_GUARD::QAR2(C),XS(b)
      • Refutation
        • R(h);
  • Actual
    • S(D);
    • Threat
      • QAB1(C)
    • Vars
      • B(j);OGATE,XS(D)::R1(F),XB(j)
      • Q(i);N_GUARD::QAB1(C),XQ(i)
      • R(h);S_CUTB(d)::QAB1(C)
      • S(b);N_GUARD::QAR2(C),XS(b)
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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).