MESON Chess Problem Database

Problem Display
PID: 234353 (N2Bkb1n/1p2N3/n7/8/3R4/1Q4K1/6B1/8 w - - 0 1)

Abdullayev, Elmar

Problemas, 2020

N2Bkb1n/1p2N3/n7/8/3R4/1Q4K1/6B1/8

#2

7 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sb4
      • 2.Sc7#
    • 1...Sc5
      • 2.Sc7#
    • 1...Sc7
      • 2.Sxc7#
    • 1...Sb8
      • 2.Sc7#
    • 1...Sf7
      • 2.Qb5#
    • 1...b5
      • 2.Bc6#
    • 1...b6
      • 2.Bc6#
  • Tries
    • 1.Qg8?
      • 1...Sb4
        • 2.Sc7#
      • 1...Sc5
        • 2.Sc7#
      • 1...Sc7
        • 2.Sxc7#
      • 1...Sb8
        • 2.Sc7#
      • 1...Sg6
        • 2.Qxg6#
      • 1...b5
        • 2.Bc6#
      • 1...b6
        • 2.Bc6#
      • 1...Sf7!
  • Keys
    • 1.Qe6!
      • 1...Bxe7
        • 2.Qxe7#
      • 1...Bh6
        • 2.Sg6#
      • 1...Bg7
        • 2.Sg6#
      • 1...Sb4
        • 2.Sc7#
      • 1...Sc5
        • 2.Sc7#
      • 1...Sc7
        • 2.Sxc7#
      • 1...Sb8
        • 2.Sc7#
      • 1...Sg6
        • 2.Qxg6#
      • 1...Sf7
        • 2.Qd7#
      • 1...b5
        • 2.Bc6#
      • 1...b6
        • 2.Bc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::S(F)
    • S(a);N_GUARD::S(F),XS(a)
    • S(e);SBLOCK::QAB(B)
    • P(b);N_GUARD::B(A)
  • Tries
    • Try
      • Q(B);P_PINB(d)
      • Vars
        • S(a);N_GUARD::S(F)
        • S(a);N_GUARD::S(F),XS(a)
        • S(e);N_GUARD::QAB(B),XS(e)
        • P(b);N_GUARD::B(A)
      • Refutation
        • S(e);
  • Actual
    • Q(B);
    • Vars
      • B(d);OGATE,P_SPINB(d),XS(E)::QAR1(B),XB(d)
      • B(d);N_GUARD::QAR(B)+S(E)
      • S(a);N_GUARD::S(F)
      • S(a);N_GUARD::S(F),XS(a)
      • S(e);N_GUARD::QAB(B),XS(e)
      • S(e);SBLOCK::QAB1(B)
      • P(b);N_GUARD::B(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).