MESON Chess Problem Database

Problem Display
PID: 279408 (5b2/3n1n1R/3k4/N1Rb4/6BQ/3N4/8/6K1 w - - 0 1)

Bielefeldt, German

Cabrera, Virginio

Peris-120 MT (Problemas), 2024

5b2/3n1n1R/3k4/N1Rb4/6BQ/3N4/8/6K1

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Bh1
      • 2.Sc4#
    • 1...Ba2
      • 2.Sb7#
    • 1...Bg2
      • 2.Sc4#
    • 1...Bb3
      • 2.Sb7#
    • 1...Bf3
      • 2.Sc4#
    • 1...Bc4
      • 2.Sxc4#
      • 2.Sb7#
    • 1...Be4
      • 2.Sc4#
    • 1...Be6
      • 2.Sb7#
    • 1...Bb7
      • 2.Sc4#
      • 2.Sxb7#
    • 1...Ba8
      • 2.Sc4#
    • 1...Sg5
      • 2.Rxd7#
    • 1...Sh6
      • 2.Rxd7#
    • 1...Sd8
      • 2.Rxd7#
    • 1...Sh8
      • 2.Rxd7#
  • Tries
    • 1.Qf6+?
      • 1...Be6
        • 2.Sc4#
        • 2.Sb7#
        • 2.Qxe6#
      • 1...Sxf6!
  • Keys
    • 1.Qd8!
      • threat
        • 2.Qxd7#
      • 1...Sxd8
        • 2.Rxd7#
      • 1...Bc6
        • 2.Sc4#
      • 1...Be6
        • 2.Sb7#
      • 1...Se5
        • 2.Qc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 10
  • Sets
    • B(a);N_GUARD::S(E)
    • S(d);OGATE::R1(G),XS(c)
  • Tries
    • Try
      • Q(D);CHECK
      • Refutation
        • S(c);XQ(D)
  • Actual
    • Q(D);P_PINS(c)
    • Threat
      • QAR1(D),XS(c)
    • Vars
      • S(d);N_SPINS(c),OGATE,XQ(D)::R1(G),XS(c)
      • B(a);N_GUARD::S(E)
      • S(d);::QAB1(D)
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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).