MESON Chess Problem Database

Problem Display
PID: 246649 (K5B1/5Rb1/1p2R3/8/nB6/8/k2p2r1/3Q4 w - - 0 1)

Kopyl, Valery Volodimirovich

Moscow Ty., 2007

K5B1/5Rb1/1p2R3/8/nB6/8/k2p2r1/3Q4

#2

6 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Rf1?
      • threat
        • 2.Qb1#
      • 1...Kb2
        • 2.Qb1#
      • 1...Bb2
        • 2.Rg6#
      • 1...Sc3
        • 2.Qc2#
      • 1...Sb2!
  • Keys
    • 1.Re1!
      • threat
        • 2.Qb1#
      • 1...Kb2
        • 2.Qb1#
      • 1...dxe1Q
        • 2.Rf2#
      • 1...dxe1S
        • 2.Rf2#
      • 1...dxe1B
        • 2.Rf2#
      • 1...dxe1R
        • 2.Rf2#
      • 1...Bb2
        • 2.Rg7#
      • 1...Sb2
        • 2.Ra7#
      • 1...Sc3
        • 2.Qc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
        • B(f);SBLOCK::B(F)+R(C)
        • S(d);N_GUARD,S_CUTB(f)::QAR2(A)
      • Refutation
        • S(d);
  • Actual
    • R(C);
    • Threat
      • QAB1(A)
    • Vars
      • K(a);P-FLIGHT::QAR1(A)
      • P(b);XR(C)::B(F)+R(D),DCHECK
      • B(f);SBLOCK::B(F)+R(D)
      • S(d);SBLOCK::B(F)+R(D),DCHECK
      • S(d);N_GUARD,S_CUTB(f)::QAR2(A)
HTML5 logo

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).