MESON Chess Problem Database

Problem Display
PID: 271236 (1B6/8/8/K1k5/n3Q1N1/8/7r/8 w - - 0 1)

Kolpakov, Viktor Sergeevich

Buletin Problemistic, 1995

1B6/8/8/K1k5/n3Q1N1/8/7r/8

#2

4 + 3

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Tries
    • 1.Se3?
      • threat
        • 2.Qd5#
        • 2.Qc4#
      • 1...Rc2
        • 2.Qd5#
      • 1...Rd2
        • 2.Qc4#
      • 1...Rh4
        • 2.Qd5#
      • 1...Rh5
        • 2.Qc4#
      • 1...Sb2
        • 2.Qd5#
      • 1...Sc3
        • 2.Qc4#
      • 1...Sb6!
    • 1.Qb4+?
      • 1...Kc6
        • 2.Qb5#
      • 1...Kd5!
    • 1.Qe5+?
      • 1...Kc6
        • 2.Qb5#
      • 1...Kc4!
  • Keys
    • 1.Se5!
      • threat
        • 2.Sd3#
        • 2.Sd7#
        • 2.Qc4#
      • 1...Rc2
        • 2.Sd3#
        • 2.Sd7#
      • 1...Rd2
        • 2.Qc4#
      • 1...Rh3
        • 2.Sd7#
        • 2.Qc4#
      • 1...Rh4
        • 2.Sd3#
        • 2.Sd7#
      • 1...Rh7
        • 2.Sd3#
        • 2.Qc4#
      • 1...Sb2
        • 2.Sd7#
      • 1...Sb6
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);::QAR1(A)
        • S(b);::QAR1(A)
      • Refutation
        • S(b);
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);N_GUARD,P-FLIGHT::QAB1(A)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);OGATE,P-FLIGHT::QAB1(A)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • S(B);
    • Threat
      • DUALS(3)
    • Vars
      • R(a);::QAR1(A)
      • S(b);::S(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).