MESON Chess Problem Database

Problem Display
PID: 230967 (8/8/8/2B1kpNK/8/8/1N6/Q7 w - - 0 1)

Atanasov, Borislav

Kudesnik, 2015

8/8/8/2B1kpNK/8/8/1N6/Q7

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.Sd1#
      • 2.Sd3#
      • 2.Sa4#
      • 2.Sc4#
  • Tries
    • 1.Sd1+?
      • 1...Kf4
        • 2.Bd6#
      • 1...Kd5!
    • 1.Sc4+?
      • 1...Kf4
        • 2.Bd6#
        • 2.Qe5#
      • 1...Kd5!
    • 1.Qd1?
      • threat
        • 2.Qd4#
        • 2.Qd6#
      • 1...Kf4
        • 2.Qd6#
      • 1...Kf6
        • 2.Qd4#
      • 1...f4!
    • 1.Qe1+?
      • 1...Kf4
        • 2.Sd3#
        • 2.Bd6#
        • 2.Qe3#
      • 1...Kf6
        • 2.Bd4#
        • 2.Qc3#
        • 2.Qe7#
      • 1...Kd5!
    • 1.Qa8?
      • 1...Kf4
        • 2.Qb8#
      • 1...Kf6
        • 2.Qh8#
      • 1...f4!
  • Keys
    • 1.Qa6!
      • threat
        • 2.Qd6#
      • 1...Kf4
        • 2.Qd6#
      • 1...Kd5
        • 2.Qd6#
      • 1...f4
        • 2.Qe6#

FEATURES

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