MESON Chess Problem Database

Problem Display
PID: 215845 (3B4/8/3k4/N4Q2/b2P4/K7/8/3R4 w - - 0 1)

Witt, Andreas

Badische Neueste Nachrichten, 1997

3B4/8/3k4/N4Q2/b2P4/K7/8/3R4

#2

6 + 2

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bc6
      • 2.Sc4#
    • 1...Bd7
      • 2.Qe5#
  • Tries
    • 1.Bc7+?
      • 1...Ke7
        • 2.Re1#
      • 1...Kxc7!
    • 1.Rc1?
      • threat
        • 2.Sb7#
      • 1...Bc6
        • 2.Sc4#
        • 2.Rxc6#
      • 1...Bc2!
    • 1.Re1?
      • threat
        • 2.Qe6#
      • 1...Bd7
        • 2.Qc5#
        • 2.Qe5#
      • 1...Bb3!
    • 1.Qf6+?
      • 1...Kd5
        • 2.Qe5#
      • 1...Kd7!
  • Keys
    • 1.d5!
      • threat
        • 2.Sb7#
      • 1...Kc5
        • 2.d6#
      • 1...Bc6
        • 2.dxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(a);SBLOCK::S(D)
    • B(a);SBLOCK::QAB1(E)
  • Tries
    • Try
      • B(F);CHECK
      • Vars
        • K(b);S_FLIGHT::R(A)
      • Refutation
        • K(b);S_FLIGHT,XB(F)
    • Try
      • R(A);
      • Threat
        • S(D)
      • Refutation
        • B(a);
    • Try
      • R(A);
      • Threat
        • QAR1(E)
      • Refutation
        • B(a);
    • Try
      • Q(E);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(E)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • P(C);
    • Threat
      • S(D)
    • Vars
      • K(b);OGATE,S_FLIGHT::QAR(E)+P(C)
      • B(a);OGATE::R(A)+P(C),XB(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).