MESON Chess Problem Database

Problem Display
PID: 234565 (3B4/1n2pN2/2N1Q3/2k5/Pp6/8/5K2/8 w - - 0 1)

Speckmann, Werner

Europe Echecs, 1972

3B4/1n2pN2/2N1Q3/2k5/Pp6/8/5K2/8

#2

6 + 4

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sfe5?
      • threat
        • 2.Sd3#
        • 2.Sd7#
      • 1...Sxd8
        • 2.Sd7#
      • 1...Sd6!
    • 1.Qe5+?
      • 1...Kxc6
        • 2.Qb5#
      • 1...Kc4!
  • Keys
    • 1.Sa5!
      • threat
        • 2.Sb3#
        • 2.Bb6#
        • 2.Qc4#
        • 2.Qe5#
      • 1...Kd4
        • 2.Qc4#
      • 1...Sxa5
        • 2.Bb6#
      • 1...Sxd8
        • 2.Sb3#
      • 1...b3
        • 2.Qc4#
      • 1...Sd6
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • S(c);XB(F)::S(E)
      • Refutation
        • S(c);
    • Try
      • Q(D);CHECK
      • Vars
        • K(b);OGATE,P-FLIGHT,XS(C)::QAB1(D)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • S(C);
    • Threat
      • DUALS(4)
    • Vars
      • K(b);S_FLIGHT::QAR1(D)
      • S(c);XS(C)::B(F)
      • S(c);XB(F)::S(C)
      • P(a);::QAR1(D)
      • S(c);::QAR2(D)
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).