MESON Chess Problem Database

Problem Display
PID: 120835 (8/1Q6/2q1p3/4Np2/2b1kp2/3R4/8/B3K3 w - - 0 1)

Loepert, Fritz

Mate, 1982

8/1Q6/2q1p3/4Np2/2b1kp2/3R4/8/B3K3

#2

5 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ba6
      • 2.Qxc6#
  • Tries
    • 1.Rd4+?
      • 1...Kxe5
        • 2.Qg7#
      • 1...Ke3!
  • Keys
    • 1.Sg4!
      • threat
        • 2.Sf2#
      • 1...Kxd3
        • 2.Qb1#
      • 1...Bxd3
        • 2.Qxc6#
      • 1...fxg4
        • 2.Qh7#
      • 1...f3
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • B(a);N_GUARD::QAB(E),XQ(e)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • K(b);N_SPINQ(e),P-FLIGHT,XS(D)::QAB(E)
      • Refutation
        • K(b);N_SPINQ(e),P-FLIGHT
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • K(b);N_SPINQ(e),OGATEB,S_FLIGHT,XR(C)::QAB(E)
      • B(a);N_GUARD,SBLOCK,XR(C)::QAB(E),XQ(e)
      • P(d);OGATEB,XS(D)::QAB(E)
      • P(c);SBLOCK::R1(C)
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).