MESON Chess Problem Database

Problem Display
PID: 99431 (1b1KNR2/2p3pP/p1B1p3/2p1k1p1/Q7/4p1N1/n6n/1b1R4 w - - 0 1)

Trommler, Sven

Sakkelet, 1991

1b1KNR2/2p3pP/p1B1p3/2p1k1p1/Q7/4p1N1/n6n/1b1R4

#2

8 + 12

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Qxe4#
    • 1...Sc1
      • 2.Qa1#
    • 1...Sb4
      • 2.Qa1#
    • 1...c4
      • 2.Qa5#
    • 1...g4
      • 2.Qf4#
    • 1...g6
      • 2.h8Q#
      • 2.h8B#
  • Keys
    • 1.h8S!
      • threat
        • 2.Sf7#
      • 1...Be4
        • 2.Qxe4#
      • 1...Bg6
        • 2.Sxg6#
      • 1...Sb4
        • 2.Qa1#
      • 1...c4
        • 2.Qa5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD::QAR1(C),XB(a)
    • S(b);OGATE::QAB(C)
    • P(e);OGATEB::QAR(C)
    • P(g);N_GUARD::QAB1(C)
    • P(k);::P=Q
  • Actual
    • P(E);
    • Threat
      • S(E)
    • Vars
      • B(a);N_GUARD::QAR1(C),XB(a)
      • B(a);N_GUARD::S(E),XB(a)
      • S(b);OGATE::QAB(C)
      • P(e);OGATEB::QAR(C)
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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).