MESON Chess Problem Database

Problem Display
PID: 121548 (b2Q4/8/6N1/2p5/B1pNk3/2bp4/5P2/7K w - - 0 1)

Huse, Hans Markus

Morgenbladet, 1919

b2Q4/8/6N1/2p5/B1pNk3/2bp4/5P2/7K

#2

6 + 6

756 Norsk Sjakkblad 1919
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bd5
      • 2.Qh4#
    • 1...Bc6
      • 2.Bxc6#
    • 1...d2
      • 2.Bc2#
  • Tries
    • 1.Qe7+?
      • 1...Kd5
        • 2.Qe5#
      • 1...Kxd4+!
    • 1.Qe8+?
      • 1...Kd5
        • 2.Qe5#
      • 1...Kxd4+!
  • Keys
    • 1.Bd7!
      • threat
        • 2.Bf5#
      • 1...Kxd4+
        • 2.Bc6#
      • 1...Kd5
        • 2.Bf5#
        • 2.Bc6#
      • 1...Bxd4
        • 2.Qxa8#
      • 1...cxd4
        • 2.Qxa8#
      • 1...Bd5
        • 2.Qh4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(f);SBLOCK::QAR(F)
    • B(f);N_GUARD::B(C),XB(f)
    • P(b);OGATEB::B(C)
  • Tries
    • Try
      • Q(F);CHECK
      • Vars
        • K(d);S_FLIGHT::QAR1(F)
      • Refutation
        • K(d);CHECK,P-FLIGHT,XS(D)
    • Try
      • Q(F);CHECK
      • Vars
        • K(d);S_FLIGHT::QAR1(F)
      • Refutation
        • K(d);CHECK,P-FLIGHT,XS(D)
  • Actual
    • B(C);
    • Threat
      • B(C)
    • Vars
      • K(d);CHECK,P-FLIGHT,XS(D)::QAR(F)+B(C)
      • B(a);SBLOCK,XS(D)::QAB(F),XB(f)
      • P(e);SBLOCK,XS(D)::QAB(F),XB(f)
      • B(f);SBLOCK::QAR(F)
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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).