MESON Chess Problem Database

Problem Display
PID: 193561 (1K6/2Q1p3/1P6/b2kN2p/1p1N3q/4pPpp/8/3R3r w - - 0 1)

van Dijk, Johannes

De Maasbode, 1915

1K6/2Q1p3/1P6/b2kN2p/1p1N3q/4pPpp/8/3R3r

#2

7 + 10

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Qd7+?
      • 1...Kc5
        • 2.Qc6#
      • 1...Kxe5!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Qc5#
      • 1...Kxd4
        • 2.Se1#
        • 2.Qc5#
      • 1...Qxd4
        • 2.Sf4#
      • 1...Bxb6
        • 2.Sxb4#
      • 1...Qf4
        • 2.Sxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);CHECK
      • Vars
        • K(h);P-FLIGHT::QAR1(F)
      • Refutation
        • K(h);P-FLIGHT,XS(D)
  • Actual
    • S(D);
    • Threat
      • QAR1(F)
    • Vars
      • Q(f);N_GUARD,XS(C)::S(D)
      • B(g);N_GUARD,XP(E)::S(D),XP(e)
      • Q(f);N_GUARD,P_PINQ(F)::S(D),XQ(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).