MESON Chess Problem Database

Problem Display
PID: 61557 (6B1/3Kp3/8/1p1RN2N/2b1k3/4Pp2/4R3/5nB1 w - - 0 1)

Okkinga, AS

Tijdschrift vd NSB, 1895

6B1/3Kp3/8/1p1RN2N/2b1k3/4Pp2/4R3/5nB1

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Sd2
      • 2.Sg3#
    • 1...Sh2
      • 2.Sg3#
    • 1...Sg3
      • 2.Sxg3#
  • Tries
    • 1.Ke6?
      • threat
        • 2.Bh7#
      • 1...Sg3
        • 2.Sxg3#
      • 1...Bxd5+!
  • Keys
    • 1.Sf7!
      • threat
        • 2.Sg5#
      • 1...Kxd5
        • 2.e4#
      • 1...Bxd5
        • 2.Bh7#
      • 1...e5
        • 2.Sd6#
      • 1...e6
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • S(a);N_GUARD::S(F)
    • S(a);N_GUARD::S(F),XS(a)
  • Tries
    • Try
      • K(G);P_SPINR(D),S_FLIGHT
      • Threat
        • B(H)
      • Vars
        • S(a);N_GUARD::S(F),XS(a)
      • Refutation
        • B(c);CHECK,XR(D)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • K(d);OGATE,S_FLIGHT,XR(D)::P(C)
      • B(c);SBLOCK,XR(D)::B(H)
      • P(f);N_GUARD::S(E)
      • P(f);N_GUARD::S(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).