MESON Chess Problem Database

Problem Display
PID: 119761 (5N2/6n1/1pKP3N/4k3/5p1P/5Pp1/8/3nB1Q1 w - - 0 1)

Tuxen, Harri Viggo

Skakbladet, 1917

5N2/6n1/1pKP3N/4k3/5p1P/5Pp1/8/3nB1Q1

#2

8 + 6

4035 Aarsskrift for DSK 1935
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.Qd4#
    • 1...Sb2
      • 2.Bc3#
    • 1...Sf2
      • 2.Bc3#
    • 1...Sc3
      • 2.Bxc3#
    • 1...Se3
      • 2.Bc3#
    • 1...Sf5
      • 2.Sg4#
    • 1...Se6
      • 2.Sd7#
  • Tries
    • 1.Qe3+?
      • 1...Kf6
        • 2.Qd4#
        • 2.Qe7#
      • 1...Sxe3
        • 2.Bc3#
      • 1...fxe3!
    • 1.Qc5+?
      • 1...Kf6
        • 2.Qd4#
        • 2.Qg5#
      • 1...bxc5!
  • Keys
    • 1.Bf2!
      • threat
        • 2.Bd4#
      • 1...Kf6
        • 2.Bd4#
      • 1...Sxf2
        • 2.Qa1#
      • 1...gxf2
        • 2.Qxg7#
      • 1...Se3
        • 2.Qa1#
      • 1...Sf5
        • 2.Sg4#
      • 1...Se6
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • K(d);S_FLIGHT::QAB(B)
    • S(a);N_GUARD::B(A)
    • S(a);N_GUARD::B(A),XS(a)
    • S(f);SBLOCK::S(G)
    • S(f);SBLOCK::S(H)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • S(a);XQ(B)::B(A)
      • Refutation
        • P(c);XQ(B)
    • Try
      • Q(B);CHECK
      • Refutation
        • P(e);XQ(B)
  • Actual
    • B(A);
    • Threat
      • B(A)
    • Vars
      • K(d);S_FLIGHT::B(A)
      • S(a);OGATE,XB(A)::QAB(B)
      • P(b);OGATE,XB(A)::QAB(B),XS(f)
      • S(a);OGATE::QAB(B)
      • S(f);SBLOCK::S(G)
      • S(f);SBLOCK::S(H)
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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).