MESON Chess Problem Database

Problem Display
PID: 194871 (8/2p5/2p4q/4pN2/K1k1B3/5N2/7b/B4nQ1 w - - 0 1)

Tuxen, Harri Viggo

Nationaltidende, 1918

8/2p5/2p4q/4pN2/K1k1B3/5N2/7b/B4nQ1

#2

6 + 7

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sd2
      • 2.Qc1#
    • 1...Sg3
      • 2.Sxe5#
    • 1...c5
      • 2.Qxf1#
  • Tries
    • 1.Sd2+?
      • 1...Sxd2
        • 2.Qc1#
      • 1...Qxd2!
  • Keys
    • 1.Bd4!
      • threat
        • 2.Qxf1#
      • 1...Bxg1
        • 2.Sxe5#
      • 1...exd4
        • 2.Qxd4#
      • 1...Qc1
        • 2.Qg8#
      • 1...Qd2
        • 2.Qg8#
      • 1...Qe3
        • 2.Qg8#
      • 1...Qh3
        • 2.Qg8#
      • 1...Sd2
        • 2.Qc1#
      • 1...Se3
        • 2.Sd2#
      • 1...Sg3
        • 2.Sxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • S(a);OGATE::QAR(B)
    • S(a);S_CUTB(b)::S(C),XP(d)
    • P(e);SBLOCK::QAB(B),XS(a)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • S(a);OGATE,XS(C)::QAR(B)
      • Refutation
        • Q(f);XS(C)
  • Actual
    • B(A);
    • Threat
      • QAB(B),XS(a)
    • Vars
      • B(b);N_GUARD,XQ(B)::S(C),XP(d)
      • P(d);OGATE,XB(A)::QAR1(B),XP(d)
      • Q(f);N_GUARD::QAB(B)
      • S(a);OGATE::QAR(B)
      • S(a);N_GUARD,S_CUTQ(f)::S(C)
      • S(a);S_CUTB(b)::S(C),XP(d)
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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).