MESON Chess Problem Database

Problem Display
PID: 154521 (8/2K4p/4pp1P/5k2/7R/4p3/1Q6/8 w - - 0 1)

Tuxen, Harri Viggo

Hvar a Dag, 1917

8/2K4p/4pp1P/5k2/7R/4p3/1Q6/8

#2

4 + 5

4035 Aarsskrift for DSK 1935

SOLUTION

  • SOUND
  • Tries
    • 1.Qb1+?
      • 1...Ke5
        • 2.Qe4#
        • 2.Qb5#
      • 1...Kg5!
    • 1.Qc2+?
      • 1...Ke5
        • 2.Qe4#
        • 2.Qc5#
      • 1...Kg5!
    • 1.Qg2?
      • 1...Ke5
        • 2.Qe4#
      • 1...e5
        • 2.Qg4#
      • 1...e2!
    • 1.Qb5+?
      • 1...Kg6
        • 2.Qh5#
      • 1...e5!
  • Keys
    • 1.Qe2!
      • threat
        • 2.Qh5#
      • 1...Ke5
        • 2.Qb5#
      • 1...Kg5
        • 2.Qg4#
        • 2.Qh5#
      • 1...Kg6
        • 2.Qh5#
      • 1...e5
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
        • P(c);SBLOCK::QAB1(A)
      • Refutation
        • P(a);
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAB1(A)
      • Refutation
        • P(c);P_SPINP(c)
  • Actual
    • Q(A);
    • Threat
      • QAR2(A)
    • Vars
      • K(b);P-FLIGHT,P_SPINP(a)::QAR(A)
      • K(b);S_FLIGHT::QAB1(A)
      • P(c);SBLOCK::QAB1(A)
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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).