MESON Chess Problem Database

Problem Display
PID: 223359 (8/8/8/1P1pk3/1P1R4/8/2K2Q2/8 w - - 0 1)

Loser, Mathilde

An der schönen blauen Donau, 1886

8/8/8/1P1pk3/1P1R4/8/2K2Q2/8

#2

5 + 2

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qf8?
      • 1...Kxd4
        • 2.Qf4#
      • 1...Ke6!
  • Keys
    • 1.Qf7!
      • 1...Kxd4
        • 2.Qf4#
      • 1...Kd6
        • 2.Rxd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);
      • Vars
        • K(b);S_FLIGHT,XR(D)::QAR2(B)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(b);S_FLIGHT,XR(D)::QAR2(B)
      • K(b);P_SPINP(a),S_FLIGHT::R1(D),XP(a)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).