MESON Chess Problem Database

Problem Display
PID: 121532 (8/1Kp1Q3/8/2Bk1p2/1p6/1P3p2/8/8 w - - 0 1)

Drnek, Josef

Nove parizske mody, 1906

8/1Kp1Q3/8/2Bk1p2/1p6/1P3p2/8/8

#2

4 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qd6+?
      • 1...Ke4
        • 2.Qd4#
      • 1...cxd6!
    • 1.Qe6+?
      • 1...Kxc5
        • 2.Qe5#
      • 1...Kxe6!
  • Keys
    • 1.Qf6!
      • threat
        • 2.Qxf5#
      • 1...Ke4
        • 2.Qd4#
      • 1...Kxc5
        • 2.Qe5#
      • 1...f4
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT::QAR1(D)
      • Refutation
        • P(e);XQ(D)
    • Try
      • Q(D);CHECK
      • Vars
        • K(c);P-FLIGHT,XB(B)::QAR2(D)
      • Refutation
        • K(c);S_FLIGHT,XQ(D)
  • Actual
    • Q(D);
    • Threat
      • QAR2(D),XP(d)
    • Vars
      • K(c);S_FLIGHT::QAR1(D)
      • K(c);P-FLIGHT,XB(B)::QAR2(D)
      • P(d);::QAR2(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).