MESON Chess Problem Database

Problem Display
PID: 175140 (1b3R2/4Q3/1p1B4/1p1k4/2p5/5K2/8/8 w - - 0 1)

Kvicala, Josef

Besedy lidu, 1902

1b3R2/4Q3/1p1B4/1p1k4/2p5/5K2/8/8

#2

4 + 5

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Rf5+?
      • 1...Kd4
        • 2.Qe3#
      • 1...Kc6!
  • Keys
    • 1.Rd8!
      • threat
        • 2.Qe4#
      • 1...Kd4
        • 2.Be5#
      • 1...Kc6
        • 2.Qe4#
      • 1...Bxd6
        • 2.Qxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • K(c);P-FLIGHT::QAB1(C)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • R(D);
    • Threat
      • QAB1(C)
    • Vars
      • K(c);P-FLIGHT::R(D)+B(B),DCHECK
      • K(c);S_FLIGHT::QAB(C)
      • B(e);OGATE,P_SPINB(e),XB(B)::QAR1(C),XB(e)
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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).