MESON Chess Problem Database

Problem Display
PID: 193539 (K3k2r/1p2p1p1/p1p1p3/2Q1Np2/3n1P2/4PRP1/PPPPRrP1/n2bqB2 w - - 0 1)

Dawson, Thomas Rayner

Retrograde Analysis, 1915

K3k2r/1p2p1p1/p1p1p3/2Q1Np2/3n1P2/4PRP1/PPPPRrP1/n2bqB2

#2

14 + 14

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Qd6?
      • threat
        • 2.Qb8#
      • 1...Kf8
        • 2.Qb8#
        • 2.Qd8#
      • 1...exd6!
  • Keys
    • 1.Qa7!
      • threat
        • 2.Qb8#
      • 1...Kd8
        • 2.Qb8#
      • 1...Kf8
        • 2.Qb8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(L);
      • Threat
        • QAR(L)
      • Refutation
        • P(k);XQ(L)
  • Actual
    • Q(L);
    • Threat
      • QAR(L)
    • Vars
      • K(m);P-FLIGHT::QAR2(L)
      • K(m);P-FLIGHT::QAR(L)
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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).