MESON Chess Problem Database

Problem Display
PID: 151923 (3Q4/6pp/5pp1/6k1/8/6K1/8/8 w - - 0 1)

Dawson, Thomas Rayner

British Chess Magazine, 1941

3Q4/6pp/5pp1/6k1/8/6K1/8/8

#2

2 + 5

3713 Snap 2014
15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Kf5
      • 2.Qd5#
  • Tries
    • 1.Qd2+?
      • 1...Kf5
        • 2.Qd5#
      • 1...Kh5!
  • Keys
    • 1.Qd4!
      • 1...Kf5
        • 2.Qd5#
      • 1...Kh5
        • 2.Qh4#
      • 1...Kh6
        • 2.Qh4#
      • 1...f5
        • 2.Qh4#
      • 1...h5
        • 2.Qf4#
      • 1...h6
        • 2.Qg4#

Anticipated by 102150(1927)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINP(b),P-FLIGHT::QAR2(B)
  • Tries
    • Try
      • Q(B);CHECK,N_PINP(b)
      • Vars
        • K(a);P-FLIGHT::QAR2(B)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(B);N_PINP(b)
    • Vars
      • K(a);P-FLIGHT::QAR2(B)
      • K(a);P-FLIGHT::QAR1(B)
      • K(a);S_FLIGHT::QAR2(B)
      • P(b);SBLOCK::QAB1(B)
      • P(e);SBLOCK::QAB1(B)
      • P(e);SBLOCK::QAR1(B)
HTML5 logo

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).