MESON Chess Problem Database

Problem Display
PID: 147356 (8/3K2Q1/8/3k1p2/3r1r2/4B3/4B3/8 w - - 0 1)

Dawson, Thomas Rayner

English Mechanic and World of Science, 1908

(First published on Fri Feb 21 1908)

8/3K2Q1/8/3k1p2/3r1r2/4B3/4B3/8

#2

4 + 4

1295 London Opinion 1909
15256 TRD Scrapbook 2013
15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4+
      • 2.Qxd4#
    • 1...Rf1
      • 2.Qxd4#
    • 1...Rf2
      • 2.Qxd4#
    • 1...Rf3
      • 2.Qxd4#
  • Keys
    • 1.Qf6!
      • 1...Ke4+
        • 2.Qxd4#
      • 1...Kc5+
        • 2.Qd6#
      • 1...Rd1
        • 2.Qe6#
      • 1...Rd2
        • 2.Qe6#
      • 1...Rd3
        • 2.Qe6#
      • 1...Ra4
        • 2.Qe6#
      • 1...Rb4
        • 2.Qe6#
      • 1...Rc4
        • 2.Qe6#
      • 1...Rde4
        • 2.Qd6#
      • 1...Rf1
        • 2.Qxd4#
      • 1...Rf2
        • 2.Qxd4#
      • 1...Rf3
        • 2.Qxd4#
      • 1...Rfe4
        • 2.Qd6#
      • 1...Rg4
        • 2.Qxf5#
      • 1...Rh4
        • 2.Qxf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
    • K(c);CHECK,S_FLIGHT::QAR1(D),XR(a)
    • R(b);N_GUARD::QAR1(D),XR(a)
  • Actual
    • Q(D);
    • Vars
      • K(c);CHECK,S_FLIGHT::QAR1(D),XR(a)
      • K(c);CHECK,P-FLIGHT,P_SPINR(a)::QAB1(D)
      • R(a);::QAB1(D)
      • R(a);SBLOCK::QAR1(D)
      • R(b);N_GUARD::QAR1(D),XR(a)
      • R(b);SBLOCK::QAR1(D)
      • R(b);N_GUARD::QAR2(D),XP(d)
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).