MESON Chess Problem Database

Problem Display
PID: 147575 (8/8/4B3/1Np5/2r1k3/b1p3B1/2n1P3/nQ1N3K w - - 0 1)

Dawson, Thomas Rayner

Yorkshire Weekly Post, 1909

(First published on Sat Nov 20 1909)

8/8/4B3/1Np5/2r1k3/b1p3B1/2n1P3/nQ1N3K

#2

7 + 7

15256 TRD Scrapbook 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Sbxc3#
    • 1...Sb3
      • 2.Qxc2#
  • Tries
    • 1.Qc1?
      • threat
        • 2.Sf2#
        • 2.Qf4#
      • 1...Se3
        • 2.Sf2#
        • 2.Qxe3#
      • 1...Bxc1!
  • Keys
    • 1.Qa2!
      • 1...Ra4
        • 2.Qd5#
      • 1...Rb4
        • 2.Qd5#
      • 1...Rd4
        • 2.Sbxc3#
      • 1...Bc1
        • 2.Qa8#
      • 1...Bb2
        • 2.Qa8#
      • 1...Bb4
        • 2.Qa8#
      • 1...Sb3
        • 2.Qxc2#
      • 1...Se1
        • 2.Qxc4#
      • 1...Se3
        • 2.Sf2#
      • 1...Sb4
        • 2.Qxc4#
      • 1...Sd4
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • R(e);N_GUARD,SBLOCK::S(F),XP(d)
    • S(a);N_GUARD::QAB(A),XS(b)
  • Tries
    • Try
      • Q(A);N_PINS(b)
      • Threat
        • DUALS(2)
      • Refutation
        • B(c);XQ(A)
  • Actual
    • Q(A);N_PINS(b)
    • Vars
      • R(e);OGATE::QAB1(A)
      • R(e);N_GUARD,SBLOCK::S(F),XP(d)
      • B(c);OGATE::QAB(A)
      • S(a);N_GUARD::QAB(A),XS(b)
      • S(b);N_GUARD::QAR2(A),XR(e)
      • S(b);SBLOCK::S(B)
      • S(b);SBLOCK::S(F)
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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).