MESON Chess Problem Database

Problem Display
PID: 153264 (4k3/K1R1P1R1/2p3p1/2N1n3/B1p5/3p3b/5r1q/8 w - - 0 1)

Dawson, Thomas Rayner

British Chess Magazine, 1944

4k3/K1R1P1R1/2p3p1/2N1n3/B1p5/3p3b/5r1q/8

#2

6 + 9

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Rf5
      • 2.Rc8#
    • 1...Bf1
      • 2.Rc8#
    • 1...Bg2
      • 2.Rc8#
    • 1...Bc8
      • 2.Rxc8#
    • 1...Sg4
      • 2.Bxc6#
      • 2.Rc8#
    • 1...Sd7
      • 2.Rc8#
    • 1...Sf7
      • 2.Rg8#
  • Tries
    • 1.Bxc6+?
      • 1...Bd7
        • 2.Rc8#
      • 1...Sd7
        • 2.Rc8#
      • 1...Sxc6+!
    • 1.Rg8+?
      • 1...Rf8
        • 2.Rxf8#
        • 2.exf8Q#
        • 2.exf8R#
      • 1...Kf7!
  • Keys
    • 1.Se4!
      • threat
        • 2.Sd6#
      • 1...Rf6
        • 2.Sxf6#
      • 1...Sf3
        • 2.Sf6#
      • 1...Sg4
        • 2.Bxc6#
      • 1...Sd7
        • 2.Rc8#
      • 1...Sf7
        • 2.Rg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • R(a);S_CUTB(d)::R(D)
    • B(d);N_GUARD::R(D)
    • B(d);N_GUARD::R(D),XB(d)
    • S(f);N_SPINP(g),S_CUTB(d)::R(D)
    • S(f);SBLOCK,S_CUTR(a)::R(F)
  • Tries
    • Try
      • B(A);CHECK,XP(g)
      • Vars
        • B(d);P_SPINB(d)::R(D)
        • S(f);P_SPINS(f)::R(D)
      • Refutation
        • S(f);CHECK,XB(A)
    • Try
      • R(F);CHECK
      • Refutation
        • K(i);N_SPINP(g),S_FLIGHT
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • R(a);N_GUARD::S(B),XR(a)
      • S(f);S_CUTR(a)::S(B)
      • S(f);N_GUARD,S_CUTB(d)::B(A),XP(g)
      • S(f);N_SPINP(g),SBLOCK,S_CUTB(d)::R(D)
      • S(f);SBLOCK,S_CUTR(a)::R(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).