MESON Chess Problem Database

Problem Display
PID: 151233 (q2r2b1/p1Rp3p/1pr2N1K/1Bk3B1/Pp6/1p6/3R4/2N3b1 w - - 0 1)

Dawson, Thomas Rayner

The Problemist, 1934

q2r2b1/p1Rp3p/1pr2N1K/1Bk3B1/Pp6/1p6/3R4/2N3b1

#2

8 + 12

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Bh2
      • 2.Be3#
    • 1...Be3
      • 2.Bxe3#
    • 1...Bd5
      • 2.Rxd5#
    • 1...Be6
      • 2.Se4#
    • 1...d6
      • 2.Se4#
  • Tries
    • 1.Rxc6+?
      • 1...dxc6
        • 2.Se4#
      • 1...Qxc6!
  • Keys
    • 1.Bf4!
      • threat
        • 2.Bd6#
      • 1...Bh2
        • 2.Be3#
      • 1...Be3
        • 2.Bxe3#
      • 1...Bd4
        • 2.Sd3#
      • 1...Bd5
        • 2.Rxd5#
      • 1...d5
        • 2.Sxb3#
      • 1...d6
        • 2.Se4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(a);N_GUARD::B(E)
    • B(a);N_GUARD,P_PINB(E)::B(E),XB(a)
    • B(l);N_GUARD::R1(B),XB(l)
    • B(l);N_PINS(F)::S(F)
    • P(h);N_PINS(F)::S(F)
  • Tries
    • Try
      • R(H);CHECK,N_SPINS(F),XR(f)
      • Vars
        • P(h);XR(H)::S(F)
      • Refutation
        • Q(j);P_PINS(F),XR(H)
  • Actual
    • B(E);
    • Threat
      • B(E)
    • Vars
      • B(a);N_GUARD::B(E)
      • B(a);N_GUARD,P_PINB(E)::B(E),XB(a)
      • B(a);SBLOCK::S(A)
      • B(l);N_GUARD::R1(B),XB(l)
      • P(h);S_CUTB(l)::S(A),XP(b)
      • P(h);N_PINS(F)::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).