MESON Chess Problem Database

Problem Display
PID: 152154 (2rb4/1qn2Q1N/br6/4p3/2p1k1Pp/R3Pp2/2P2P1K/1B6 w - - 0 1)

Dawson, Thomas Rayner

2nd Comm., South African Chess Magazine, 1938

2rb4/1qn2Q1N/br6/4p3/2p1k1Pp/R3Pp2/2P2P1K/1B6

#2

9 + 11

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Qd5
      • 2.Qf5#
    • 1...Rb3
      • 2.cxb3#
    • 1...Rb5
      • 2.Qxc4#
    • 1...Rf6
      • 2.Sg5#
    • 1...Bb5
      • 2.c3#
    • 1...Bg5
      • 2.Sxg5#
    • 1...Sb5
      • 2.c3#
    • 1...Sd5
      • 2.Qf5#
  • Tries
    • 1.Rd3?
      • threat
        • 2.Qf5#
      • 1...Rf6
        • 2.Sg5#
      • 1...Bf6
        • 2.Qg6#
      • 1...cxd3!
  • Keys
    • 1.Ra5!
      • threat
        • 2.Qf5#
      • 1...Rb5
        • 2.Qxc4#
      • 1...Rf6
        • 2.Sg5#
      • 1...Bb5
        • 2.c3#
      • 1...Bf6
        • 2.Qg6#
      • 1...Sb5
        • 2.c3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • Q(h);SBLOCK::QAB1(H)
    • R(g);OGATE::B(A)+P(B),XR(g)
    • R(g);S_CUTB(f)::QAR2(H),XP(b)
    • R(g);S_CUTB(k)::S(I)
    • B(f);S_CUTR(g)::B(A)+P(B)
    • B(k);N_GUARD::S(I),XB(k)
    • S(i);S_CUTR(g)::B(A)+P(B)
    • S(i);SBLOCK::QAB1(H)
  • Tries
    • Try
      • R(E);
      • Threat
        • QAB1(H)
      • Vars
        • R(g);S_CUTB(k)::S(I)
        • B(k);S_CUTR(g)::QAB(H)
      • Refutation
        • P(b);XR(E)
  • Actual
    • R(E);
    • Threat
      • QAB1(H)
    • Vars
      • R(g);S_CUTB(f)::QAR2(H),XP(b)
      • R(g);S_CUTB(k)::S(I)
      • B(f);S_CUTR(g)::B(A)+P(B)
      • B(k);S_CUTR(g)::QAB(H)
      • S(i);S_CUTR(g)::B(A)+P(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).