Problem Display
PID: 148867 (8/2N5/2p3p1/Npr1p1B1/1P1kpp2/R3p3/1Pp1P3/2K5 w - - 0 1)

Dawson, Thomas Rayner

Natal Mercury, 1914

(First published on Sat Jan 31 1914)

8/2N5/2p3p1/Npr1p1B1/1P1kpp2/R3p3/1Pp1P3/2K5

#2

8 + 10


15256 TRD Scrapbook 2013

SOLUTION


  • SOUND
  • Sets
    • 1...Rc3
      • 2.bxc3#
    • 1...Rc4
      • 2.Sb3#
    • 1...Rd5
      • 2.Se6#
    • 1...f3
      • 2.Bxe3#
  • Tries
    • 1.Sxc6+?
      • 1...Kc4
        • 2.Rc3#
      • 1...Rxc6!
    • 1.Bxf4?
      • threat
        • 2.Bxe3#
      • 1...Rc3
        • 2.bxc3#
      • 1...exf4!
    • 1.Bh6?
      • 1...Rc3
        • 2.bxc3#
      • 1...Rc4
        • 2.Sb3#
      • 1...Rd5
        • 2.Se6#
      • 1...f3
        • 2.Bxe3#
      • 1...g5!
    • 1.Rb3?
      • 1...Rc3
        • 2.bxc3#
      • 1...Rd5
        • 2.Se6#
      • 1...f3
        • 2.Bxe3#
      • 1...Rc4!
  • Keys
    • 1.Be7!
      • threat
        • 2.Bxc5#
      • 1...Rc3
        • 2.bxc3#
      • 1...Rc4
        • 2.Sb3#
      • 1...Rd5
        • 2.Se6#

FEATURES


  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • R(g);OGATE::P(B),XR(g)
    • R(g);SBLOCK::S(F)
    • R(g);SBLOCK::S(H)
    • P(e);OGATE::B(G),XP(b)
  • Tries
    • Try
      • S(F);CHECK,XP(i)
      • Vars
        • K(c);P-FLIGHT::R1(D)
      • Refutation
        • R(g);XS(F)
    • Try
      • B(G);XP(e)
      • Threat
        • B(G),XP(b)
      • Vars
        • R(g);OGATE::P(B),XR(g)
      • Refutation
        • P(h);XB(G)
    • Try
      • B(G);
      • Vars
        • R(g);OGATE::P(B),XR(g)
        • R(g);SBLOCK::S(F)
        • R(g);SBLOCK::S(H)
        • P(e);OGATE::B(G),XP(b)
      • Refutation
        • P(j);
    • Try
      • R(D);
      • Vars
        • R(g);OGATE::P(B),XR(g)
        • R(g);SBLOCK::S(H)
        • P(e);OGATE::B(G),XP(b)
      • Refutation
        • R(g);
  • Actual
    • B(G);
    • Threat
      • B(G),XR(g)
    • Vars
      • R(g);OGATE::P(B),XR(g)
      • R(g);SBLOCK::S(F)
      • R(g);SBLOCK::S(H)


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).