Problem Display
PID: 148558 (k7/2K5/1P3p2/5P2/2p1P3/2P1p3/4B1n1/5bR1 w - - 0 1)

Dawson, Thomas Rayner

Cheltenham Examiner, 1913

(First published on Thu Jan 16 1913)

k7/2K5/1P3p2/5P2/2p1P3/2P1p3/4B1n1/5bR1

#2

7 + 6


15256 TRD Scrapbook 2013

SOLUTION


  • SOUND
  • Sets
    • 1...Bxe2
      • 2.Ra1#
    • 1...Se1
      • 2.Rg8#
    • 1...Sf4
      • 2.Rg8#
    • 1...Sh4
      • 2.Rg8#
  • Tries
    • 1.Bxf1?
      • 1...Se1
        • 2.Rg8#
      • 1...Sf4
        • 2.Rg8#
      • 1...Sh4
        • 2.Rg8#
      • 1...e2!
    • 1.Bxc4?
      • threat
        • 2.Bd5#
      • 1...Sf4
        • 2.Rg8#
      • 1...Bxc4!
    • 1.Bh5?
      • 1...Be2
        • 2.Ra1#
      • 1...Bd3
        • 2.Ra1#
      • 1...Se1
        • 2.Rg8#
      • 1...Sf4
        • 2.Rg8#
      • 1...Sh4
        • 2.Rg8#
      • 1...e2!
    • 1.e5?
      • threat
        • 2.Bf3#
      • 1...Bxe2
        • 2.Ra1#
      • 1...Se1
        • 2.Rg8#
      • 1...Sf4
        • 2.Rg8#
      • 1...Sh4
        • 2.Rg8#
      • 1...fxe5!
  • Keys
    • 1.Bf3!
      • threat
        • 2.e5#
      • 1...Be2
        • 2.Ra1#
      • 1...Bd3
        • 2.Ra1#
      • 1...Se1
        • 2.Rg8#
      • 1...Sf4
        • 2.Rg8#
      • 1...Sh4
        • 2.Rg8#

FEATURES


  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(a);OGATE,XB(B)::R(A)
    • S(b);OGATE::R(A)
  • Tries
    • Try
      • B(B);XB(a)
      • Vars
        • S(b);OGATE::R(A)
      • Refutation
        • P(c);
    • Try
      • B(B);XP(d)
      • Threat
        • B(B)
      • Vars
        • S(b);OGATE::R(A)
      • Refutation
        • B(a);XB(B)
    • Try
      • B(B);
      • Vars
        • B(a);OGATE::R(A)
        • S(b);OGATE::R(A)
      • Refutation
        • P(c);
    • Try
      • P(D);
      • Threat
        • B(B)
      • Vars
        • B(a);OGATE,XB(B)::R(A)
        • S(b);OGATE::R(A)
      • Refutation
        • P(e);XP(D)
  • Actual
    • B(B);
    • Threat
      • B(B)+P(D)
    • Vars
      • B(a);OGATE::R(A)
      • S(b);OGATE::R(A)


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).