Problem Display
PID: 132946 (6r1/b1p5/6p1/B4P1p/3N3k/5P1p/4P2P/R3K1R1 w Q - 0 1)

Massingham, HW

The Field, 1959

(First published on Thu Aug 27 1959)

6r1/b1p5/6p1/B4P1p/3N3k/5P1p/4P2P/R3K1R1

#2

9 + 7


SOLUTION


  • SOUND
  • Sets
    • 1...gxf5
      • 2.Sxf5#
  • Tries
    • 1.Kd1?
      • threat
        • 2.Be1#
      • 1...gxf5
        • 2.Sxf5#
      • 1...Bxd4!
    • 1.Kf1?
      • threat
        • 2.Be1#
      • 1...gxf5
        • 2.Sxf5#
      • 1...Bxd4!
    • 1.Bd2?
      • threat
        • 2.Bg5#
      • 1...gxf5
        • 2.Sxf5#
      • 1...g5!
  • Keys
    • 1.0-0-0!
      • threat
        • 2.Be1#
      • 1...Bxd4
        • 2.Rxd4#
      • 1...gxf5
        • 2.Sxf5#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(d);XP(I)::S(G),XP(d)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Threat
        • B(H)
      • Vars
        • P(d);XP(I)::S(G),XP(d)
      • Refutation
        • B(e);XS(G)
    • Try
      • K(B);P-FLIGHT
      • Threat
        • B(H)
      • Vars
        • P(d);XP(I)::S(G),XP(d)
      • Refutation
        • B(e);XS(G)
    • Try
      • B(H);
      • Threat
        • B(H)
      • Vars
        • P(d);XP(I)::S(G),XP(d)
      • Refutation
        • P(d);
  • Actual
    • K(B);0-0-0
    • Threat
      • B(H)
    • Vars
      • B(e);OGATE,XS(G)::R(A),XB(e)
      • P(d);XP(I)::S(G),XP(d)


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).