MESON Chess Problem Database

Problem Display
PID: 108173 (8/4p3/4B1N1/1NpP4/2bpk3/3R1p2/1R3P2/4K3 w - - 0 1)

Graham, John H

La Presse, 1896

8/4p3/4B1N1/1NpP4/2bpk3/3R1p2/1R3P2/4K3

#2

8 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd3
      • 2.Bf5#
  • Tries
    • 1.Re2+?
      • 1...Kxd3
        • 2.Sf4#
        • 2.Se5#
        • 2.Bf5#
      • 1...fxe2!
  • Keys
    • 1.Rb4!
      • 1...Kxd3
        • 2.Bf5#
      • 1...Bxd3
        • 2.Sc3#
      • 1...Bxb5
        • 2.Re3#
      • 1...Bxd5
        • 2.Re3#
      • 1...cxb4
        • 2.Rxd4#
      • 1...Ba2
        • 2.Re3#
      • 1...Bb3
        • 2.Re3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(d);S_FLIGHT,XR(D)::B(G)
  • Tries
    • Try
      • R(B);CHECK
      • Refutation
        • P(a);XR(B)
  • Actual
    • R(B);
    • Vars
      • K(d);S_FLIGHT,XR(D)::B(G)
      • B(b);P_SPINP(c),SBLOCK,XR(D)::S(E)
      • B(b);P_SPINP(c),XS(E)::R1(D)
      • B(b);P_SPINP(c),XP(F)::R1(D)
      • P(e);N_GUARD,XR(B)::R1(D),XP(c)
      • B(b);P_SPINP(c)::R1(D)
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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).