MESON Chess Problem Database

Problem Display
PID: 109074 (8/8/p1P2p2/Rp3Pp1/1N1ppkB1/R3N2K/8/2B5 w - - 0 1)

Nix, John Gilbert

Baltimore Item, 1882

8/8/p1P2p2/Rp3Pp1/1N1ppkB1/R3N2K/8/2B5

#2

9 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Sc4#
  • Tries
    • 1.Bb2?
      • 1...dxe3
        • 2.Sd5#
      • 1...d3
        • 2.Sg2#
        • 2.Sed5#
        • 2.Sbd5#
      • 1...Ke5!
    • 1.Rxb5?
      • threat
        • 2.Sg2#
      • 1...dxe3
        • 2.Bxe3#
      • 1...axb5!
  • Keys
    • 1.R3a4!
      • 1...Ke5
        • 2.Sc4#
      • 1...dxe3
        • 2.Sd3#
      • 1...bxa4
        • 2.Sg2#
      • 1...d3
        • 2.Sxd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);P_SPINP(d),S_FLIGHT::S(C)
  • Tries
    • Try
      • B(A);
      • Vars
        • P(a);XS(C)::S(E)
      • Refutation
        • K(c);P_SPINP(a),S_FLIGHT
    • Try
      • R(G);XP(d)
      • Threat
        • B(A)+S(C),DCHECK
      • Vars
        • P(a);OGATE,P_SPINP(a),XS(C)::B(A),XP(a)
      • Refutation
        • P(f);XR(G)
  • Actual
    • R(B);
    • Vars
      • K(c);P_SPINP(d),S_FLIGHT::S(C)
      • P(a);P_SPINP(a),S_CUTP(b),XS(C)::S(E)
      • P(d);XR(B)::B(A)+S(C),DCHECK
      • P(a);S_CUTP(b)::S(E),XP(a)
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).