MESON Chess Problem Database

Problem Display
PID: 186697 (4r3/8/2n4R/2qp3p/1N2k3/1N3pBB/2nP4/6bK w - - 0 1)

Harrison, G

Chess, 1960

4r3/8/2n4R/2qp3p/1N2k3/1N3pBB/2nP4/6bK

#2

7 + 9

5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Be3
      • 2.d3#
    • 1...Se3
      • 2.d3#
    • 1...S2d4
      • 2.Sxc5#
    • 1...S6d4
      • 2.Sxc5#
    • 1...Se7
      • 2.Re6#
    • 1...d4
      • 2.Sxc5#
    • 1...h4
      • 2.Rxh4#
  • Keys
    • 1.Rf6!
      • threat
        • 2.Bf5#
      • 1...Re5
        • 2.Rf4#
      • 1...Se3
        • 2.d3#
      • 1...S2d4
        • 2.Sxc5#
      • 1...S6d4
        • 2.Sxc5#
      • 1...Se7
        • 2.Re6#
      • 1...f2
        • 2.Bg2#
      • 1...d4
        • 2.Sxc5#

Anticipated by 53669(0000)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(a);SBLOCK::P(B)
    • S(b);SBLOCK::P(B)
    • S(b);SBLOCK,S_CUTB(a)::S(C),XQ(e)
    • S(h);SBLOCK,S_CUTB(a)::S(C),XQ(e)
    • S(h);N_GUARD,S_CUTR(i)::R(G)
    • P(f);SBLOCK,S_CUTB(a)::S(C),XQ(e)
    • P(g);OGATE::R(G),XP(g)
  • Actual
    • R(G);
    • Threat
      • B(E)
    • Vars
      • R(i);SBLOCK::R1(G)
      • S(b);SBLOCK::P(B)
      • S(b);SBLOCK,S_CUTB(a)::S(C),XQ(e)
      • S(h);SBLOCK,S_CUTB(a)::S(C),XQ(e)
      • S(h);N_GUARD,S_CUTR(i)::R(G)
      • P(c);OGATEB::B(E)
      • P(f);SBLOCK,S_CUTB(a)::S(C),XQ(e)
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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).