MESON Chess Problem Database

Problem Display
PID: 120611 (2nqn3/1pN5/1p1kPp2/1P6/1K3P2/2R1R1BB/2pN4/3Q4 w - - 0 1)

Hume, George

Thema Danicum, 1986

2nqn3/1pN5/1p1kPp2/1P6/1K3P2/2R1R1BB/2pN4/3Q4

#2

11 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qe7
      • 2.Se4#
      • 2.Red3#
      • 2.f5#
    • 1...Se7
      • 2.Se4#
      • 2.f5#
  • Keys
    • 1.e7!
      • threat
        • 2.exd8Q#
        • 2.exd8R#
      • 1...Qxc7
        • 2.Sc4#
        • 2.Rcd3#
      • 1...Qxe7
        • 2.Se4#
        • 2.Red3#
      • 1...Sxe7
        • 2.Se4#
      • 1...Sxc7
        • 2.Sc4#
        • 2.exd8Q#
        • 2.exd8R#
      • 1...cxd1Q
        • 2.exd8Q#
        • 2.exd8R#
      • 1...cxd1S
        • 2.exd8Q#
        • 2.exd8R#
      • 1...cxd1B
        • 2.exd8Q#
        • 2.exd8R#
      • 1...cxd1R
        • 2.exd8Q#
        • 2.exd8R#
      • 1...f5
        • 2.exd8Q#
        • 2.exd8R#
      • 1...c1Q
        • 2.exd8Q#
        • 2.exd8R#
      • 1...c1S
        • 2.exd8Q#
        • 2.exd8R#
      • 1...c1B
        • 2.exd8Q#
        • 2.exd8R#
      • 1...c1R
        • 2.exd8Q#
        • 2.exd8R#
      • 1...Qd7
        • 2.f5#
      • 1...Sa7
        • 2.exd8Q#
        • 2.exd8R#
      • 1...Sg7
        • 2.exd8Q#
        • 2.exd8R#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Actual
    • P(J);
    • Threat
      • PXQ(g)=Q
    • Vars
      • S(f);SBLOCK,XP(J)::QAR(A)+S(B),DCHECK
      • P(a);XQ(A)::PXQ(g)=Q
      • P(d);::PXQ(g)=Q
      • P(a);::PXQ(g)=Q
      • Q(g);SBLOCK::B(E)+P(H)
      • S(f);::PXQ(g)=Q
      • S(h);::PXQ(g)=Q
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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).