MESON Chess Problem Database

Problem Display
PID: 96704 (8/P1N1qRQ1/r1bk4/1Pn1N3/p3n1r1/P2p4/BK4pB/2R5 w - - 0 1)

Simmer, Charles Henry

The Chess Problem, 1946

8/P1N1qRQ1/r1bk4/1Pn1N3/p3n1r1/P2p4/BK4pB/2R5

#2

11 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qh4
      • 2.Sc4#
    • 1...Qg5
      • 2.Sc4#
    • 1...Qd8
      • 2.Sc4#
    • 1...Qf8
      • 2.Sc4#
      • 2.Qxf8#
    • 1...Qxe5+
      • 2.Bxe5#
      • 2.Qxe5#
    • 1...Qe6
      • 2.Sc4#
    • 1...Qd7
      • 2.Sc4#
    • 1...Qe8
      • 2.Sc4#
    • 1...Bxb5
      • 2.Sxb5#
    • 1...Bd7
      • 2.Sc4#
  • Keys
    • 1.Qf8!
      • threat
        • 2.Qxe7#
      • 1...Kxc7
        • 2.Qb8#
      • 1...Qxf8
        • 2.Sc4#
      • 1...Bd7
        • 2.Sc4#
      • 1...Sd7
        • 2.Se8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • Q(j);::B(D)+S(G),DCHECK
    • B(h);XP(F)::S(I),XB(h)
    • B(h);SBLOCK::B(D)+S(G),DCHECK
  • Actual
    • Q(K);P_PINQ(j)
    • Threat
      • QAB1(K),XQ(j)
    • Vars
      • K(i);OGATEB,S_FLIGHT,XS(I)::QAB1(K)
      • Q(j);N_SPINQ(j),XQ(K)::B(D)+S(G),DCHECK
      • B(h);SBLOCK::B(D)+S(G),DCHECK
      • S(f);S_CUTB(h)::S(I)
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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).