MESON Chess Problem Database

Problem Display
PID: 51014 (2b5/8/6nN/1Rpp3N/4k3/r1p4P/1PP2K2/1B1Q4 w - - 0 1)

Hirst, CA

Dewsbury Reporter, 1910

2b5/8/6nN/1Rpp3N/4k3/r1p4P/1PP2K2/1B1Q4

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...c4
      • 2.Qxd5#
  • Tries
    • 1.Qg4+?
      • 1...Ke5
        • 2.Sf7#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Bxg4!
  • Keys
    • 1.Sf7!
      • threat
        • 2.Qd3#
      • 1...Kf5
        • 2.Qg4#
      • 1...cxb2
        • 2.c3#
      • 1...d4
        • 2.Qf3#
      • 1...Sf4
        • 2.Sg3#
      • 1...Se5
        • 2.Sd6#
      • 1...c4
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • P(d);::QAB1(B),XP(e)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);P-FLIGHT::S(I)
        • S(f);N_GUARD,P_SPINS(f)::QAR1(B),XS(f)
      • Refutation
        • B(g);XQ(B)
  • Actual
    • S(I);
    • Threat
      • QAB1(B)
    • Vars
      • K(c);S_FLIGHT::QAB1(B)
      • P(b);OGATE,XP(C)::B(A)+P(D)
      • P(e);SBLOCK::QAB1(B)
      • S(f);SBLOCK::S(H)
      • S(f);SBLOCK::S(I)
      • P(d);::QAB1(B),XP(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).