MESON Chess Problem Database

Problem Display
PID: 4684 (1K6/6N1/2p5/1p4P1/1P1n1k2/Q3pBRP/b1p5/B1nrrN2 w - - 0 1)

Laws, Benjamin Glover

HM., Ottawa Citizen, 1886

1K6/6N1/2p5/1p4P1/1P1n1k2/Q3pBRP/b1p5/B1nrrN2

#2

10 + 10

3316 Chess Problem Text Book 1887
2794 Terms & Themes of Chess Problems 1907
3571 An English Bohemian 1933

SOLUTION

  • SOUND
  • Sets
    • 1...Sce2
      • 2.Qxe3#
    • 1...Sde2
      • 2.Qxe3#
    • 1...Sxf3
      • 2.Rg4#
    • 1...Sf5
      • 2.Sh5#
    • 1...e2
      • 2.Qe3#
  • Keys
    • 1.Qa7!
      • threat
        • 2.Qc7#
      • 1...Ke5
        • 2.Qc7#
      • 1...Sxf3
        • 2.Rg4#
      • 1...Sd3
        • 2.Qxd4#
      • 1...Sde2
        • 2.Qxe3#
      • 1...Sdb3
        • 2.Qf7#
      • 1...Sf5
        • 2.Sh5#
      • 1...Se6
        • 2.Qf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • S(a);S_CUTR(c)::QAB1(C),XP(f)
    • S(g);S_CUTR(c)::QAB1(C),XP(f)
    • S(g);SBLOCK,XB(D)::R1(E)
    • S(g);SBLOCK::S(I)
    • P(f);S_CUTR(c)::QAB1(C)
  • Actual
    • Q(C);
    • Threat
      • QAB(C)
    • Vars
      • K(h);P_SPINS(g),S_FLIGHT::QAB(C)
      • S(g);SBLOCK,XB(D)::R1(E)
      • S(a);S_CUTR(b)::QAR2(C),XS(g)
      • S(g);OGATE::QAB1(C),XP(f)
      • S(g);N_GUARD,S_CUTB(d)::QAR(C)
      • S(g);SBLOCK::S(I)
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).