MESON Chess Problem Database

Problem Display
PID: 269507 (Kb1Q4/2p1q3/p3P3/4BB2/3P1R1p/1p3p2/1P1kpP2/R3N2b w - - 0 1)

Howard, Kenneth Samuel

British Chess Magazine, 1934

Kb1Q4/2p1q3/p3P3/4BB2/3P1R1p/1p3p2/1P1kpP2/R3N2b

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qc5
      • 2.dxc5#
    • 1...c5
      • 2.Qa5#
  • Tries
    • 1.Re4?
      • threat
        • 2.Bf4#
      • 1...Qg5
        • 2.Qxg5#
      • 1...Qd6
        • 2.Qg5#
      • 1...c5
        • 2.Qa5#
      • 1...c6!
    • 1.Rg4?
      • threat
        • 2.Bf4#
      • 1...Qxe6
        • 2.Qg5#
      • 1...Qg5
        • 2.Qxg5#
      • 1...Qd6
        • 2.Qg5#
      • 1...c5
        • 2.Qa5#
      • 1...c6!
  • Keys
    • 1.Rxf3!
      • threat
        • 2.Bf4#
      • 1...Bxf3+
        • 2.Sxf3#
      • 1...Qxe6
        • 2.Qg5#
      • 1...Qg5
        • 2.Qxg5#
      • 1...Qd6
        • 2.Qg5#
      • 1...c5
        • 2.Qa5#
      • 1...c6
        • 2.Rd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • Q(i);OGATE::QAR(K)+P(E),XQ(i)
    • P(h);OGATE::QAB(K)
  • Tries
    • Try
      • R(F);
      • Threat
        • B(G)
      • Vars
        • Q(i);OGATE::QAB(K),XQ(i)
        • Q(i);OGATE::QAB(K)
        • P(h);OGATE::QAB(K)
      • Refutation
        • P(h);
    • Try
      • R(F);
      • Threat
        • B(G)
      • Vars
        • Q(i);OGATE,XP(I)::QAB(K)
        • Q(i);OGATE::QAB(K),XQ(i)
        • Q(i);OGATE::QAB(K)
        • P(h);OGATE::QAB(K)
      • Refutation
        • P(h);
  • Actual
    • R(F);P_SPINR(F),XP(e)
    • Threat
      • B(G)
    • Vars
      • B(a);CHECK,XR(F)::S(B),XB(a)
      • Q(i);OGATE,XP(I)::QAB(K)
      • Q(i);OGATE::QAB(K),XQ(i)
      • Q(i);OGATE::QAB(K)
      • P(h);OGATE::QAB(K)
      • P(h);N_PINR(F)::R1(F)
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).