MESON Chess Problem Database

Problem Display
PID: 759 (3R4/8/8/1N6/1Pk1r1nQ/K1N5/8/6b1 w - - 0 1)

Daniel, Arthur William

British Chess Magazine, 1952

3R4/8/8/1N6/1Pk1r1nQ/K1N5/8/6b1

#2

6 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.Rd4#
    • 1...Se3
      • 2.Qxe4#
  • Keys
    • 1.Qh3!
      • threat
        • 2.Qd3#
      • 1...Re3
        • 2.Rd4#
      • 1...Rd4
        • 2.Rc8#
      • 1...Be3
        • 2.Qf1#
      • 1...Bd4
        • 2.Sd6#
      • 1...Sf2
        • 2.Rc8#
        • 2.Qc8#
      • 1...Se3
        • 2.Qc8#
      • 1...Se5
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(c);N_GUARD,P_PINS(B),P_SPINS(d),S_CUTB(a)::R1(F)
    • S(d);OGATE,P_SPINR(c)::QAR2(D),XR(c)
  • Actual
    • Q(D);
    • Threat
      • QAB1(D)
    • Vars
      • R(c);N_GUARD,P_PINS(B),S_CUTB(a)::R1(F)
      • R(c);S_CUTB(a)::R(F)
      • B(a);S_CUTR(c)::QAB(D)
      • B(a);SBLOCK::S(E)
      • S(d);OGATE::QAR(D)
      • S(d);OGATE::QAB(D)
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).