MESON Chess Problem Database

Problem Display
PID: 48102 (3Q4/8/4r3/4b3/8/4N2k/4K2P/8 w - - 0 1)

Lincoln, Robert A

Still More Fun with Chess Miniatures, 2002

3Q4/8/4r3/4b3/8/4N2k/4K2P/8

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Qh8+?
      • 1...Rh6
        • 2.Qxh6#
      • 1...Bxh8!
  • Keys
    • 1.Qg5!
      • threat
        • 2.Qh5#
      • 1...Kxh2
        • 2.Qg2#
      • 1...Bxh2
        • 2.Qg4#
      • 1...Rh6
        • 2.Qxh6#
      • 1...Bg3
        • 2.Qxg3#
      • 1...Bf6
        • 2.Qg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • R(c);N_GUARD,P_SPINR(c)::QAR(D),XR(c)
      • Refutation
        • B(b);P_PINS(C),XQ(D)
  • Actual
    • Q(D);
    • Threat
      • QAR2(D)
    • Vars
      • K(a);P-FLIGHT,XP(B)::QAR1(D)
      • B(b);P_PINS(C),SBLOCK,XP(B)::QAB1(D)
      • R(c);N_GUARD::QAR(D),XR(c)
      • B(b);N_GUARD,P_PINS(C)::QAR1(D),XB(b)
      • B(b);N_GUARD,P_PINS(C)::QAR1(D)
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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).