MESON Chess Problem Database

Problem Display
PID: 228251 (8/8/3R4/1b2p1B1/1k6/1P6/1Q1K4/8 w - - 0 1)

Howard, David M

Problem Observer, 2020

8/8/3R4/1b2p1B1/1k6/1P6/1Q1K4/8

#2

5 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Ka5
      • 2.Qc3#
    • 1...Kc5
      • 2.Qa3#
  • Keys
    • 1.Be7!
      • threat
        • 2.Ra6#
      • 1...Ka5
        • 2.Qc3#
      • 1...Kc5
        • 2.Qa3#
      • 1...Bf1
        • 2.Rd5#
      • 1...Be2
        • 2.Rd5#
      • 1...Bd3
        • 2.Rd5#
      • 1...Ba4
        • 2.Rd5#
      • 1...Bc4
        • 2.Rd5#
      • 1...Ba6
        • 2.Rd5#
      • 1...Bc6
        • 2.Rd5#
      • 1...Bd7
        • 2.Rd5#
      • 1...Be8
        • 2.Rd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB(A)
  • Actual
    • B(D);
    • Threat
      • B(D)+R(E)
    • Vars
      • K(a);S_FLIGHT::QAB(A)
      • B(b);::B(D)+R(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).