MESON Chess Problem Database

Problem Display
PID: 101383 (8/6R1/KP5B/1QPR4/8/2Pp1k2/4bq2/8 w - - 0 1)

Sparke, Arthur M

Good Companions (April), 1919

8/6R1/KP5B/1QPR4/8/2Pp1k2/4bq2/8

#2

8 + 4

6490 yacpdb 2009
14868 Pirnie Collection 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qxd3+?
      • 1...Qe3
        • 2.Rf5#
      • 1...Bxd3+!
  • Keys
    • 1.Qc6!
      • threat
        • 2.Rxd3#
        • 2.Rd4#
        • 2.Re5#
        • 2.Rf5#
        • 2.Rh5#
        • 2.Rd6#
        • 2.Rdd7#
        • 2.Rd8#
      • 1...d2+
        • 2.Rd3#
      • 1...Ke4
        • 2.Rh5#
      • 1...Qxc5
        • 2.Rf5#
      • 1...Qe1
        • 2.Rf5#
      • 1...Qg1
        • 2.Rf5#
      • 1...Qe3
        • 2.Rf5#
      • 1...Qg3
        • 2.Rf5#
      • 1...Qd4
        • 2.Rf5#
      • 1...Qh4
        • 2.Rf5#
      • 1...Qf1
        • 2.Rf5#
      • 1...Qg2
        • 2.Rf5#
      • 1...Qh2
        • 2.Rf5#
      • 1...Bd1
        • 2.Re5#
      • 1...Bf1
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 14
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK,P_SPINQ(B),XP(c)
      • Vars
        • Q(b);P_SPINQ(b)::R(D)
      • Refutation
        • B(a);CHECK,XQ(B)
  • Actual
    • Q(B);
    • Threat
      • DUALS(8)
    • Vars
      • P(c);CHECK::QAB(B)+R(D),DCHECK
      • K(d);S_FLIGHT::QAB(B)+R(D)
      • Q(b);XP(C)::QAB(B)+R(D),DCHECK
      • Q(b);::QAB(B)+R(D),DCHECK
      • B(a);::QAB(B)+R(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).