MESON Chess Problem Database

Problem Display
PID: 146034 (8/8/2B5/4P3/2q2p1B/1Q3P1p/R1PP2kp/1K1R3b w - - 0 1)

Windle, REL

Good Companions (January black Queen), 1918

8/8/2B5/4P3/2q2p1B/1Q3P1p/R1PP2kp/1K1R3b

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Qf1
      • 2.Qg8#
    • 1...Qe2
      • 2.Qg8#
    • 1...Qa6
      • 2.Qg8#
    • 1...Qg8
      • 2.Qxg8#
    • 1...Qc3
      • 2.Qg8#
    • 1...Qa4
      • 2.Qg8#
    • 1...Qd4
      • 2.Qg8#
    • 1...Qc5
      • 2.Qg8#
  • Keys
    • 1.d4!
      • 1...Qxb3+
        • 2.cxb3#
      • 1...Qxc2+
        • 2.Rxc2#
        • 2.Qxc2#
      • 1...Qxd4
        • 2.Qg8#
      • 1...Qxc6
        • 2.c4#
      • 1...Qf1
        • 2.Qg8#
      • 1...Qe2
        • 2.Qg8#
      • 1...Qd3
        • 2.cxd3#
      • 1...Qb5
        • 2.c4#
      • 1...Qd5
        • 2.c4#
      • 1...Qa6
        • 2.Qg8#
      • 1...Qe6
        • 2.c3#
        • 2.c4#
      • 1...Qf7
        • 2.c3#
        • 2.c4#
      • 1...Qg8
        • 2.Qxg8#
        • 2.c3#
        • 2.c4#
      • 1...Qc3
        • 2.Qg8#
      • 1...Qa4
        • 2.Qg8#
      • 1...Qb4
        • 2.c3#
      • 1...Qc5
        • 2.Qg8#
        • 2.c3#
        • 2.c4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • Q(e);OGATE,P_PINR(B)::QAR(F)
    • Q(e);OGATE::QAR(F)
    • Q(e);OGATE::QAR(F),XQ(e)
  • Actual
    • P(E);
    • Vars
      • Q(e);CHECK,OGATE,XQ(F)::R(C)+P(D),XQ(e)
      • Q(e);OGATE,XP(E)::QAR(F)
      • Q(e);OGATE,XB(J)::R(C)+P(D)
      • Q(e);OGATE,P_PINR(B)::QAR(F)
      • Q(e);OGATE::QAR(F)
      • Q(e);OGATE,P_PINP(D)::R(C)+P(D),XQ(e)
      • Q(e);OGATE,P_PINQ(F)::R(C)+P(D)
      • Q(e);OGATE::R(C)+P(D)
      • Q(e);N_GUARD,P_PINQ(F)::R(C)+P(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).