MESON Chess Problem Database

Problem Display
PID: 72353 (1n1RbR1n/8/4p3/1Q6/1PP1p3/8/3b1BPr/1K1k2N1 w - - 0 1)

Kipping, Cyril Stanley

Chess, 1953

1n1RbR1n/8/4p3/1Q6/1PP1p3/8/3b1BPr/1K1k2N1

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bh5
      • 2.Qa4#
    • 1...Bg6
      • 2.Qa4#
    • 1...Bf7
      • 2.Qa4#
    • 1...Sc6
      • 2.Qa4#
    • 1...Sd7
      • 2.Qa4#
  • Tries
    • 1.Qg5?
      • threat
        • 2.Rxd2#
        • 2.Qxd2#
        • 2.Qg4#
      • 1...Rxg2
        • 2.Rxd2#
        • 2.Qxd2#
      • 1...Bd7
        • 2.Qg4#
      • 1...Rh3
        • 2.Rxd2#
        • 2.Qxd2#
      • 1...Rh4
        • 2.Rxd2#
        • 2.Qxd2#
      • 1...Bh5
        • 2.Rxd2#
        • 2.Qxd2#
      • 1...Sd7
        • 2.Qg4#
      • 1...e3!
    • 1.c5?
      • threat
        • 2.Qf1#
        • 2.Qe2#
      • 1...Bd7
        • 2.Qe2#
      • 1...Bh5
        • 2.Qf1#
        • 2.Qa4#
      • 1...Sd7
        • 2.Qe2#
        • 2.Qa4#
      • 1...Bxb5!
  • Keys
    • 1.Bh4!
      • threat
        • 2.Rf1#
      • 1...Bd7
        • 2.Qh5#
      • 1...Bf7
        • 2.Qa4#
      • 1...Sd7
        • 2.Qa4#
      • 1...Sf7
        • 2.Qh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • B(g);N_GUARD::QAB(G)
    • S(f);S_CUTB(g)::QAB(G)
    • S(f);N_SPINB(b),S_CUTB(g)::QAB(G)
  • Tries
    • Try
      • Q(G);
      • Threat
        • DUALS(3)
      • Vars
        • B(g);N_SPINB(b)::QAB(G)
        • S(f);N_SPINB(b)::QAB(G)
      • Refutation
        • P(d);
    • Try
      • P(F);
      • Threat
        • DUALS(2)
      • Vars
        • B(g);N_SPINB(b)::QAB1(G)
      • Refutation
        • B(g);XQ(G)
  • Actual
    • B(C);
    • Threat
      • R(I)
    • Vars
      • B(g);N_GUARD,N_SPINB(b)::QAB(G)
      • B(g);N_GUARD::QAB(G)
      • S(f);N_SPINB(b),S_CUTB(g)::QAB(G)
      • S(h);S_CUTB(g)::QAB(G)
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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).