MESON Chess Problem Database

Problem Display
PID: 60671 (2B2B2/1nr1n3/R5rR/3k3q/1PN5/1P1PpN1b/2Kb4/7Q w - - 0 1)

McIntyre, Donald Glenoe

Wallis, Walter Warren

South African Chess Magazine, 1946

2B2B2/1nr1n3/R5rR/3k3q/1PN5/1P1PpN1b/2Kb4/7Q

#2

11 + 9

5639 Some Problems For My Friends 1957

SOLUTION

  • SOUND
  • Sets
    • 1...Rg4
      • 2.Be6#
    • 1...Rxc4+
      • 2.bxc4#
    • 1...Bc3
      • 2.Sxe3#
    • 1...Sc6
      • 2.Sb6#
  • Keys
    • 1.Qa1!
      • threat
        • 2.Qd4#
      • 1...Rxc4+
        • 2.bxc4#
      • 1...Qxf3
        • 2.Qe5#
      • 1...Qg4
        • 2.Qe5#
      • 1...Qh4
        • 2.Qe5#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Rg4
        • 2.Be6#
      • 1...Bc3
        • 2.Sxe3#
      • 1...Sf5
        • 2.Qe5#
      • 1...Sc6
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • R(f);N_GUARD,S_CUTB(c)::B(J)
    • R(h);CHECK,OGATE,XS(G)::P(C),XR(h)
    • B(a);N_PINS(G)::S(G),XP(b)
    • S(i);N_PINS(G),SBLOCK::S(G)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • R(h);CHECK,OGATE,XS(G)::P(C),XR(h)
      • Q(e);N_GUARD,XS(E)::QAR1(A)
      • Q(e);N_GUARD::QAR1(A)
      • Q(e);N_GUARD::QAR1(A),XQ(e)
      • R(f);N_GUARD,S_CUTB(c)::B(J)
      • B(a);N_PINS(G)::S(G),XP(b)
      • S(i);S_CUTQ(e)::QAR1(A)
      • S(i);N_PINS(G),SBLOCK::S(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).