MESON Chess Problem Database

Problem Display
PID: 200373 (1b6/1b6/8/5p2/5kNK/1Q2pP2/8/2r1rR2 w - - 0 1)

Kuijers, LA

Op de Hoogte, 1915

1b6/1b6/8/5p2/5kNK/1Q2pP2/8/2r1rR2

#2

5 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Qxe3#
    • 1...Rxf1
      • 2.Qxe3#
    • 1...Bc6
      • 2.Qxb8#
    • 1...e2
      • 2.Qe3#
  • Keys
    • 1.Qb6!
      • threat
        • 2.Qh6#
      • 1...Rxf1
        • 2.Qxe3#
      • 1...Bxf3
        • 2.Qd4#
      • 1...fxg4
        • 2.Qf6#
      • 1...Rc6
        • 2.Qd4#
      • 1...Bc6
        • 2.Qxb8#
      • 1...Bd6
        • 2.Qxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • R(b);N_GUARD::QAB1(B),XP(c)
    • R(b);N_GUARD,XR(A)::QAB1(B),XP(c)
    • B(f);OGATE::QAB(B),XB(g)
    • P(c);S_CUTR(b)::QAB1(B)
  • Actual
    • Q(B);
    • Threat
      • QAB(B)
    • Vars
      • R(b);N_GUARD,XR(A)::QAB1(B),XP(c)
      • B(f);N_GUARD,P_SPINB(f),XP(C)::QAR2(B)
      • P(e);OGATEB,XS(D)::QAR2(B)
      • R(a);S_CUTB(f)::QAR2(B)
      • B(f);OGATE::QAB(B),XB(g)
      • B(g);N_GUARD::QAB(B),XB(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).