MESON Chess Problem Database

Problem Display
PID: 39622 (8/2Q5/1Kp1k1pN/2p1pp2/4P1N1/1p6/8/3q4 w - - 0 1)

Duciaume, Eric

Vo Van, N

StrateGems, 2001

8/2Q5/1Kp1k1pN/2p1pp2/4P1N1/1p6/8/3q4

#2

5 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qd6
      • 2.Qf7#
    • 1...Qd7
      • 2.Qxe5#
  • Keys
    • 1.Kxc6!
      • threat
        • 2.Qxe5#
        • 2.Qf7#
      • 1...Qd5+
        • 2.exd5#
      • 1...Qd6+
        • 2.Qxd6#
      • 1...Qd7+
        • 2.Qxd7#
      • 1...Qxg4
        • 2.Qd6#
        • 2.Qf7#
      • 1...fxg4
        • 2.Qf7#
      • 1...Qa1
        • 2.Qd6#
        • 2.Qd7#
        • 2.Qf7#
      • 1...Qd4
        • 2.Qf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • Q(a);SBLOCK::QAB1(E)
    • Q(a);SBLOCK::QAR1(E),XP(d)
  • Actual
    • K(C);P-FLIGHT,XP(f)
    • Threat
      • DUALS(2)
    • Vars
      • Q(a);CHECK,OGATE::P(A),XQ(a)
      • Q(a);CHECK,N_GUARD::QAR1(E),XQ(a)
      • Q(a);CHECK,N_GUARD::QAB1(E),XQ(a)
      • P(e);XS(B)::QAB1(E)
      • Q(a);::QAB1(E)
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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).