MESON Chess Problem Database

Problem Display
PID: 161978 (8/2b4K/6p1/1N1p4/1p2kPP1/1n5N/1B1PPp2/Q5q1 w - - 0 1)

Dujardin, Paul

Scacchi e Scienze Applicate, 1995

8/2b4K/6p1/1N1p4/1p2kPP1/1n5N/1B1PPp2/Q5q1

#2

9 + 8

15601 Albrecht-Leiss-Degener Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Qh2
      • 2.Qb1#
    • 1...Qb1
      • 2.Qxb1#
    • 1...Qh1
      • 2.Qxh1#
    • 1...Qg2
      • 2.Qb1#
    • 1...Qxg4
      • 2.Qb1#
    • 1...Ba5
      • 2.Sd6#
    • 1...Bb6
      • 2.Sd6#
    • 1...Bd6
      • 2.Sxd6#
    • 1...Bd8
      • 2.Sd6#
    • 1...f1S
      • 2.Qb1#
    • 1...f1B
      • 2.Qb1#
    • 1...d4
      • 2.Qa8#
  • Keys
    • 1.Be5!
      • threat
        • 2.Sg5#
      • 1...Qxg4
        • 2.Qb1#
      • 1...Bxe5
        • 2.Qxe5#
      • 1...Sxd2
        • 2.Qd4#
      • 1...d4
        • 2.Qa8#
      • 1...Qh2
        • 2.Qb1#
      • 1...Qh1
        • 2.Qxh1#
      • 1...Bd8
        • 2.Sd6#
      • 1...g5
        • 2.Sxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • Q(a);N_GUARD,P_PINS(E)::QAB(A)
    • Q(a);N_GUARD::QAB(A),XQ(a)
    • Q(a);OGATE,P_PINS(E)::QAB(A),XQ(a)
    • Q(a);N_GUARD::QAB(A)
    • Q(a);N_GUARD,XP(G)::QAB(A)
    • B(h);N_GUARD::S(H)
    • B(h);N_GUARD::S(H),XB(h)
    • P(b);S_CUTQ(a)::QAB(A)
    • P(f);OGATEB::QAB(A)
  • Actual
    • B(B);
    • Threat
      • S(E)
    • Vars
      • Q(a);N_GUARD,XP(G)::QAB(A)
      • B(h);OGATE,XB(B)::QAR1(A),XB(h)
      • S(c);N_GUARD,XP(C)::QAR1(A)
      • P(f);OGATEB::QAB(A)
      • Q(a);N_GUARD,P_PINS(E)::QAB(A)
      • Q(a);OGATE,P_PINS(E)::QAB(A),XQ(a)
      • B(h);N_GUARD::S(H)
      • P(g);::S(E),XP(g)
HTML5 logo

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).