MESON Chess Problem Database

Problem Display
PID: 16422 (Q7/2N4p/1K6/2P1kpP1/5N1r/1b1Ppp1P/1q6/8 w - - 0 1)

Wenman, Francis Percival (aka Percy Wenman)

Fifty Two-Move Problems, 1940

Q7/2N4p/1K6/2P1kpP1/5N1r/1b1Ppp1P/1q6/8

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qh8#
    • 1...Rxf4
      • 2.Qh8#
  • Keys
    • 1.Qb8!
      • threat
        • 2.Sb5#
        • 2.Sce6#
      • 1...Rh6+
        • 2.Sce6#
      • 1...Bd1+
        • 2.Sb5#
      • 1...Ba2+
        • 2.Sb5#
      • 1...Bc2+
        • 2.Sb5#
      • 1...Ba4+
        • 2.Sb5#
      • 1...Bc4+
        • 2.Sb5#
      • 1...Bd5+
        • 2.Sb5#
      • 1...Be6+
        • 2.Sb5#
      • 1...Bf7+
        • 2.Sb5#
      • 1...Bg8+
        • 2.Sb5#
      • 1...Kd4
        • 2.Sb5#
        • 2.Qh8#
      • 1...Kxf4
        • 2.Se6#
      • 1...Rxf4
        • 2.Qh8#
      • 1...Qd4
        • 2.Scd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 1
  • Sets
    • K(f);S_FLIGHT::QAB(H)
    • R(e);SBLOCK,XS(C)::QAB(H)
  • Actual
    • Q(H);
    • Threat
      • DUALS(2)
    • Vars
      • R(e);CHECK::QAB(H)+S(G)
      • B(b);CHECK::QAB(H)+S(G)
      • K(f);S_FLIGHT,XS(C)::QAB(H)+S(G),DCHECK
      • R(e);SBLOCK,XS(C)::QAB(H)
      • Q(a);P_PINP(D),SBLOCK::QAB(H)+S(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).