MESON Chess Problem Database

Problem Display
PID: 124323 (6B1/bP5N/p1p2R2/Rb2k1p1/1pQ5/2q5/1B6/5K2 w - - 0 1)

Legentil, Georges

Problemes d'Echecs (Legentil), 1951

6B1/bP5N/p1p2R2/Rb2k1p1/1pQ5/2q5/1B6/5K2

#2

8 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qd4
      • 2.Qe2#
    • 1...Bg1
      • 2.b8Q#
      • 2.b8B#
    • 1...Bf2
      • 2.b8Q#
      • 2.b8B#
    • 1...Be3
      • 2.b8Q#
      • 2.b8B#
  • Tries
    • 1.Bxc3+?
      • 1...Bd4
        • 2.Qe2#
      • 1...bxc3!
    • 1.Rxb5+?
      • 1...Bc5
        • 2.Rxc5#
        • 2.b8Q#
        • 2.b8B#
      • 1...cxb5
        • 2.Qd5#
      • 1...c5
        • 2.Qd5#
      • 1...axb5!
  • Keys
    • 1.Qd3!
      • threat
        • 2.Rf5#
      • 1...Qd4
        • 2.Qe2#
      • 1...Bd4
        • 2.b8Q#
        • 2.b8B#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • Q(a);S_CUTB(h)::QAR(C)
    • B(h);N_GUARD::P=Q
  • Tries
    • Try
      • B(B);CHECK,XQ(a)
      • Vars
        • B(h);N_SPINB(c),P_SPINB(h)::QAR(C)
      • Refutation
        • P(b);XB(B)
    • Try
      • R(D);CHECK,N_SPINQ(C),XB(c)
      • Vars
        • P(g);N_GUARD,XR(D)::QAR1(C)
        • P(g);N_GUARD,P_SPINP(g)::QAR1(C)
      • Refutation
        • P(f);XR(D)
  • Actual
    • Q(C);
    • Threat
      • R1(E)
    • Vars
      • Q(a);S_CUTB(h)::QAR(C)
      • B(h);N_GUARD,N_SPINQ(a)::P=Q
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).