MESON Chess Problem Database

Problem Display
PID: 102428 (B1N2N2/2pn1Rp1/3bpq2/R1n2k2/6pP/6P1/1Q6/K7 w - - 0 1)

Legentil, Georges

L'Echiquier, 1934

B1N2N2/2pn1Rp1/3bpq2/R1n2k2/6pP/6P1/1Q6/K7

#2

9 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bf4
      • 2.Se7#
    • 1...Be5
      • 2.Se7#
    • 1...Be7
      • 2.Sxe7#
    • 1...e5
      • 2.Qf2#
    • 1...c6
      • 2.Sxd6#
  • Keys
    • 1.Qd4!
      • threat
        • 2.Be4#
      • 1...Bxg3
        • 2.Se7#
      • 1...Be5
        • 2.Se7#
      • 1...Se5
        • 2.Qf4#
      • 1...e5
        • 2.Qf2#
      • 1...c6
        • 2.Sxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(d);N_GUARD::S(H)
    • B(d);N_GUARD,N_SPINS(b)::S(H)
    • B(d);N_GUARD::S(H),XB(d)
    • P(e);N_PINQ(B),N_SPINS(b),SBLOCK::QAR(B)
    • P(g);N_GUARD::S(H),XB(d)
  • Actual
    • Q(B);
    • Threat
      • B(G)
    • Vars
      • B(d);N_GUARD,XP(C)::S(H)
      • B(d);N_GUARD,N_SPINS(b)::S(H)
      • S(h);N_PINQ(B),N_SPINS(b)::QAR1(B)
      • P(e);N_PINQ(B),N_SPINS(b),SBLOCK::QAR(B)
      • P(g);N_GUARD::S(H),XB(d)
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).