MESON Chess Problem Database

Problem Display
PID: 78898 (1bN2N2/8/5p2/1p1P1kp1/1R1n2p1/KQp2qB1/1PP5/5R2 w - - 0 1)

Commandeur, Henri

L'Echiquier de Paris, 1955

1bN2N2/8/5p2/1p1P1kp1/1R1n2p1/KQp2qB1/1PP5/5R2

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6
      • 2.Sxd6#
    • 1...Ba7
      • 2.Sd6#
    • 1...Sxc2+
      • 2.Qxc2#
    • 1...Se2
      • 2.Se7#
    • 1...Sxb3
      • 2.Se7#
    • 1...Se6
      • 2.Se7#
    • 1...cxb2
      • 2.Qd3#
  • Keys
    • 1.d6!
      • threat
        • 2.Qd5#
      • 1...Sxc2+
        • 2.Qxc2#
      • 1...Ke4
        • 2.Qe6#
      • 1...Bxd6
        • 2.Sxd6#
      • 1...Sxb3
        • 2.Se7#
      • 1...cxb2
        • 2.Qd3#
      • 1...Sc6
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • B(i);N_GUARD,P_PINR(G)::S(I),XB(i)
    • B(i);N_GUARD::S(I)
    • S(c);CHECK,OGATE,XP(C)::QAB(E),XS(c)
    • S(c);::S(I)
    • S(c);XQ(E)::S(I)
    • P(a);OGATE,P_PINQ(E),XP(B)::QAB(E)
  • Actual
    • P(H);
    • Threat
      • QAR2(E)
    • Vars
      • S(c);CHECK,OGATE,XP(C)::QAB(E),XS(c)
      • K(f);N_SPINQ(b),P_SPINS(c),S_FLIGHT::QAR2(E)
      • B(i);P_PINR(G),XP(H)::S(I),XB(i)
      • S(c);XQ(E)::S(I)
      • P(a);OGATE,P_PINQ(E),XP(B)::QAB(E)
      • S(c);N_GUARD::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).