MESON Chess Problem Database

Problem Display
PID: 188035 (KQ6/4Pq2/2B2pP1/p1pPP2N/r2Nk1P1/3p1p2/1B1P1b2/8 w - - 0 1)

Robert, Philippe

harmonie-aktiv, 2014

KQ6/4Pq2/2B2pP1/p1pPP2N/r2Nk1P1/3p1p2/1B1P1b2/8

#2

12 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qe6
      • 2.dxe6#
  • Tries
    • 1.Sb5?
      • threat
        • 2.Sd6#
      • 1...Qxe7
        • 2.d6#
      • 1...Qe6
        • 2.dxe6#
      • 1...Rd4
        • 2.Sc3#
      • 1...Bd4!
    • 1.Sf5?
      • threat
        • 2.Sd6#
      • 1...Qxe7
        • 2.d6#
      • 1...Qe6
        • 2.dxe6#
      • 1...Bd4
        • 2.Sfg3#
      • 1...Rd4!
    • 1.d6+?
      • 1...Kxe5
        • 2.d7#
      • 1...Qd5!
    • 1.e6?
      • threat
        • 2.Qf4#
      • 1...Qe8
        • 2.Sxf6#
      • 1...Qg8
        • 2.Sxf6#
      • 1...Be3
        • 2.Sg3#
      • 1...Bg3
        • 2.Sxg3#
      • 1...Qf8!
  • Keys
    • 1.Se6!
      • threat
        • 2.d6#
      • 1...Qxe6
        • 2.dxe6#
      • 1...Qe8
        • 2.Sxf6#
      • 1...Rd4
        • 2.Sxc5#
      • 1...Bd4
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • Q(i);OGATE::B(H)+P(E),XQ(i)
  • Tries
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • Q(i);N_GUARD,XP(J)::B(H)+P(E)
        • Q(i);OGATE::B(H)+P(E),XQ(i)
        • R(d);SBLOCK::S(C)
      • Refutation
        • B(a);
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • Q(i);N_GUARD,XP(J)::B(H)+P(E)
        • Q(i);OGATE::B(H)+P(E),XQ(i)
        • B(a);N_GUARD::S(C)
      • Refutation
        • R(d);
    • Try
      • P(E);CHECK
      • Vars
        • K(e);P-FLIGHT,XP(F)::QAB(L)+P(E)
      • Refutation
        • Q(i);P_PINB(H),P_SPINQ(i)
    • Try
      • P(F);
      • Threat
        • QAR1(L)
      • Vars
        • Q(i);N_GUARD,P_PINQ(L)::S(G),XP(h)
        • B(a);N_GUARD::S(G)
        • B(a);N_GUARD::S(G),XB(a)
      • Refutation
        • Q(i);P_PINQ(L)
  • Actual
    • S(C);
    • Threat
      • B(H)+P(E)
    • Vars
      • Q(i);OGATE,XS(C)::B(H)+P(E),XQ(i)
      • Q(i);N_GUARD,P_PINQ(L)::S(G),XP(h)
      • R(d);S_CUTB(a)::S(C),XP(g)
      • B(a);N_GUARD::S(G)
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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).