MESON Chess Problem Database

Problem Display
PID: 108859 (Kn2N3/pQ1p4/r4P1p/2P4R/p3P1k1/4Pq1R/6b1/3B4 w - - 0 1)

Legentil, Georges

L'Action Francaise, 0000

Kn2N3/pQ1p4/r4P1p/2P4R/p3P1k1/4Pq1R/6b1/3B4

#2

10 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf6
      • 2.Sxf6#
    • 1...Bf1
      • 2.Bxf3#
    • 1...Sc6
      • 2.Qxd7#
    • 1...d5
      • 2.Qg7#
    • 1...d6
      • 2.Qg7#
  • Tries
    • 1.Qd5?
      • threat
        • 2.R5h4#
        • 2.Qg8#
        • 2.Qf5#
      • 1...Rxf6
        • 2.Sxf6#
        • 2.R5h4#
      • 1...Re6
        • 2.R5h4#
        • 2.Qf5#
      • 1...Bxh3!
    • 1.Qxd7+?
      • 1...Re6
        • 2.Qxe6#
        • 2.Qg7#
      • 1...Sxd7!
  • Keys
    • 1.e5!
      • threat
        • 2.Qe4#
      • 1...Qxd1
        • 2.Qxg2#
      • 1...Rxf6
        • 2.Sxf6#
      • 1...Bxh3
        • 2.Qxf3#
      • 1...Qe2
        • 2.Qxg2#
      • 1...Rc6
        • 2.Qb4#
      • 1...Sc6
        • 2.Qxd7#
      • 1...d5
        • 2.Qg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • R(e);XP(G)::S(J),XR(e)
    • B(a);N_GUARD::B(A),XQ(b)
    • S(i);N_GUARD,S_CUTR(e)::QAB(H),XP(h)
    • P(h);OGATE::QAR(H)
  • Tries
    • Try
      • Q(H);
      • Threat
        • DUALS(3)
      • Refutation
        • B(a);XR(C)
    • Try
      • Q(H);CHECK,P_SPINP(D),XP(h)
      • Refutation
        • S(i);XQ(H)
  • Actual
    • P(D);P_SPINQ(H)
    • Threat
      • QAR2(H)
    • Vars
      • Q(b);N_SPINQ(b),XB(A)::QAR2(H),XB(a)
      • R(e);XP(G)::S(J),XR(e)
      • B(a);N_GUARD,XR(C)::QAB1(H),XQ(b)
      • Q(b);::QAR2(H),XB(a)
      • R(e);N_PINQ(H)::QAR(H)
      • S(i);N_PINQ(H)::QAB(H),XP(h)
      • P(h);N_PINQ(H)::QAR(H)
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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).