MESON Chess Problem Database

Problem Display
PID: 181890 (3b3B/4NK2/2RP1P2/4k1Np/2pp1p2/2Q2p2/b7/6q1 w - - 0 1)

Ludanyi, Antal

Pesti Naplo, 1905

3b3B/4NK2/2RP1P2/4k1Np/2pp1p2/2Q2p2/b7/6q1

#2

8 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qe1
      • 2.Qxe1#
    • 1...Qg4
      • 2.Qe1#
    • 1...Qxg5
      • 2.Qe1#
    • 1...Ba5
      • 2.Qxa5#
    • 1...Bxe7
      • 2.Qa5#
  • Tries
    • 1.Kf8?
      • threat
        • 2.f7#
      • 1...Qxg5
        • 2.Qe1#
      • 1...Bxe7+!
    • 1.Kg8?
      • threat
        • 2.f7#
      • 1...Bxe7
        • 2.Qa5#
      • 1...Qxg5+!
    • 1.Sg6+?
      • 1...Kd5
        • 2.Qxf3#
      • 1...Kf5!
  • Keys
    • 1.Ke8!
      • threat
        • 2.f7#
      • 1...Qxg5
        • 2.Qe1#
      • 1...Bxe7
        • 2.Qa5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • Q(a);N_GUARD::QAR(A),XQ(a)
    • Q(a);N_GUARD::QAR(A)
    • Q(a);N_GUARD,XS(B)::QAR(A)
    • B(i);N_GUARD::QAR(A),XB(i)
    • B(i);N_GUARD,XS(F)::QAR(A)
  • Tries
    • Try
      • K(G);P-FLIGHT
      • Threat
        • B(H)+P(E)
      • Vars
        • Q(a);N_GUARD,XS(B)::QAR(A)
      • Refutation
        • B(i);CHECK,XS(F)
    • Try
      • K(G);P_SPINS(B),S_FLIGHT
      • Threat
        • B(H)+P(E)
      • Vars
        • B(i);N_GUARD,XS(F)::QAR(A)
      • Refutation
        • Q(a);CHECK,XS(B)
    • Try
      • S(F);CHECK
      • Vars
        • K(g);N_SPINP(e),P-FLIGHT::QAB(A),XP(c)
      • Refutation
        • K(g);N_SPINP(e),P-FLIGHT
  • Actual
    • K(G);S_FLIGHT
    • Threat
      • B(H)+P(E)
    • Vars
      • Q(a);N_GUARD,XS(B)::QAR(A)
      • B(i);N_GUARD,XS(F)::QAR(A)
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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).