MESON Chess Problem Database

Problem Display
PID: 108052 (1N1Q1N2/8/8/2PpP3/3k2p1/P2B2P1/3K4/8 w - - 0 1)

Ferron de la Fuente, Ernesto

2nd HM., El Ajedrez Espanol, 1964

1N1Q1N2/8/8/2PpP3/3k2p1/P2B2P1/3K4/8

#2

9 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc5
      • 2.Se6#
    • 1...Kxe5
      • 2.Sc6#
  • Tries
    • 1.Kc2?
      • 1...Kxc5
        • 2.Se6#
      • 1...Kxe5
        • 2.Sc6#
      • 1...Ke3!
    • 1.Ke2?
      • 1...Kxc5
        • 2.Se6#
      • 1...Kxe5
        • 2.Sc6#
      • 1...Kc3!
    • 1.Sh7?
      • 1...Kxe5
        • 2.Qf6#
      • 1...Kxc5!
    • 1.Qh4?
      • 1...Kxe5
        • 2.Sc6#
        • 2.Qh8#
      • 1...Kxc5!
    • 1.a4?
      • 1...Kxe5
        • 2.Sc6#
      • 1...Kxc5!
    • 1.c6?
      • 1...Kc5
        • 2.Se6#
      • 1...Kxe5!
    • 1.e6?
      • 1...Ke5
        • 2.Sc6#
      • 1...Kxc5!
  • Keys
    • 1.Qd7!
      • 1...Kxc5
        • 2.Qa7#
      • 1...Kxe5
        • 2.Qg7#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINP(c),S_FLIGHT,XP(E)::S(I)
    • K(a);N_SPINP(c),S_FLIGHT,XP(F)::S(G)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);N_SPINP(c),S_FLIGHT,XP(E)::S(I)
        • K(a);N_SPINP(c),S_FLIGHT,XP(F)::S(G)
      • Refutation
        • K(a);N_SPINP(c),S_FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);N_SPINP(c),S_FLIGHT,XP(E)::S(I)
        • K(a);N_SPINP(c),S_FLIGHT,XP(F)::S(G)
      • Refutation
        • K(a);N_SPINP(c),S_FLIGHT
    • Try
      • S(I);
      • Vars
        • K(a);N_SPINP(c),OGATEB,S_FLIGHT,XP(F)::QAB1(H)
      • Refutation
        • K(a);N_SPINP(c),S_FLIGHT,XP(E)
    • Try
      • Q(H);N_PINP(c),P_PINP(b)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT,XP(E)
    • Try
      • P(B);
      • Vars
        • K(a);N_SPINP(c),S_FLIGHT,XP(F)::S(G)
      • Refutation
        • K(a);N_SPINP(c),S_FLIGHT,XP(E)
    • Try
      • P(E);
      • Vars
        • K(a);N_SPINP(c),S_FLIGHT::S(I)
      • Refutation
        • K(a);N_SPINP(c),S_FLIGHT,XP(F)
    • Try
      • P(F);
      • Vars
        • K(a);N_SPINP(c),S_FLIGHT::S(G)
      • Refutation
        • K(a);N_SPINP(c),S_FLIGHT,XP(E)
  • Actual
    • Q(H);
    • Vars
      • K(a);N_SPINP(c),OGATEB,S_FLIGHT,XP(E)::QAB(H)
      • K(a);N_SPINP(c),OGATEB,S_FLIGHT,XP(F)::QAB(H)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).