MESON Chess Problem Database

Problem Display
PID: 108267 (2K5/3N4/3p1P2/3k1nRB/N2P4/P2RP3/4P3/8 w - - 0 1)

Eddis, EHE

Toronto Week, 1889

2K5/3N4/3p1P2/3k1nRB/N2P4/P2RP3/4P3/8

#2

11 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Sc3#
      • 2.Bf3#
    • 1...Ke6
      • 2.d5#
  • Tries
    • 1.Kc7?
      • 1...Ke4
        • 2.Sc3#
        • 2.Bf3#
      • 1...Ke6
        • 2.d5#
      • 1...Kc4!
    • 1.Sb2?
      • 1...Ke4
        • 2.Bf3#
      • 1...Ke6
        • 2.d5#
      • 1...Kc6!
    • 1.Sc3+?
      • 1...Kc6
        • 2.d5#
      • 1...Ke6
        • 2.d5#
      • 1...Kc4!
    • 1.Sab6+?
      • 1...Ke4
        • 2.Bf3#
        • 2.Rg4#
      • 1...Ke6
        • 2.d5#
      • 1...Kc6!
    • 1.Sdb6+?
      • 1...Ke4
        • 2.Sc3#
        • 2.Bf3#
        • 2.Rg4#
      • 1...Kc6
        • 2.Be8#
      • 1...Ke6!
    • 1.Bf7+?
      • 1...Ke4
        • 2.Sc3#
        • 2.Rg4#
      • 1...Kc6!
    • 1.Rc3?
      • 1...Ke4
        • 2.Bf3#
      • 1...Ke6!
  • Keys
    • 1.Be8!
      • 1...Kc4
        • 2.Sdb6#
      • 1...Ke4
        • 2.Sc3#
      • 1...Kc6
        • 2.Sdb6#
      • 1...Ke6
        • 2.d5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINS(b),OGATE,S_FLIGHT::P(F)
  • Tries
    • Try
      • K(K);P-FLIGHT
      • Vars
        • K(a);N_SPINS(b),OGATE,S_FLIGHT::P(F)
      • Refutation
        • K(a);N_SPINS(b),S_FLIGHT
    • Try
      • S(E);
      • Vars
        • K(a);N_SPINS(b),S_FLIGHT::B(H)
        • K(a);N_SPINS(b),OGATE,S_FLIGHT::P(F)
      • Refutation
        • K(a);N_SPINS(b),S_FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(a);N_SPINS(b),OGATE,S_FLIGHT::P(F)
      • Refutation
        • K(a);N_SPINS(b),S_FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(a);N_SPINS(b),OGATE,S_FLIGHT::P(F)
      • Refutation
        • K(a);N_SPINS(b),S_FLIGHT
    • Try
      • S(J);CHECK
      • Vars
        • K(a);N_SPINS(b),S_FLIGHT::B(H)
      • Refutation
        • K(a);N_SPINS(b),S_FLIGHT
    • Try
      • B(H);CHECK
      • Refutation
        • K(a);N_SPINS(b),S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);N_SPINS(b),S_FLIGHT::B(H)
      • Refutation
        • K(a);N_SPINS(b),S_FLIGHT
  • Actual
    • B(H);
    • Vars
      • K(a);N_SPINS(b),S_FLIGHT::S(J)
      • K(a);N_SPINS(b),S_FLIGHT::S(E)
      • K(a);N_SPINS(b),S_FLIGHT::B(H)+S(J)
      • K(a);N_SPINS(b),OGATE,S_FLIGHT::P(F)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).