MESON Chess Problem Database

Problem Display
PID: 214729 (N3K3/8/3p2B1/2nk4/P1R2P2/1pP5/1P6/7R w - - 0 1)

Anonymous

Detroit Free Press (Centennial Ty.), 1877

N3K3/8/3p2B1/2nk4/P1R2P2/1pP5/1P6/7R

#2

9 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc4
      • 2.Sb6#
    • 1...Sd3
      • 2.Bf7#
    • 1...Sxa4
      • 2.Bf7#
    • 1...Se4
      • 2.Bf7#
    • 1...Sa6
      • 2.Bf7#
    • 1...Se6
      • 2.Sb6#
    • 1...Sb7
      • 2.Bf7#
    • 1...Sd7
      • 2.Bf7#
  • Tries
    • 1.Ke7?
      • 1...Kxc4
        • 2.Sb6#
      • 1...Sxa4
        • 2.Bf7#
      • 1...Sd3
        • 2.Sb6#
        • 2.Bf7#
      • 1...Se4
        • 2.Sb6#
        • 2.Bf7#
      • 1...Sa6
        • 2.Sb6#
        • 2.Bf7#
      • 1...Se6
        • 2.Sb6#
      • 1...Sb7
        • 2.Sb6#
        • 2.Bf7#
      • 1...Sd7
        • 2.Bf7#
      • 1...Kc6!
    • 1.Be4+?
      • 1...Kxc4
        • 2.Sb6#
      • 1...Ke6
        • 2.Rh6#
      • 1...Sxe4!
    • 1.Bf7+?
      • 1...Se6
        • 2.Sb6#
      • 1...Kc6!
    • 1.Re1?
      • 1...Kxc4
        • 2.Sb6#
      • 1...Sxa4
        • 2.Bf7#
      • 1...Sd3
        • 2.Sb6#
        • 2.Bf7#
      • 1...Se4
        • 2.Bf7#
      • 1...Sa6
        • 2.Sb6#
        • 2.Bf7#
      • 1...Se6
        • 2.Sb6#
      • 1...Sb7
        • 2.Sb6#
        • 2.Bf7#
      • 1...Sd7
        • 2.Bf7#
      • 1...Kc6!
  • Keys
    • 1.Rh6!
      • 1...Kxc4
        • 2.Sb6#
      • 1...Kc6
        • 2.Be4#
      • 1...Ke6
        • 2.Be4#
      • 1...Sxa4
        • 2.Bf7#
      • 1...Sd3
        • 2.Bf7#
      • 1...Se4
        • 2.Bf7#
      • 1...Sa6
        • 2.Bf7#
      • 1...Se6
        • 2.Sb6#
      • 1...Sb7
        • 2.Bf7#
      • 1...Sd7
        • 2.Bf7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT,XR(E)::S(H)
    • S(b);N_GUARD::B(G)
    • S(b);N_GUARD,XP(D)::B(G)
    • S(b);SBLOCK::S(H)
  • Tries
    • Try
      • K(I);P-FLIGHT
      • Vars
        • K(c);S_FLIGHT,XR(E)::S(H)
        • S(b);N_GUARD,XP(D)::B(G)
        • S(b);::S(H)
        • S(b);N_GUARD::B(G)
      • Refutation
        • K(c);P_SPINS(b),S_FLIGHT
    • Try
      • B(G);CHECK
      • Vars
        • K(c);S_FLIGHT,XR(E)::S(H)
        • K(c);S_FLIGHT::R(A)
      • Refutation
        • S(b);XB(G)
    • Try
      • B(G);CHECK
      • Vars
        • S(b);P_SPINS(b)::S(H)
      • Refutation
        • K(c);P_SPINS(b),S_FLIGHT
    • Try
      • R(A);
      • Vars
        • K(c);S_FLIGHT,XR(E)::S(H)
        • S(b);N_GUARD,XP(D)::B(G)
        • S(b);N_GUARD::B(G)
        • S(b);::S(H)
      • Refutation
        • K(c);P_SPINS(b),S_FLIGHT
  • Actual
    • R(A);
    • Vars
      • K(c);S_FLIGHT,XR(E)::S(H)
      • K(c);P_SPINS(b),S_FLIGHT::B(G)
      • K(c);S_FLIGHT::R(A)+B(G)
      • S(b);N_GUARD,XP(D)::B(G)
      • S(b);N_GUARD::B(G)
      • S(b);SBLOCK::S(H)
HTML5 logo

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).