MESON Chess Problem Database

Problem Display
PID: 263809 (7B/K7/3p4/1P6/2k1p1R1/2PN4/RP6/5B2 w - - 0 1)

Anonymous

Tijdschrift vd NSB, 1894

7B/K7/3p4/1P6/2k1p1R1/2PN4/RP6/5B2

#2

9 + 3

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Kb6?
      • 1...Kd5
        • 2.Sf4#
      • 1...d5
        • 2.Sc1#
        • 2.Sc5#
      • 1...Kb3!
    • 1.Sb4+?
      • 1...Kc5
        • 2.Bd4#
      • 1...Kb3!
    • 1.Sf4+?
      • 1...Kc5
        • 2.Bd4#
        • 2.b4#
      • 1...Kb3!
    • 1.Sc5+?
      • 1...Kd5
        • 2.Rg5#
      • 1...Kxc5!
  • Keys
    • 1.b4!
      • 1...Kb3
        • 2.Sc1#
      • 1...Kxb5
        • 2.Se5#
      • 1...Kd5
        • 2.Sf4#
      • 1...d5
        • 2.Sc1#
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(H);S_FLIGHT
      • Vars
        • K(a);N_GUARD,N_SPINP(b),S_FLIGHT::S(E)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(a);N_GUARD,N_SPINP(b),P-FLIGHT::B(I)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • S(E);CHECK,N_PINP(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(a);N_SPINP(b),S_FLIGHT::R(F)
      • Refutation
        • K(a);N_SPINP(b),P-FLIGHT,XS(E)
  • Actual
    • P(C);
    • Vars
      • K(a);N_GUARD,N_SPINP(b),S_FLIGHT::S(E)
      • K(a);N_GUARD,N_SPINP(b),S_FLIGHT,XP(G)::B(A)+S(E)
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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).