MESON Chess Problem Database

Problem Display
PID: 261427 (8/1B1Np3/2Kpp3/4Nn1r/3k3r/1Pp1R2R/2P4b/8 w - - 0 1)

Barnes, Barry Peter

Neue Zurcher Zeitung, 2001

8/1B1Np3/2Kpp3/4Nn1r/3k3r/1Pp1R2R/2P4b/8

#2

8 + 9

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Re4
      • 2.Rd3#
  • Tries
    • 1.Kb5?
      • threat
        • 2.Rd3#
      • 1...Rxh3
        • 2.Re4#
      • 1...d5
        • 2.Sc6#
      • 1...Sxe3!
    • 1.Kc7?
      • threat
        • 2.Rd3#
      • 1...Rxh3
        • 2.Re4#
      • 1...Sxe3
        • 2.Sf3#
      • 1...d5!
    • 1.Re4+?
      • 1...Rxe4
        • 2.Rd3#
      • 1...Kxe4!
  • Keys
    • 1.Kb6!
      • threat
        • 2.Rd3#
      • 1...Rxh3
        • 2.Re4#
      • 1...Sxe3
        • 2.Sf3#
      • 1...d5
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • R(d);SBLOCK::R1(C)
  • Tries
    • Try
      • K(F);S_FLIGHT
      • Threat
        • R1(C)
      • Vars
        • R(d);N_GUARD,XR(D)::R1(C)
        • P(g);SBLOCK::S(E)
      • Refutation
        • S(e);P_PINS(E),XR(C)
    • Try
      • K(F);P-FLIGHT
      • Threat
        • R1(C)
      • Vars
        • R(d);N_GUARD,XR(D)::R1(C)
        • S(e);SBLOCK,XR(C)::S(E)
      • Refutation
        • P(g);P_PINS(E)
    • Try
      • R(C);CHECK
      • Vars
        • R(d);SBLOCK,XR(C)::R1(D)
      • Refutation
        • K(c);P-FLIGHT,XR(C)
  • Actual
    • K(F);P-FLIGHT
    • Threat
      • R1(C)
    • Vars
      • R(d);N_GUARD,XR(D)::R1(C)
      • S(e);SBLOCK,XR(C)::S(E)
      • P(g);SBLOCK::S(E)
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).