MESON Chess Problem Database

Problem Display
PID: 6736 (1Nb1K3/R7/1pr1p3/2kNB3/2P5/2PP4/n2p4/8 w - - 0 1)

Fox, Charles Masson

Evening News, 1933

(First published on Thu Feb 23 1933)

1Nb1K3/R7/1pr1p3/2kNB3/2P5/2PP4/n2p4/8

#2

8 + 7

14867 BCPS Library 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.Bd4#
    • 1...Rc7
      • 2.Rxc7#
    • 1...Ba6
      • 2.Sxa6#
      • 2.Sd7#
    • 1...Bb7
      • 2.Sd7#
    • 1...Bd7+
      • 2.Sxd7#
    • 1...Sb4
      • 2.cxb4#
  • Tries
    • 1.Ke7?
      • threat
        • 2.Bd4#
      • 1...Rc7+
        • 2.Rxc7#
      • 1...Sxc3!
    • 1.Ra5+?
      • 1...b5
        • 2.Rxb5#
      • 1...bxa5!
    • 1.Rc7?
      • threat
        • 2.Rxc6#
      • 1...Bd7+
        • 2.Sxd7#
      • 1...Bb7
        • 2.Sd7#
      • 1...Sb4
        • 2.cxb4#
      • 1...Rxc7!
    • 1.Rd7?
      • threat
        • 2.Bd4#
      • 1...Bxd7+
        • 2.Sxd7#
      • 1...Sxc3!
  • Keys
    • 1.Rb7!
      • threat
        • 2.Sa6#
      • 1...Bd7+
        • 2.Sxd7#
      • 1...Bxb7
        • 2.Sd7#
      • 1...Rd6
        • 2.Bd4#
      • 1...Rc7
        • 2.Rxc7#
      • 1...Sb4
        • 2.cxb4#
      • 1...b5
        • 2.Rxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(e);SBLOCK::B(E)
    • R(e);OGATEB::R(F),XR(e)
    • B(g);N_GUARD::S(G)
    • B(g);CHECK,N_GUARD::S(G),XB(g)
    • S(a);OGATE::P(A),XS(a)
  • Tries
    • Try
      • K(H);P-FLIGHT
      • Threat
        • B(E)
      • Vars
        • R(e);CHECK,OGATEB::R(F),XR(e)
      • Refutation
        • S(a);XP(A)
    • Try
      • R(F);CHECK
      • Vars
        • P(d);P_SPINP(d)::R1(F),XP(d)
      • Refutation
        • P(d);XR(F)
    • Try
      • R(F);P_PINR(e)
      • Threat
        • R1(F),XR(e)
      • Vars
        • B(g);CHECK,N_GUARD::S(G),XB(g)
        • B(g);N_GUARD::S(G)
        • S(a);OGATE::P(A),XS(a)
      • Refutation
        • R(e);N_SPINR(e),XR(F)
    • Try
      • R(F);
      • Threat
        • B(E)
      • Vars
        • B(g);CHECK,XR(F)::S(G),XB(g)
      • Refutation
        • S(a);XP(A)
  • Actual
    • R(F);
    • Threat
      • S(G)
    • Vars
      • B(g);CHECK,N_GUARD::S(G),XB(g)
      • B(g);N_GUARD,XR(F)::S(G)
      • R(e);SBLOCK::B(E)
      • R(e);OGATEB::R(F),XR(e)
      • S(a);OGATE::P(A),XS(a)
      • P(d);OGATE::R1(F),XP(d)
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).