MESON Chess Problem Database

Problem Display
PID: 195770 (8/3p2K1/2PPB3/R1BrkpN1/1N4p1/1p1PP3/1P3P2/Q7 w - - 0 1)

Nield, Joshua

Western Daily Mercury, 1917

(First published on Fri Nov 23 1917)

8/3p2K1/2PPB3/R1BrkpN1/1N4p1/1p1PP3/1P3P2/Q7

#2

13 + 6

15239 Valois Notebooks 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd3
      • 2.Sxd3#
    • 1...Rxd6
      • 2.Bd4#
    • 1...g3
      • 2.f4#
    • 1...dxc6
      • 2.Sxc6#
    • 1...dxe6
      • 2.Sf7#
  • Tries
    • 1.cxd7?
      • threat
        • 2.Sc6#
      • 1...Rxd6
        • 2.Bd4#
      • 1...Rxc5!
  • Keys
    • 1.Qc1!
      • 1...Rxd3
        • 2.Sxd3#
      • 1...Rxc5
        • 2.Qxc5#
      • 1...Rxd6
        • 2.Bd4#
      • 1...dxc6
        • 2.Sxc6#
      • 1...dxe6
        • 2.Sf7#
      • 1...Rd4
        • 2.exd4#
      • 1...g3
        • 2.f4#
      • 1...f4
        • 2.exf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(c);XP(D)::S(F),XR(c)
    • R(c);SBLOCK,XP(K)::R(G)+B(H),DCHECK
    • P(b);N_GUARD::P(C)
    • P(f);XP(J)::S(F),XP(f)
    • P(f);SBLOCK,XB(L)::S(I)
  • Tries
    • Try
      • P(J);XP(f)
      • Threat
        • S(F)
      • Vars
        • R(c);SBLOCK,XP(K)::R(G)+B(H),DCHECK
      • Refutation
        • R(c);P_SPINR(c),XB(H)
  • Actual
    • Q(A);
    • Vars
      • R(c);XP(D)::S(F),XR(c)
      • R(c);OGATE,P_SPINR(c),XB(H)::QAR2(A),XR(c)
      • R(c);SBLOCK,XP(K)::R(G)+B(H),DCHECK
      • P(f);XP(J)::S(F),XP(f)
      • P(f);SBLOCK,XB(L)::S(I)
      • R(c);OGATE::P(E),XR(c)
      • P(b);N_GUARD::P(C)
      • P(e);OGATE::P(E),XP(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).