MESON Chess Problem Database

Problem Display
PID: 10969 (6R1/3p3B/Qp1p4/1npkp3/N1RpN3/P2p2K1/P2P4/8 w - - 0 1)

Thornton, George Howard

International Chess Magazine, 1885

6R1/3p3B/Qp1p4/1npkp3/N1RpN3/P2p2K1/P2P4/8

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc4
      • 2.Sxb6#
  • Tries
    • 1.Sf6+?
      • 1...Kxc4
        • 2.Sb2#
        • 2.Sxb6#
      • 1...Kc6
        • 2.Qxb6#
      • 1...Ke6!
    • 1.Qb7+?
      • 1...Kxc4
        • 2.Sb2#
        • 2.Sxb6#
      • 1...Ke6!
    • 1.Qa8+?
      • 1...Kxc4
        • 2.Sb2#
        • 2.Sxb6#
      • 1...Ke6!
  • Keys
    • 1.Rg6!
      • 1...Kxc4
        • 2.Sxb6#
      • 1...Kxe4
        • 2.Rxd6#
      • 1...Kc6
        • 2.Rxc5#
      • 1...Sxa3
        • 2.Rxd6#
      • 1...Sc3
        • 2.Rxd6#
      • 1...Sa7
        • 2.Rxd6#
      • 1...Sc7
        • 2.Rxd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(e);P_SPINS(c),S_FLIGHT,XR(F)::S(E),XP(g)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(e);P_SPINP(d),S_FLIGHT::QAR1(H),XP(g)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(H);CHECK
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(H);CHECK
      • Refutation
        • K(e);S_FLIGHT
  • Actual
    • R(J);
    • Vars
      • K(e);P_SPINS(c),S_FLIGHT,XR(F)::S(E),XP(g)
      • K(e);P_SPINP(b),S_FLIGHT,XS(G)::B(I)+R(J),XP(h)
      • K(e);P_SPINP(d),S_FLIGHT::R1(F),XP(d)
      • S(c);N_GUARD,XP(C)::R1(J),XP(h)
      • S(c);N_GUARD::R1(J),XP(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).