MESON Chess Problem Database

Problem Display
PID: 124261 (1bQ1R1b1/2p4p/1Pp1r1P1/3pk1P1/6K1/B3P3/6B1/3R4 w - - 0 1)

Henderson, John

Canadian Spectator, 1882

1bQ1R1b1/2p4p/1Pp1r1P1/3pk1P1/6K1/B3P3/6B1/3R4

#2

10 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Re7
      • 2.Qf5#
    • 1...Rxe8
      • 2.Qf5#
    • 1...Ba7
      • 2.Qxc7#
    • 1...d4
      • 2.exd4#
    • 1...c5
      • 2.Rxd5#
    • 1...cxb6
      • 2.Qxb8#
  • Keys
    • 1.gxh7!
      • threat
        • 2.h8Q#
        • 2.h8B#
      • 1...Rxe8
        • 2.Qf5#
        • 2.h8Q#
        • 2.h8B#
      • 1...Bxh7
        • 2.Rxe6#
        • 2.Qxe6#
      • 1...cxb6
        • 2.Qxb8#
        • 2.h8Q#
        • 2.h8B#
      • 1...c5
        • 2.Rxd5#
      • 1...Re7
        • 2.Qf5#
        • 2.h8Q#
        • 2.h8B#
      • 1...Ba7
        • 2.Qxc7#
        • 2.h8Q#
        • 2.h8B#
      • 1...Bf7
        • 2.h8Q#
        • 2.h8B#
      • 1...d4
        • 2.exd4#
        • 2.h8Q#
        • 2.h8B#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • R(d);OGATE::QAR1(I)
    • R(d);N_SPINR(d),OGATE,XR(J)::QAR1(I)
    • B(g);N_GUARD::QAB(I),XP(e)
    • P(a);OGATE::P(D),XP(a)
    • P(c);N_GUARD::R1(A),XP(a)
    • P(e);OGATEB,XP(G)::QAB(I),XB(g)
  • Actual
    • P(H);XP(f)
    • Threat
      • P=Q
    • Vars
      • P(c);N_GUARD::R1(A),XP(a)
      • B(h);::P=Q
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).