MESON Chess Problem Database

Problem Display
PID: 151718 (8/1NPpRn2/1R3P2/1K6/1QpkP3/1p6/1p3P2/1BrbNn2 w - - 0 1)

Colville, Robert A

Hampstead and Highgate Express, 1897

(First published on Sat Jun 12 1897)

8/1NPpRn2/1R3P2/1K6/1QpkP3/1p6/1p3P2/1BrbNn2

#2

11 + 9

14867 BCPS Library 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb1
      • 2.Qxc4#
    • 1...Rc3
      • 2.Qc5#
    • 1...Bc2
      • 2.Qxc4#
    • 1...Bf3
      • 2.Sxf3#
    • 1...Sd2
      • 2.Qxd2#
    • 1...Sh2
      • 2.Qd2#
    • 1...Se3
      • 2.Qd2#
    • 1...Sg3
      • 2.Qd2#
    • 1...Se5
      • 2.Rd6#
    • 1...Sg5
      • 2.Rd6#
    • 1...Sd6+
      • 2.Rxd6#
    • 1...Sh6
      • 2.Rd6#
    • 1...Sd8
      • 2.Rd6#
    • 1...Sh8
      • 2.Rd6#
  • Tries
    • 1.c8Q?
      • threat
        • 2.Qcc5#
      • 1...Sd6+
        • 2.Rxd6#
      • 1...d6!
  • Keys
    • 1.Sa5!
      • 1...Sd6+
        • 2.Rxd6#
      • 1...Rxb1
        • 2.Qxc4#
      • 1...Rc2
        • 2.Sxb3#
      • 1...Rc3
        • 2.Qc5#
      • 1...Bc2
        • 2.Qxc4#
      • 1...Be2
        • 2.Sxb3#
      • 1...Bf3
        • 2.Sxf3#
        • 2.Sxb3#
      • 1...Bg4
        • 2.Sxb3#
      • 1...Bh5
        • 2.Sxb3#
      • 1...Sd2
        • 2.Qxd2#
      • 1...Sh2
        • 2.Qd2#
      • 1...Se3
        • 2.Qd2#
      • 1...Sg3
        • 2.Qd2#
      • 1...Se5
        • 2.Rd6#
      • 1...Sg5
        • 2.Rd6#
      • 1...Sh6
        • 2.Rd6#
      • 1...Sd8
        • 2.Rd6#
      • 1...Sh8
        • 2.Rd6#
      • 1...d5
        • 2.Sc6#
      • 1...d6
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • R(a);N_GUARD,XB(A)::QAR1(D),XP(f)
    • R(a);SBLOCK::QAB1(D)
    • B(b);S_CUTR(a)::QAR1(D),XP(f)
    • B(b);N_GUARD::S(B),XB(b)
    • S(c);N_GUARD::QAR2(D),XS(c)
    • S(c);N_GUARD::QAR2(D)
    • S(i);N_GUARD::R(G)
    • S(i);CHECK,N_GUARD::R(G),XS(i)
  • Tries
    • Try
      • P(J);
      • Threat
        • QAB1(J)
      • Vars
        • S(i);CHECK,N_GUARD::R(G),XS(i)
      • Refutation
        • P(h);
  • Actual
    • S(I);
    • Vars
      • S(i);CHECK,N_GUARD::R(G),XS(i)
      • R(a);N_GUARD,XB(A)::QAR1(D),XP(f)
      • R(a);S_CUTB(b)::S(I),XP(e)
      • R(a);SBLOCK::QAB1(D)
      • B(b);S_CUTR(a)::QAR1(D),XP(f)
      • B(b);N_GUARD::S(I),XP(e)
      • S(c);N_GUARD::QAR2(D),XS(c)
      • S(c);N_GUARD::QAR2(D)
      • S(i);N_GUARD::R(G)
      • P(h);N_GUARD::S(I)
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).