MESON Chess Problem Database

Problem Display
PID: 152086 (Q7/2R4B/4Pp1N/5r2/3k1p2/8/7B/3KN3 w - - 0 1)

Clark, WA

Hampstead and Highgate Express, 1898

(First published on Sat Feb 5 1898)

Q7/2R4B/4Pp1N/5r2/3k1p2/8/7B/3KN3

#2

8 + 4

14867 BCPS Library 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Bg1#
    • 1...Ra5
      • 2.Qe4#
    • 1...Rb5
      • 2.Qe4#
    • 1...Re5
      • 2.Sc2#
    • 1...Rg5
      • 2.Qe4#
    • 1...Rh5
      • 2.Qe4#
    • 1...f3
      • 2.Sxf5#
  • Tries
    • 1.Kd2?
      • threat
        • 2.Sf3#
      • 1...Rc5
        • 2.Qe4#
      • 1...f3
        • 2.Sc2#
        • 2.Sxf5#
      • 1...Ke5!
    • 1.Sc2+?
      • 1...Kd3
        • 2.Bxf5#
        • 2.Qf3#
        • 2.Qd5#
      • 1...Ke5!
    • 1.Bxf5?
      • threat
        • 2.Qe4#
      • 1...Ke3
        • 2.Bg1#
        • 2.Qa7#
      • 1...Ke5!
  • Keys
    • 1.Qc6!
      • 1...Ke3
        • 2.Bg1#
      • 1...Ke5
        • 2.Sf3#
      • 1...Rc5
        • 2.Qxc5#
      • 1...f3
        • 2.Sxf5#
      • 1...Ra5
        • 2.Qe4#
      • 1...Rb5
        • 2.Qe4#
      • 1...Rd5
        • 2.Qc3#
      • 1...Re5
        • 2.Sc2#
      • 1...Rg5
        • 2.Qe4#
      • 1...Rh5
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(C)
    • R(c);::QAR1(H)
    • R(c);SBLOCK::S(B)
    • P(b);::S(E),XR(c)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Threat
        • S(B)
      • Vars
        • R(c);::QAR1(H)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • S(B);CHECK
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • B(G);XR(c)
      • Threat
        • QAR1(H)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
  • Actual
    • Q(H);
    • Vars
      • K(a);S_FLIGHT::B(C)
      • K(a);P_SPINP(b),S_FLIGHT::S(B)
      • R(c);N_GUARD::QAB1(H),XR(c)
      • P(b);::S(E),XR(c)
      • R(c);::QAR1(H)
      • R(c);SBLOCK::QAB1(H)
      • R(c);SBLOCK::S(B)
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).