MESON Chess Problem Database

Problem Display
PID: 226946 (2K1Q3/5B2/4Nk2/5p2/3R2p1/2R4b/7r/B5r1 w - - 0 1)

Braithwaite, Kenneth Holmes

US Problem Bulletin, 1984

2K1Q3/5B2/4Nk2/5p2/3R2p1/2R4b/7r/B5r1

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qh8#
  • Tries
    • 1.Rd7?
      • threat
        • 2.Qh8#
      • 1...Ke5
        • 2.Re3#
      • 1...Bf1
        • 2.Rc2#
      • 1...Bg2
        • 2.Rc1#
      • 1...f4!
    • 1.Qe7+?
      • 1...Ke5
        • 2.Re3#
        • 2.Rc5#
      • 1...Kxe7!
    • 1.Qd8+?
      • 1...Ke5
        • 2.Re3#
        • 2.Rc5#
        • 2.Qh8#
      • 1...Kxf7!
    • 1.Qh8+?
      • 1...Ke7
        • 2.Rc7#
        • 2.Rd7#
      • 1...Kxf7!
  • Keys
    • 1.Rc7!
      • threat
        • 2.Qh8#
      • 1...Ke5
        • 2.Qh8#
      • 1...f4
        • 2.Rxf4#
      • 1...Bf1
        • 2.Rd2#
      • 1...Bg2
        • 2.Rd1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(f);S_FLIGHT::QAB(G)
  • Tries
    • Try
      • R(C);
      • Threat
        • QAB(G)
      • Vars
        • K(f);S_FLIGHT::B(A)+R(B),DCHECK
        • B(c);S_CUTR(a)::B(A)+R(B)
        • B(c);S_CUTR(b)::B(A)+R(B)
      • Refutation
        • P(e);
    • Try
      • Q(G);CHECK
      • Refutation
        • K(f);S_FLIGHT,XQ(G)
    • Try
      • Q(G);CHECK
      • Refutation
        • K(f);P-FLIGHT,XB(E)
    • Try
      • Q(G);CHECK
      • Refutation
        • K(f);P-FLIGHT,XB(E)
  • Actual
    • R(B);
    • Threat
      • QAB(G)
    • Vars
      • K(f);S_FLIGHT::QAB(G)
      • P(e);::B(A)+R(C),DCHECK,XP(e)
      • B(c);S_CUTR(a)::B(A)+R(C)
      • B(c);S_CUTR(b)::B(A)+R(C)
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).