MESON Chess Problem Database

Problem Display
PID: 147310 (7R/5p2/K3BPkB/pp3b1N/r4p2/r7/1Q6/7R w - - 0 1)

Maniak, Adam

Canadian Chess Chat, 1984

7R/5p2/K3BPkB/pp3b1N/r4p2/r7/1Q6/7R

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.Qg2#
    • 1...Be4
      • 2.Sxf4#
    • 1...b4
      • 2.Sxf4#
  • Tries
    • 1.Qe5?
      • threat
        • 2.Bxf5#
        • 2.Qxf5#
      • 1...Bxe6
        • 2.Qg5#
      • 1...Rh3
        • 2.Qxf5#
      • 1...Bb1
        • 2.Qg5#
      • 1...Bc2
        • 2.Qg5#
      • 1...Bd3
        • 2.Rg1#
        • 2.Qg5#
      • 1...Bh3
        • 2.Qg5#
      • 1...Be4
        • 2.Sxf4#
        • 2.Qg5#
      • 1...Bg4
        • 2.Qg5#
      • 1...fxe6!
    • 1.Qg2+?
      • 1...Bg4
        • 2.Qxg4#
      • 1...Rg3!
  • Keys
    • 1.Qxb5!
      • threat
        • 2.Bxf5#
        • 2.Qxf5#
      • 1...Bxe6
        • 2.Qg5#
      • 1...fxe6
        • 2.Qe8#
      • 1...Rh3
        • 2.Qxf5#
      • 1...Bb1
        • 2.Qg5#
      • 1...Bc2
        • 2.Qg5#
      • 1...Bd3
        • 2.Rg1#
      • 1...Bh3
        • 2.Qg5#
      • 1...Be4
        • 2.Qg5#
      • 1...Bg4
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • B(f);N_GUARD,S_CUTR(a)::QAR(B)
    • B(f);S_CUTR(b)::S(C),XP(c)
    • P(e);S_CUTR(b)::S(C),XP(c)
  • Tries
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • B(f);OGATE,XB(E)::QAR1(B)
        • R(a);::QAB1(B),XB(f)
        • B(f);OGATE::QAR1(B)
      • Refutation
        • P(h);XB(E)
    • Try
      • Q(B);CHECK
      • Vars
        • B(f);N_GUARD,P_SPINB(f)::QAR2(B),XB(f)
      • Refutation
        • R(a);P_SPINR(a)
  • Actual
    • Q(B);XP(e)
    • Threat
      • DUALS(2)
    • Vars
      • B(f);OGATE,XB(E)::QAR1(B)
      • P(h);OGATEB,XB(E)::QAB(B)
      • R(a);::QAB1(B),XB(f)
      • B(f);OGATE::QAR1(B)
      • B(f);N_GUARD,P_PINQ(B),S_CUTR(a)::R(A)
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).