MESON Chess Problem Database

Problem Display
PID: 156 (5b2/4p2K/3pN3/2p2k2/7p/3pR2q/6N1/B2BQ1n1 w - - 0 1)

Macleod, Norman Alasdair

2nd Comm., BCF 066. Ty., 1950-1951

5b2/4p2K/3pN3/2p2k2/7p/3pR2q/6N1/B2BQ1n1

#2

7 + 9

6455 The Chessboard Adventures of Norman Macleod 1996
14869 British Championship Solving Ty. 2013

SOLUTION

  • SOUND
  • Tries
    • 1.Re5+?
      • 1...dxe5
        • 2.Qxe5#
      • 1...Kf6!
  • Keys
    • 1.Qxh4!
      • 1...Qxh4+
        • 2.Sxh4#
      • 1...Qxg2
        • 2.Qf4#
      • 1...Qxe3
        • 2.Qg4#
      • 1...Qg4
        • 2.Bxg4#
        • 2.Qxg4#
      • 1...Qh1
        • 2.Bg4#
      • 1...Qh2
        • 2.Bg4#
      • 1...Qf3
        • 2.Qg5#
      • 1...Qg3
        • 2.Qe4#
      • 1...Bh6
        • 2.Qe4#
      • 1...Bg7
        • 2.Sxg7#
      • 1...Se2
        • 2.Qxh3#
      • 1...Sf3
        • 2.Qxh3#
      • 1...d2
        • 2.Bc2#
      • 1...c4
        • 2.Sd4#
      • 1...d5
        • 2.Re5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 14
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • P(g);OGATE,XR(E)::QAR1(C),XP(g)
      • Refutation
        • K(f);P-FLIGHT
  • Actual
    • Q(C);P_SPINQ(C),XP(d)
    • Vars
      • Q(c);CHECK,XQ(C)::S(D),XQ(c)
      • Q(c);N_PINQ(C),XS(D)::QAR1(C)
      • Q(c);N_PINQ(C),XR(E)::QAB1(C)
      • Q(c);N_GUARD::B(B)
      • Q(c);N_PINQ(C)::QAR1(C)
      • Q(c);N_PINQ(C)::QAB1(C)
      • B(i);N_PINQ(C)::QAB1(C)
      • B(i);N_GUARD::S(F),XB(i)
      • S(a);N_GUARD::QAB(C),XQ(c)
      • P(b);OGATEB::B(B)
      • P(e);N_GUARD::S(F)
      • P(g);N_GUARD::R1(E)
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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).