MESON Chess Problem Database

Problem Display
PID: 287586 (7k/4N3/8/5B2/4P3/r7/bp3RRp/B1b1Q2K w - - 0 1)

Neale, Harry R

The Problemist, 1944

7k/4N3/8/5B2/4P3/r7/bp3RRp/B1b1Q2K

#2

8 + 6

6490 yacpdb 2026

SOLUTION

  • SOUND
  • Sets
    • 1...Rb3
      • 2.Rg8#
    • 1...Rc3
      • 2.Qxc3#
    • 1...Ra7
      • 2.Qc3#
    • 1...Ra8
      • 2.Qc3#
    • 1...Bb1
      • 2.Rg8#
    • 1...Bb3
      • 2.Qc3#
    • 1...Bg8
      • 2.Rxg8#
  • Tries
    • 1.Bxb2+?
      • 1...Rc3
        • 2.Bxc3#
        • 2.Qxc3#
      • 1...Bxb2!
  • Keys
    • 1.Rxb2!
      • threat
        • 2.Rb8#
      • 1...Bxb2
        • 2.Qh4#
      • 1...Rb3
        • 2.Rg8#
      • 1...Rc3
        • 2.Qxc3#
      • 1...Bb3
        • 2.Qc3#
      • 1...Bg8
        • 2.Rxg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • R(e);S_CUTB(b)::R1(E)
    • R(e);N_GUARD,N_SPINP(c)::QAB(B),XR(e)
    • R(e);N_GUARD::QAB(B)
    • R(e);N_GUARD,SBLOCK::QAB(B)
    • B(b);N_GUARD::R1(E)
    • B(b);S_CUTR(e)::QAB(B)
    • B(b);N_GUARD::R1(E),XB(b)
  • Tries
    • Try
      • B(A);CHECK,XP(c)
      • Refutation
        • B(a);XB(A)
  • Actual
    • R(D);XP(c)
    • Threat
      • B(A)+R(D),DCHECK
    • Vars
      • B(a);N_GUARD,P_SPINB(a),XR(D)::QAR(B)
      • R(e);S_CUTB(b)::R1(E)
      • R(e);N_GUARD::QAB(B),XR(e)
      • B(b);S_CUTR(e)::QAB(B)
      • B(b);N_GUARD::R1(E),XB(b)
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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).