MESON Chess Problem Database

Problem Display
PID: 66869 (3r4/8/4n3/3b1N2/pP1R3p/pk5r/p3B2p/n1QKB3 w - - 0 1)

Bonavia-Hunt, Rev Noel Aubrey

Chess, 1947

3r4/8/4n3/3b1N2/pP1R3p/pk5r/p3B2p/n1QKB3

#2

7 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.Qxc3#
    • 1...Rd3+
      • 2.Rxd3#
    • 1...Bh1
      • 2.Bc4#
    • 1...Bg2
      • 2.Bc4#
    • 1...Bf3
      • 2.Qc3#
    • 1...Bc4
      • 2.Bxc4#
    • 1...Be4
      • 2.Bc4#
    • 1...Bc6
      • 2.Bc4#
    • 1...Bb7
      • 2.Bc4#
    • 1...Ba8
      • 2.Bc4#
    • 1...Sc2
      • 2.Qxc2#
    • 1...Sxd4
      • 2.Sxd4#
  • Keys
    • 1.b5!
      • threat
        • 2.Rb4#
      • 1...Rd3+
        • 2.Rxd3#
      • 1...Sxd4
        • 2.Sxd4#
      • 1...Rc3
        • 2.Qxc3#
      • 1...Bh1
        • 2.Bc4#
      • 1...Bg2
        • 2.Bc4#
      • 1...Bf3
        • 2.Qc3#
      • 1...Bc4
        • 2.Bxc4#
      • 1...Be4
        • 2.Bc4#
      • 1...Bc6
        • 2.Bc4#
      • 1...Bb7
        • 2.Bc4#
      • 1...Ba8
        • 2.Bc4#
      • 1...Sc2
        • 2.Qxc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • R(f);N_GUARD::QAR1(A),XR(f)
    • R(f);CHECK,N_GUARD::R(F),XR(f)
    • B(i);N_GUARD,P_PINR(F)::B(D)
    • B(i);P_PINB(D),P_PINR(F),S_CUTR(f)::QAR1(A)
    • B(i);N_GUARD,P_PINR(F)::B(D),XB(i)
    • S(a);N_GUARD::QAB1(A),XS(a)
    • S(j);XR(F)::S(G),XS(j)
  • Actual
    • P(E);
    • Threat
      • R1(F)
    • Vars
      • R(f);CHECK,N_GUARD::R(F),XR(f)
      • S(j);XR(F)::S(G),XS(j)
      • R(f);N_GUARD::QAR1(A),XR(f)
      • B(i);N_GUARD,P_PINR(F)::B(D)
      • B(i);P_PINB(D),P_PINR(F),S_CUTR(f)::QAR1(A)
      • B(i);N_GUARD,P_PINR(F)::B(D),XB(i)
      • S(a);N_GUARD::QAB1(A),XS(a)
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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).