MESON Chess Problem Database

Problem Display
PID: 72965 (8/K2p1r2/3Bb3/3kP3/B5p1/1r1PP1N1/3p4/1Q1q4 w - - 0 1)

Bijpost, M

Tijdschrift vd KNSB, 1936

8/K2p1r2/3Bb3/3kP3/B5p1/1r1PP1N1/3p4/1Q1q4

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qe2
      • 2.Qxb3#
    • 1...Qf3
      • 2.Qxb3#
    • 1...Qe1
      • 2.Qxb3#
    • 1...Qf1
      • 2.Qxb3#
    • 1...Qg1
      • 2.Qxb3#
    • 1...Qh1
      • 2.Qxb3#
    • 1...Ra3
      • 2.Qb5#
      • 2.Qb7#
    • 1...Rxd3
      • 2.Qxd3#
      • 2.Qb5#
    • 1...Rb5
      • 2.Qxb5#
    • 1...Rb7+
      • 2.Qxb7#
  • Keys
    • 1.Se2!
      • threat
        • 2.e4#
      • 1...Rb7+
        • 2.Qxb7#
      • 1...Qxe2
        • 2.Qxb3#
      • 1...Rxd3
        • 2.Qxd3#
      • 1...Rb5
        • 2.Qxb5#
      • 1...Bf5
        • 2.Sf4#
      • 1...Qg1
        • 2.Qxb3#
      • 1...Qh1
        • 2.Qxb3#
      • 1...Rb4
        • 2.Sc3#
      • 1...Rf4
        • 2.Sxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • Q(a);N_GUARD::QAB(A),XR(c)
    • Q(a);N_GUARD,P_PINP(C)::QAB(A),XR(c)
    • R(c);OGATE::QAR2(A),XR(c)
    • R(c);CHECK,OGATE::QAB(A),XR(c)
  • Actual
    • S(D);
    • Threat
      • P(C)
    • Vars
      • R(c);CHECK,OGATE::QAB(A),XR(c)
      • Q(a);N_GUARD,XS(D)::QAB(A),XR(c)
      • R(c);OGATE,XP(B)::QAR2(A),XR(c)
      • R(c);OGATE::QAR2(A),XR(c)
      • B(f);S_CUTR(h)::S(D)
      • Q(a);N_GUARD,P_PINP(C)::QAB(A),XR(c)
      • Q(a);N_GUARD::QAB(A),XR(c)
      • R(c);N_GUARD::S(D)
      • R(h);N_GUARD::S(D),XR(h)
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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).