MESON Chess Problem Database

Problem Display
PID: 158196 (2rR4/NNnpPRpB/6p1/3k1p2/p4n2/1P3P2/KQP1r2b/B4b2 w - - 0 1)

Bakker, Peter Arie

Probleemblad, 1973

2rR4/NNnpPRpB/6p1/3k1p2/p4n2/1P3P2/KQP1r2b/B4b2

#2

12 + 12

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Rd2
      • 2.Qe5#
    • 1...Rf2
      • 2.Qe5#
    • 1...Rg2
      • 2.Qe5#
    • 1...Re5
      • 2.Qxe5#
    • 1...Re6
      • 2.Qd4#
    • 1...Sfe6
      • 2.c4#
    • 1...Sce6
      • 2.Rxd7#
    • 1...axb3+
      • 2.Qxb3#
    • 1...d6
      • 2.Rxd6#
  • Keys
    • 1.Bg8!
      • threat
        • 2.Rxf5#
      • 1...axb3+
        • 2.Qxb3#
      • 1...Ke6
        • 2.Rxg7#
      • 1...Re5
        • 2.Qxe5#
      • 1...Re6
        • 2.Qd4#
      • 1...Sfe6
        • 2.c4#
      • 1...Sce6
        • 2.Rxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • R(b);N_GUARD::QAR1(C)
    • R(b);N_GUARD::QAR1(C),XR(b)
    • R(b);SBLOCK::QAR1(C)
    • S(e);SBLOCK::P(D)
    • S(i);SBLOCK::R(L),XP(j)
    • P(d);CHECK,OGATE,XP(E)::QAB(C),XP(d)
    • P(j);OGATE::R1(L),XP(j)
  • Actual
    • B(K);
    • Threat
      • B(K)+R(J),DCHECK,XP(g)
    • Vars
      • P(d);CHECK,OGATE,XP(E)::QAB(C),XP(d)
      • K(f);N_SPINP(j),S_FLIGHT::B(K)+R(J),XP(k)
      • R(b);N_GUARD::QAR1(C),XR(b)
      • R(b);SBLOCK::QAR1(C)
      • S(e);SBLOCK::P(D)
      • S(i);SBLOCK::R(L),XP(j)
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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).