MESON Chess Problem Database

Problem Display
PID: 183645 (2RN4/p3PBK1/1p3N1Q/1p5P/3k1P2/3P4/2PP2b1/4r2r w - - 0 1)

Colaneri, Bruno

Best Problems, 2018

2RN4/p3PBK1/1p3N1Q/1p5P/3k1P2/3P4/2PP2b1/4r2r

#2

12 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Se6#
    • 1...Rb1
      • 2.Se6#
    • 1...Rc1
      • 2.Se6#
    • 1...Rd1
      • 2.Se6#
    • 1...Ref1
      • 2.Se6#
    • 1...Reg1
      • 2.Se6#
    • 1...Re6
      • 2.Sxe6#
    • 1...Be4
      • 2.Se6#
    • 1...b4
      • 2.Rc4#
  • Tries
    • 1.Sc6+?
      • 1...Kc5
        • 2.Sd7#
      • 1...Bxc6!
  • Keys
    • 1.Se4!
      • threat
        • 2.Sc6#
        • 2.Qd6#
        • 2.Qf6#
      • 1...Rxe4
        • 2.Qd6#
      • 1...Rxh5
        • 2.Sc6#
      • 1...Bxe4
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 8
  • Sets
    • R(a);N_GUARD::S(L)
    • R(a);N_GUARD::S(L),XR(a)
    • B(c);S_CUTR(a)::S(L)
    • P(e);N_GUARD::R1(K)
  • Tries
    • Try
      • S(L);CHECK
      • Vars
        • K(d);S_FLIGHT::S(F)
      • Refutation
        • B(c);XS(L)
  • Actual
    • S(F);
    • Threat
      • DUALS(3)
    • Vars
      • R(a);XS(F)::QAR2(G)
      • R(b);XP(E)::S(L)
      • B(c);XS(F)::QAB(G)
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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).