MESON Chess Problem Database

Problem Display
PID: 160001 (2b5/r7/1R2P1R1/1Nr1k1pN/p4pB1/2p1BQ1n/K5n1/6b1 w - - 0 1)

Mariani, Stefano

Best Problems, 2011

2b5/r7/1R2P1R1/1Nr1k1pN/p4pB1/2p1BQ1n/K5n1/6b1

#2

9 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Bh2
      • 2.Bd4#
    • 1...Bxe6+
      • 2.Rbxe6#
      • 2.Rgxe6#
    • 1...Sf2
      • 2.Bd4#
      • 2.Rxg5#
    • 1...fxe3
      • 2.Qf5#
  • Tries
    • 1.Sd6?
      • threat
        • 2.Qe4#
      • 1...Bxe6+
        • 2.Rxe6#
      • 1...Rc4
        • 2.Sxc4#
      • 1...Bb7
        • 2.Sf7#
      • 1...Sf2
        • 2.Rxg5#
      • 1...Rc6!
  • Keys
    • 1.Sf6!
      • threat
        • 2.Qe4#
      • 1...Bxe6+
        • 2.Rxe6#
      • 1...Bb7
        • 2.Sd7#
      • 1...Rc4
        • 2.Qd5#
      • 1...Sf2
        • 2.Bd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD::B(B)
    • P(f);OGATE,XB(B)::QAR1(C)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAR1(C)
      • Vars
        • B(k);CHECK,OGATE,XP(H)::R1(I),XB(k)
        • R(g);N_GUARD::S(E),XR(g)
        • B(k);S_CUTR(j)::S(E)
        • S(d);N_GUARD::R(I),XP(i)
      • Refutation
        • R(g);
  • Actual
    • S(F);
    • Threat
      • QAR1(C)
    • Vars
      • B(k);CHECK,OGATE,XP(H)::R1(G),XB(k)
      • B(k);N_GUARD,S_CUTR(j)::S(F)
      • R(g);N_GUARD::QAR1(C)
      • S(d);S_CUTB(a)::B(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).