MESON Chess Problem Database

Problem Display
PID: 162799 (B2nR1bB/1r5n/3Nprp1/1pp1k1pP/4p1P1/2P5/3Q4/5R1K w - - 0 1)

Guida, Marco

Die Schwalbe, 2016

B2nR1bB/1r5n/3Nprp1/1pp1k1pP/4p1P1/2P5/3Q4/5R1K

#2

10 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Rb6
      • 2.Qh2#
      • 2.Qd5#
    • 1...Ra7
      • 2.Qh2#
      • 2.Qd5#
    • 1...Rc7
      • 2.Qh2#
      • 2.Qd5#
    • 1...Rd7
      • 2.Qh2#
      • 2.Qd5#
    • 1...Re7
      • 2.Qh2#
    • 1...Rf7
      • 2.Qh2#
      • 2.Qd5#
    • 1...Rg7
      • 2.Qd5#
    • 1...Rb8
      • 2.Qh2#
      • 2.Qd5#
    • 1...Sf8
      • 2.Bxf6#
    • 1...b4
      • 2.Sc4#
    • 1...c4
      • 2.Qd4#
    • 1...gxh5
      • 2.Rf5#
  • Tries
    • 1.Rf4?
      • threat
        • 2.Rxe4#
      • 1...e3
        • 2.Re4#
      • 1...gxf4!
    • 1.c4?
      • threat
        • 2.Qd5#
      • 1...bxc4
        • 2.Sxc4#
      • 1...Re7!
  • Keys
    • 1.hxg6!
      • threat
        • 2.Rf5#
      • 1...Re7
        • 2.Qh2#
      • 1...Rg7
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • R(i);N_SPINP(f)::QAB(C)
    • R(i);N_SPINR(g)::QAR1(C)
    • S(j);N_GUARD::B(J),XR(g)
    • P(b);N_GUARD::S(G)
    • P(c);N_GUARD::QAB1(C)
    • P(h);N_GUARD,XP(F)::R1(A)
  • Tries
    • Try
      • R(A);
      • Threat
        • R1(A),XP(a)
      • Vars
        • P(a);::R1(A)
      • Refutation
        • P(e);XR(A)
    • Try
      • P(D);
      • Threat
        • QAR1(C)
      • Vars
        • P(b);XP(D)::S(G),XP(b)
      • Refutation
        • R(i);N_SPINP(f)
  • Actual
    • P(F);XP(h)
    • Threat
      • R1(A)
    • Vars
      • R(i);N_SPINP(f)::QAB(C)
      • R(i);N_SPINR(g)::QAR1(C)
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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).