MESON Chess Problem Database

Problem Display
PID: 195847 (5n1Q/P2p2n1/3R3K/1p3bR1/2pBk2p/r2N1pp1/4P1B1/6Nq w - - 0 1)

Einat, Paz

1st Prize, Springaren, 2015

5n1Q/P2p2n1/3R3K/1p3bR1/2pBk2p/r2N1pp1/4P1B1/6Nq

#2

10 + 12

145 StrateGems 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qxg1
      • 2.Bxf3#
    • 1...Qh2
      • 2.Bxf3#
    • 1...Qh3
      • 2.Bxf3#
    • 1...Rb3
      • 2.a8Q#
      • 2.a8B#
    • 1...Rc3
      • 2.a8Q#
      • 2.a8B#
    • 1...Bh3
      • 2.Re5#
    • 1...Bg4
      • 2.Re5#
    • 1...Be6
      • 2.Re5#
    • 1...Bg6
      • 2.Re5#
    • 1...Bh7
      • 2.Re5#
    • 1...Sh5
      • 2.Qe5#
    • 1...Sge6
      • 2.Qe5#
    • 1...Se8
      • 2.Qe5#
    • 1...Sfe6
      • 2.Qa8#
    • 1...Sg6
      • 2.Qa8#
    • 1...Sh7
      • 2.Qa8#
  • Keys
    • 1.Sh3!
      • threat
        • 2.Sc5#
      • 1...Qxh3
        • 2.Bxf3#
      • 1...Rxd3
        • 2.a8Q#
        • 2.a8B#
      • 1...Bxh3
        • 2.Re5#
      • 1...cxd3
        • 2.exf3#
      • 1...Sge6
        • 2.Qe5#
      • 1...Sfe6
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 10
  • Sets
    • Q(a);N_GUARD,XS(A)::B(C),XP(c)
    • Q(a);N_GUARD::B(C),XP(c)
    • R(b);N_GUARD::P=Q
    • B(i);OGATE::R1(F)
    • S(k);OGATE::QAR1(J)
    • S(l);OGATE::QAB(J)
  • Actual
    • S(A);
    • Threat
      • S(D)
    • Vars
      • Q(a);N_GUARD,XS(A)::B(C),XP(c)
      • R(b);N_GUARD,XS(D)::P=Q
      • B(i);OGATE,XS(A)::R1(F)
      • P(e);SBLOCK,XS(D)::P(B),XP(c)
      • S(k);OGATE::QAR1(J)
      • S(l);OGATE::QAB(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).