MESON Chess Problem Database

Problem Display
PID: 266096 (N3n3/p2K4/4NpQ1/3k4/2p2P2/8/r7/b7 w - - 0 1)

Juricek, Stanislav

Sachova skladba, 2022

N3n3/p2K4/4NpQ1/3k4/2p2P2/8/r7/b7

#2

5 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rb2
      • 2.Qf5#
    • 1...Rg2
      • 2.Qxg2#
    • 1...Ra4
      • 2.Qg2#
    • 1...Ra5
      • 2.Qg2#
    • 1...Ra6
      • 2.Qg2#
    • 1...Bb2
      • 2.Qg2#
    • 1...Sd6
      • 2.Sac7#
    • 1...Sc7
      • 2.Saxc7#
    • 1...Sg7
      • 2.Sac7#
    • 1...c3
      • 2.Qd3#
    • 1...a5
      • 2.Sb6#
    • 1...a6
      • 2.Sb6#
  • Tries
    • 1.Qd3+?
      • 1...Bd4
        • 2.Qf3#
        • 2.Qxd4#
      • 1...cxd3!
    • 1.Qh5+?
      • 1...Be5
        • 2.Qf3#
      • 1...f5
        • 2.Qf3#
      • 1...Ke4!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Qb7#
      • 1...c3
        • 2.Qd3#
      • 1...Rb2
        • 2.Qf5#
      • 1...Ra6
        • 2.Qh1#
      • 1...Bb2
        • 2.Qh1#
      • 1...Sd6
        • 2.Sac7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 7
  • Sets
    • R(b);S_CUTB(a)::QAR2(C)
    • R(b);N_GUARD::QAB(C),XR(b)
    • R(b);N_GUARD::QAB(C)
    • B(a);S_CUTR(b)::QAB(C)
    • S(g);N_GUARD::S(E)
    • S(g);N_GUARD::S(E),XS(g)
    • P(c);N_GUARD,S_CUTB(a)::QAR2(C)
    • P(f);N_GUARD::S(E)
  • Tries
    • Try
      • Q(C);CHECK
      • Refutation
        • P(c);XQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • B(a);P_SPINB(a)::QAB(C)
        • P(e);P_SPINP(e)::QAB(C)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • Q(C);
    • Threat
      • QAB(C)
    • Vars
      • P(c);N_GUARD,S_CUTB(a)::QAR2(C)
      • R(b);S_CUTB(a)::QAR2(C)
      • R(b);N_GUARD::QAB(C)
      • B(a);S_CUTR(b)::QAB(C)
      • S(g);N_GUARD::S(E)
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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).