MESON Chess Problem Database

Problem Display
PID: 153030 (6qQ/2p2pPp/8/6p1/3bpPR1/3p1N2/8/R4K1k w - - 0 1)

Henrych, Miroslav

Sachova skladba, 1985

6qQ/2p2pPp/8/6p1/3bpPR1/3p1N2/8/R4K1k

#2

7 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qa8
      • 2.Qxh7#
    • 1...Qb8
      • 2.Qxh7#
    • 1...Qc8
      • 2.Qxh7#
    • 1...Qd8
      • 2.Qxh7#
    • 1...Qe8
      • 2.Qxh7#
    • 1...Qf8
      • 2.Qxh7#
    • 1...Bxa1
      • 2.Rg1#
    • 1...Bg1
      • 2.Rxg1#
    • 1...Bb2
      • 2.Rg1#
    • 1...Bf2
      • 2.Kxf2#
    • 1...Bc3
      • 2.Rg1#
    • 1...Be5
      • 2.Rg1#
    • 1...Bf6
      • 2.Rg1#
    • 1...Bxg7
      • 2.Rg1#
    • 1...e3
      • 2.Rg1#
    • 1...gxf4
      • 2.Rh4#
    • 1...h5
      • 2.Qxh5#
    • 1...h6
      • 2.Qxh6#
  • Tries
    • 1.Rg2?
      • threat
        • 2.Rh2#
      • 1...Bg1
        • 2.Rxg1#
      • 1...exf3!
    • 1.Rxg5?
      • threat
        • 2.Rh5#
      • 1...Bf2
        • 2.Kxf2#
      • 1...Qd8
        • 2.Qxh7#
      • 1...Bg1
        • 2.Rxg1#
      • 1...Bf6
        • 2.Rg1#
      • 1...h5
        • 2.Rxh5#
        • 2.Qxh5#
      • 1...Qc8!
  • Keys
    • 1.fxg5!
      • threat
        • 2.Rh4#
      • 1...Bf2
        • 2.Kxf2#
      • 1...Qc8
        • 2.Qxh7#
      • 1...Bg1
        • 2.Rxg1#
      • 1...Be5
        • 2.Rg1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 14
  • Sets
    • Q(i);N_GUARD::QAR(G),XP(h)
    • B(c);N_GUARD,SBLOCK,XR(A)::R1(E)
    • B(c);N_GUARD::R1(E),XB(c)
    • B(c);N_GUARD::R1(E)
    • B(c);::R(A)+K(B),XB(c)
    • B(c);N_GUARD,XP(F)::R1(E)
    • P(d);S_CUTB(c)::R1(E)
    • P(e);N_GUARD,XP(D)::R(E)
    • P(h);OGATE::QAR(G),XP(h)
  • Tries
    • Try
      • R(E);
      • Threat
        • R1(E)
      • Vars
        • B(c);N_GUARD::R1(E),XB(c)
      • Refutation
        • P(d);XS(C)
    • Try
      • R(E);XP(e)
      • Threat
        • R(E)
      • Vars
        • B(c);::R(A)+K(B),XB(c)
        • Q(i);N_GUARD::QAR(G),XP(h)
        • B(c);N_GUARD::R1(E),XB(c)
        • B(c);N_GUARD::R1(E)
      • Refutation
        • Q(i);
  • Actual
    • P(D);XP(e)
    • Threat
      • R(E)
    • Vars
      • B(c);::R(A)+K(B),XB(c)
      • Q(i);N_GUARD::QAR(G),XP(h)
      • B(c);N_GUARD::R1(E),XB(c)
      • B(c);N_GUARD::R1(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).