MESON Chess Problem Database

Problem Display
PID: 227355 (4R3/Q6B/1p2Ppr1/3prpRN/4k1pb/3N4/4KP2/8 w - - 0 1)

Juricek, Stanislav

Sachova skladba, 2020

4R3/Q6B/1p2Ppr1/3prpRN/4k1pb/3N4/4KP2/8

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rh6
      • 2.Rxg4#
    • 1...b5
      • 2.Qe3#
  • Tries
    • 1.Sxf6+?
      • 1...Rxf6
        • 2.Rxg4#
      • 1...Kd4+!
    • 1.Qxb6?
      • threat
        • 2.Qe3#
      • 1...Bxf2
        • 2.Sxf2#
      • 1...Bxg5
        • 2.Sg3#
      • 1...f4
        • 2.Sxf6#
      • 1...d4!
  • Keys
    • 1.Qa1!
      • 1...Rxe6
        • 2.Rxe6#
      • 1...Rxg5
        • 2.Sxf6#
      • 1...Bxf2
        • 2.Sxf2#
      • 1...Bxg5
        • 2.Sg3#
      • 1...fxg5
        • 2.Qxe5#
      • 1...d4
        • 2.Qh1#
      • 1...Rh6
        • 2.Rxg4#
      • 1...Rg7
        • 2.Sxf6#
      • 1...Rg8
        • 2.Sxf6#
      • 1...Bg3
        • 2.Sxg3#
      • 1...g3
        • 2.f3#
      • 1...f4
        • 2.Sxf6#
      • 1...b5
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
    • R(i);N_GUARD,P_SPINP(f)::R(D),XP(b)
    • P(g);OGATE::QAR1(G)
  • Tries
    • Try
      • S(E);CHECK,XP(h)
      • Vars
        • R(i);P_SPINP(f),XS(E)::R(D),XP(b)
      • Refutation
        • K(a);CHECK,P-FLIGHT,P_SPINP(g)
    • Try
      • Q(G);XP(g)
      • Threat
        • QAR1(G)
      • Vars
        • B(c);XP(B)::S(C),XB(c)
        • B(c);N_GUARD,XR(D)::S(E)
        • P(f);P_SPINR(i)::S(E),XP(h)
      • Refutation
        • P(d);
  • Actual
    • Q(G);
    • Vars
      • R(e);OGATE,P_SPINR(e),XP(F)::R(I),XR(e)
      • R(i);N_GUARD,P_SPINP(f),XR(D)::S(E),XP(h)
      • B(c);XP(B)::S(C),XB(c)
      • B(c);N_GUARD,XR(D)::S(E)
      • P(h);N_GUARD,XR(D)::QAR1(G),XR(e)
      • P(d);SBLOCK::QAB(G)
      • R(i);N_GUARD,P_SPINP(f)::R(D),XP(b)
      • R(i);N_GUARD,P_SPINP(f)::S(E),XP(h)
      • B(c);N_GUARD::S(E),XB(c)
      • P(b);N_GUARD::P(B)
      • P(f);P_SPINR(i)::S(E),XP(h)
      • P(g);N_GUARD::S(C)
HTML5 logo

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).