MESON Chess Problem Database

Problem Display
PID: 71009 (8/4pp2/3R3B/2pp2KP/1nQP4/4k1Pq/1N1bpp2/4rbRB w - - 0 1)

Juricek, Stanislav

Sachove umeni (Ceskoslovensky sach), 2005

8/4pp2/3R3B/2pp2KP/1nQP4/4k1Pq/1N1bpp2/4rbRB

#2

10 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Qg4+
      • 2.Kxg4#
    • 1...Qf5+
      • 2.Kxf5#
    • 1...Qd7
      • 2.Kh4#
    • 1...Qc8
      • 2.Kh4#
    • 1...Qh2
      • 2.Kg4#
      • 2.Kf5#
    • 1...Qxg3+
      • 2.Rxg3#
    • 1...Qh4+
      • 2.Kxh4#
    • 1...Qxh5+
      • 2.Kxh5#
    • 1...Sa2
      • 2.Qd3#
    • 1...Sc2
      • 2.Qd3#
    • 1...Sd3
      • 2.Qxd3#
    • 1...Sa6
      • 2.Qd3#
    • 1...Sc6
      • 2.Qd3#
    • 1...exd6
      • 2.Kf6#
    • 1...e5
      • 2.Kf6#
    • 1...e6
      • 2.Kf6#
    • 1...f5
      • 2.Re6#
    • 1...f6+
      • 2.Kg6#
  • Tries
    • 1.Re6+?
      • 1...fxe6
        • 2.Kg6#
      • 1...Qxe6!
    • 1.Qc3+?
      • 1...Sd3
        • 2.Qxd3#
      • 1...Bxc3!
  • Keys
    • 1.dxc5!
      • threat
        • 2.Qf4#
      • 1...Qg4+
        • 2.Kxg4#
      • 1...Qf5+
        • 2.Kxf5#
      • 1...Qxg3+
        • 2.Rxg3#
      • 1...Qh4+
        • 2.Kxh4#
      • 1...Qxh5+
        • 2.Kxh5#
      • 1...f6+
        • 2.Kg6#
      • 1...dxc4
        • 2.Sxc4#
      • 1...Sd3
        • 2.Qxd3#
      • 1...d4
        • 2.Qxd4#
      • 1...e5
        • 2.Kf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 9
  • Sets
    • Q(g);CHECK::B(J)+K(G),XQ(g)
    • Q(g);::B(J)+K(G)
    • Q(g);CHECK,OGATE,XP(D)::R(A),XQ(g)
    • Q(g);CHECK,XP(H)::B(J)+K(G),XQ(g)
    • S(h);N_GUARD::QAR1(E)
    • S(h);N_GUARD::QAR1(E),XS(h)
    • P(k);XR(I)::B(J)+K(G)
    • P(k);::B(J)+K(G)
    • P(l);N_GUARD,S_CUTQ(g)::R(I)
    • P(l);CHECK::B(J)+K(G)
  • Tries
    • Try
      • R(I);CHECK
      • Vars
        • P(l);XR(I)::B(J)+K(G)
      • Refutation
        • Q(g);XR(I)
    • Try
      • Q(E);CHECK
      • Vars
        • S(h);N_GUARD,P_SPINS(h)::QAR1(E),XS(h)
      • Refutation
        • B(c);XQ(E)
  • Actual
    • P(F);XP(i)
    • Threat
      • QAB1(E)
    • Vars
      • Q(g);CHECK::B(J)+K(G),XQ(g)
      • Q(g);CHECK,OGATE,XP(D)::R(A),XQ(g)
      • Q(g);CHECK,XP(H)::B(J)+K(G),XQ(g)
      • P(l);CHECK::B(J)+K(G)
      • P(j);XQ(E)::S(C),XP(j)
      • S(h);N_GUARD::QAR1(E),XS(h)
      • P(j);::QAB1(E),XP(j)
      • P(k);::B(J)+K(G)
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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).