MESON Chess Problem Database

Problem Display
PID: 159997 (1R4K1/2N1b3/P3Q1n1/q1k2B2/P4n2/1pPp4/1r1N3B/2r4b w - - 0 1)

Dikusarov, Andrey Nikolayovich

Best Problems, 2011

1R4K1/2N1b3/P3Q1n1/q1k2B2/P4n2/1pPp4/1r1N3B/2r4b

#2

10 + 10

3485 Sachova skladba 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc3
      • 2.Qb6#
    • 1...Qb6
      • 2.Qxb6#
    • 1...Qxc7
      • 2.Rb5#
    • 1...Qxa4
      • 2.Qb6#
    • 1...Qb5
      • 2.Rxb5#
    • 1...Qxa6
      • 2.Sxa6#
    • 1...Rg1
      • 2.Bxg1#
    • 1...Rcc2
      • 2.Bg1#
    • 1...Rxc3
      • 2.Bg1#
    • 1...Ra2
      • 2.Sxb3#
    • 1...Rbc2
      • 2.Sxb3#
    • 1...Be4
      • 2.Sxe4#
    • 1...Bd6
      • 2.Qc4#
    • 1...Se2
      • 2.Qc4#
    • 1...Sg2
      • 2.Se4#
      • 2.Qc4#
      • 2.Qd5#
    • 1...Sh3
      • 2.Qc4#
    • 1...Sh5
      • 2.Qc4#
  • Keys
    • 1.Be4!
      • threat
        • 2.Qc6#
      • 1...Qxc3
        • 2.Qb6#
      • 1...Qxc7
        • 2.Rb5#
      • 1...Qxa4
        • 2.Qb6#
      • 1...Qxa6
        • 2.Sxa6#
      • 1...Rxc3
        • 2.Bg1#
      • 1...Bxe4
        • 2.Sxe4#
      • 1...Sxe6
        • 2.Sxe6#
      • 1...Qb6
        • 2.Qxb6#
      • 1...Qb5
        • 2.Rxb5#
      • 1...Bd6
        • 2.Qc4#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Se5
        • 2.Qxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • Q(g);N_GUARD,XP(C)::QAB1(G)
    • Q(g);N_GUARD::QAB1(G),XQ(g)
    • Q(g);N_GUARD,XS(H)::R1(I)
    • Q(g);N_GUARD,XP(D)::QAB1(G)
    • Q(g);N_GUARD::R1(I),XQ(g)
    • Q(g);XP(F)::S(H),XQ(g)
    • R(a);N_GUARD::B(B),XR(a)
    • R(a);N_GUARD::B(B)
    • R(a);N_GUARD,XP(C)::B(B)
    • R(c);N_GUARD::S(A),XP(d)
    • B(b);N_GUARD::S(A),XB(b)
    • B(j);SBLOCK::QAR1(G)
    • S(f);::QAR1(G)
  • Actual
    • B(E);
    • Threat
      • QAR1(G)
    • Vars
      • Q(g);N_GUARD,XP(C)::QAB1(G)
      • Q(g);N_GUARD,XS(H)::R1(I)
      • Q(g);N_GUARD,XP(D)::QAB1(G)
      • Q(g);XP(F)::S(H),XQ(g)
      • R(a);N_GUARD,XP(C)::B(B)
      • B(b);XB(E)::S(A),XB(b)
      • S(f);XQ(G)::S(H),XS(f)
      • Q(g);N_GUARD::QAB1(G),XQ(g)
      • Q(g);N_GUARD::R1(I),XQ(g)
      • B(j);SBLOCK::QAR1(G)
      • S(f);N_GUARD::QAR1(G),XS(f)
      • S(i);N_GUARD::QAB(G),XB(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).