MESON Chess Problem Database

Problem Display
PID: 87825 (1K4B1/N1pp4/6p1/R4nNq/2pk3r/2n5/2P2P2/Q3R2b w - - 0 1)

Stolev, Nikola

The Macedonian Problemist, 2000

1K4B1/N1pp4/6p1/R4nNq/2pk3r/2n5/2P2P2/Q3R2b

#2

9 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qd1
      • 2.Rxd1#
    • 1...Qh6
      • 2.Rd1#
    • 1...Qh7
      • 2.Rd1#
    • 1...Qh8
      • 2.Rd1#
    • 1...Re4
      • 2.Rd5#
    • 1...Rg4
      • 2.Rd1#
    • 1...Bd5
      • 2.Rxd5#
    • 1...Se3
      • 2.fxe3#
    • 1...c5
      • 2.Sb5#
    • 1...d5
      • 2.Se6#
      • 2.Sc6#
    • 1...d6
      • 2.Se6#
  • Tries
    • 1.Sc6+?
      • 1...dxc6
        • 2.Se6#
      • 1...Bxc6!
    • 1.Re4+?
      • 1...Rxe4
        • 2.Rd5#
      • 1...Bxe4!
  • Keys
    • 1.Qa3!
      • threat
        • 2.Qc5#
      • 1...Sb1
        • 2.Sb5#
      • 1...Sd1
        • 2.Sb5#
      • 1...Sa2
        • 2.Sb5#
      • 1...Se2
        • 2.Rd1#
      • 1...Sa4
        • 2.Sb5#
      • 1...Se4
        • 2.Rd5#
      • 1...Sb5
        • 2.Sxb5#
      • 1...Sd5
        • 2.Sb5#
      • 1...c5
        • 2.Qxc5#
      • 1...d6
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 8
    • REMOVED MATES = 8
  • Sets
    • Q(g);N_GUARD::R(B),XQ(g)
    • Q(g);N_GUARD::R(B)
    • Q(g);N_GUARD,P_PINB(I)::R(B)
    • R(e);S_CUTB(a)::R1(E)
    • R(e);S_CUTQ(g)::R(B)
    • B(a);N_GUARD::R1(E),XB(a)
    • S(f);OGATE::P(D),XS(f)
    • P(i);SBLOCK::S(G)
    • P(j);N_GUARD::S(F)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • P(j);XS(G)::S(F)
      • Refutation
        • B(a);XS(G)
    • Try
      • R(B);CHECK
      • Vars
        • R(e);XR(B)::R1(E)
      • Refutation
        • B(a);XR(B)
  • Actual
    • Q(A);N_PINS(b)
    • Threat
      • QAB1(A)
    • Vars
      • S(b);N_GUARD::S(G)
      • S(b);N_GUARD,S_CUTQ(g)::R(B)
      • S(b);N_GUARD,S_CUTB(a)::R1(E)
      • S(b);N_GUARD::S(G),XS(b)
      • P(i);::QAB1(A),XP(i)
      • P(j);N_GUARD::S(F)
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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).